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doc-exports/docs/evs/umn/ALL_META.TXT.json
lizaoxu 00b6f42eca evs_umn_GPSSD2 
Reviewed-by: Muller, Martin <martin.muller@t-systems.com>
Co-authored-by: lizaoxu <lizaoxu@huawei.com>
Co-committed-by: lizaoxu <lizaoxu@huawei.com>
2026-02-12 13:06:48 +00:00

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"dockw":"Elastic Volume Service User Guide - Deutsche Telekom - Switzerland Cloud - In Use"
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"des":"Elastic Volume Service (EVS) offers scalable block storage for cloud servers. EVS disks provide high reliability, high performance, and come with a variety of disk types.",
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"des":"EVS disks are classified based on the disk I/O performance. EVS disks differ in performance and price. You can choose whichever disk type that is the best fit for your ap",
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"uri":"evs_01_1137.html",
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"code":"4",
"des":"General Purpose SSD V2 is a next-generation General Purpose SSD disk type. You can buy General Purpose SSD V2 disks of a given capacity with the IOPS and throughput tailo",
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"uri":"en-us_topic_0052554220.html",
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"product_code":"evs",
"code":"5",
"des":"There are two EVS device types: Virtual Block Device (VBD) and Small Computer System Interface (SCSI).VBD is the default EVS device type. VBD EVS disks support only basic",
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"uri":"en-us_topic_0032860759.html",
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"code":"6",
"des":"Disk sharing allows you to create shared EVS disks. Shared EVS disks are block storage devices that support concurrent read/write operations and can be attached to multip",
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"uri":"evs_01_0001.html",
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"code":"7",
"des":"EVS enables you to encrypt data on newly created disks as required.It uses the industry-standard XTS-AES-256 cryptographic algorithm and keys to encrypt EVS disks. Keys u",
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"title":"Disk Encryption",
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"uri":"evs_01_0021.html",
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"code":"8",
"des":"Cloud Disk Backup provided by Cloud Backup and Recovery (CBR) allows you to create backups for your EVS disks while servers are running. If data loss or damage occurred d",
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"uri":"evs_01_2722.html",
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"code":"9",
"des":"A snapshot is a complete copy or image of the disk data taken at a specific time. Snapshot is a major DR approach, and you can use a snapshot to restore disk data to the ",
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"uri":"evs_01_0048.html",
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"des":"Both disk backups and disk snapshots provide redundancies for improved disk data reliability. Table 1 lists the differences between them.",
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"uri":"evs_01_0056.html",
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"code":"11",
"des":"The backend storage system of EVS employs three-copy redundancy to guarantee data reliability. With this mechanism, one piece of data is by default divided into multiple ",
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"des":"If your services or disk data demands high reliability, you can use the cross-AZ replication feature provided by EVS. You can create a disaster recovery (DR) disk for a p",
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"title":"EVS Replication (Deprecated)",
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{
"uri":"evs_01_0086.html",
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"product_code":"evs",
"code":"13",
"des":"If you need to assign different permissions to personnel in your enterprise to access your EVS resources on the cloud, IAM is a good choice for fine-grained permissions m",
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"title":"Permissions",
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"product_code":"evs",
"code":"14",
"des":"This section describes the constraints on using EVS.You can log in to the console to view default quotas. You can to apply for a larger quota if needed.",
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"uri":"evs_01_0106.html",
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"code":"15",
"des":"Figure 1 shows the relationships between EVS and other services.Relationships between EVS and other services",
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"title":"EVS and Other Services",
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"uri":"evs_01_0101.html",
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"code":"16",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_01_0097.html",
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"code":"18",
"des":"A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.A region is a physical data center, which",
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"des":"Figure 1 shows the process for using EVS.Process overviewEVS disks can be attached to servers to be used as system disks or data disks. For details, see Table 1.Method of",
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"des":"If the storage space on your servers is insufficient, you can create EVS disks to add more storage space. This section describes how to create new data disks.System disks",
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"uri":"evs_01_0036.html",
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"code":"23",
"des":"Separately created EVS disks are data disks. In the disk list, the function of such disks is displayed as Data disk, and the status is displayed as Available. In this cas",
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"kw":"Attaching a Non-Shared Disk,Attaching an EVS Disk,Elastic Volume Service User Guide - Deutsche Telek",
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"uri":"evs_01_0037.html",
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"des":"Separately created shared EVS disks are data disks. In the disk list, the function of such a disk is displayed as Data disk, and the status is displayed as Available. In ",
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"uri":"evs_01_0058.html",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_01_0038.html",
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"des":"After a disk is attached to a server, you need to log in to the server to initialize the disk, that is, format the disk. You must initialize a disk before accessing it.Sy",
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"uri":"evs_01_0045.html",
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"code":"27",
"des":"This section uses Windows Server 2019 Standard 64bit to describe how to initialize a data disk attached to a server running Windows.The maximum disk capacity supported by",
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"uri":"evs_01_0033.html",
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"product_code":"evs",
"code":"28",
"des":"This section uses CentOS 7.4 64bit to describe how to initialize a data disk attached to a server running Linux and use fdisk to partition the data disk.The maximum parti",
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"des":"This section uses CentOS 7.4 64bit to describe how to initialize a data disk attached to a server running Linux and use parted to partition the data disk.The maximum part",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_01_0089.html",
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"code":"31",
"des":"You can use IAM for fine-grained permissions control for your EVS resources. With IAM, you can:Create IAM users for personnel based on your enterprise's organizational st",
"doc_type":"usermanual",
"kw":"Creating a User and Granting EVS Permissions,Permissions Management,Elastic Volume Service User Guid",
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"title":"Creating a User and Granting EVS Permissions",
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"uri":"evs_01_0090.html",
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"product_code":"evs",
"code":"32",
"des":"You can create custom policies to supplement the system-defined policies of EVS. For the actions supported for custom policies, see section \"Permissions Policies and Supp",
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"kw":"EVS Custom Policies,Permissions Management,Elastic Volume Service User Guide - Deutsche Telekom - Sw",
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"uri":"evs_01_0057.html",
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"code":"33",
"des":"Figure 1 shows the process for using EVS.Process of using EVSEVS disks can be attached to servers to be used as system disks or data disks. For details, see Table 1.Metho",
"doc_type":"usermanual",
"kw":"Creating and Using an EVS Disk,Elastic Volume Service User Guide - Deutsche Telekom - Switzerland Cl",
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"title":"Creating and Using an EVS Disk",
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"uri":"evs_01_0073.html",
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"code":"34",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_01_0074.html",
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"code":"35",
"des":"This section describes how to attach an existing system disk.System disks can only be attached offline, which means that the server must be in the Stopped state.You can v",
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"des":"To do so, perform the following operations:View more information on the Summary tab.",
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"des":"Disk names are used to identify disks. After a disk is created, you can perform operations in this section to change the disk name if needed.The Elastic Volume Service pa",
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"uri":"evs_faq_0048.html",
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"des":"No.The AZ of a disk cannot be changed after you have created the disk. If you want to change the AZ, delete the disk and create a new one.",
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"uri":"evs_faq_0014.html",
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"des":"If an error occurs, the disk may show one of the states listed in the following table. Take the measures described in the table to handle the exceptions.",
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"uri":"evs_faq_0021.html",
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"des":"EVS disks have two device types: VBD and SCSI. WWNs are used as the unique identifiers for SCSI EVS disks, and VBD EVS disks do not have WWNs.You can view the WWN of a SC",
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"uri":"evs_faq_0020.html",
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"uri":"evs_faq_0059.html",
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"des":"Data migration involves the following scenarios:Cross-AZ data migration: Disk data can be migrated from one AZ to another through disk backups. You can create backups for",
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"uri":"evs_faq_0084.html",
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"des":"A system disk runs the server OS. It is like drive C in a PC.When a server is created, a system disk is automatically created and attached. You cannot create a system dis",
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"uri":"evs_faq_0091.html",
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"des":"Solution:Install the ntfsprogs software to enable Linux to access the NTFS file system.yum install ntfsprogsyum install ntfsprogsView the data disks previously attached t",
"doc_type":"usermanual",
"kw":"How Can I Export the Original Data After I Changed My Server OS from Windows to CentOS?,General,Elas",
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"uri":"evs_faq_0092.html",
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"des":"Table 1 lists the common disk partition styles. In Linux, different partition styles require different partitioning tools.The maximum disk size supported by MBR is 2 TiB,",
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"uri":"evs_faq_0095.html",
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"des":"Before an EVS disk is attached, the system will call the reserveVolume EVS API to check whether the disk can be attached. If it can be attached, the system then changes t",
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"kw":"What Does the \"reserveVolume\" Trace Mean in CTS?,General,Elastic Volume Service User Guide - Deutsch",
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"uri":"evs_faq_0087.html",
"node_id":"evs_faq_0087.xml",
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"code":"107",
"des":"EVS disk data cannot be directly saved to a local PC. It is recommended that you use a third-party tool, such as FTP, to download the data.",
"doc_type":"usermanual",
"kw":"How Can I Download My EVS Disk Data to a Local PC?,General,Elastic Volume Service User Guide - Deuts",
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"uri":"evs_faq_0096.html",
"node_id":"evs_faq_0096.xml",
"product_code":"evs",
"code":"108",
"des":"EVS disks must be attached to servers before you can use them. For how to upload files, see \"How Do I Upload Files to My ECS?\" in the Elastic Cloud Server User Guide.",
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"des":"Symptom: A data disk has been attached to a Linux server on the console, but the disk cannot be viewed on the server.Run df -TH to view the disk information. CentOS 7.4 i",
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"des":"A non-shared disk can only be attached to one server.A shared disk can be attached to up to 16 servers. Shared disks are a type of EVS disks that can be attached to multi",
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"des":"No.Disks and the server you attach the disks to must be in the same AZ. The same is true for shared disks. A shared disk can only be attached to the servers in the same A",
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"uri":"evs_faq_0043.html",
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"des":"Data disks can be created during or after the server creation. If you create data disks during the server creation, the system will automatically attach the data disks to",
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"uri":"evs_faq_0076.html",
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"des":"You are advised not to attach a Linux EVS disk to a Windows server or attach a Windows EVS disk to a Linux server.The disk information may fail to be displayed due to the",
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"uri":"evs_faq_0078.html",
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"des":"This section describes how to change the function of a disk on the original server.System disk created along with a server: You can detach the system disk and then re-att",
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"uri":"evs_faq_0094.html",
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"des":"You find that the device name displayed in the ECS OS is different from that displayed on the console and you cannot determine which disk name is correct. This section de",
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"uri":"evs_01_0077.html",
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"des":"Data will not be deleted during a system disk or data disk capacity expansion. However, incorrect operations during an expansion may result in data loss or exceptions. Yo",
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"des":"Yes. If backups or snapshots have been created for disks before capacity was expanded, you can restore your disk data from these backups or snapshots after the capacity i",
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"des":"An expansion consists of two phases:Expand the disk capacity on the console.A shared, in-use disk cannot be expanded. You must detach the shared disk from all its servers",
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"des":"An EVS system disk can be as large as 1 TiB (1,024 GiB). You can expand the capacity of a system disk to up to 1 TiB.An EVS data disk can be as large as 32 TiB (32,768 Gi",
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"des":"In Windows, if you already have a D drive and want to add an E drive, refer to the following:The System Disk: Create a New Volume with the Additional Space and Data Disk:",
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"des":"In Windows, if your disk already has, for example, a D drive and you want to add space to this drive, refer to the following:The System Disk: Add the Additional Space to ",
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"des":"After expanding disk capacity on the console, you must log in to the server and extend the disk partition and file system for the extra capacity to become available. Othe",
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"uri":"evs_faq_0074.html",
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"des":"Capacity expansion is not allowed for the disk.Possible causes are listed here in order of their probability.If the fault persists after you have ruled out one cause, mov",
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"uri":"evs_faq_0073.html",
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"des":"If no partition but only a file system is created on a data disk, extend the file system according to the following operations:Run the lsblk command. Information similar ",
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"kw":"How Do I Extend the File System of an Unpartitioned Data Disk in Linux?,Capacity Expansion,Elastic V",
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"uri":"evs_faq_0082.html",
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"des":"If the root partition of your quickly provisioned BMS is too small, extend the root partition by referring to the following procedure.This example uses CentOS 7.3 and sys",
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"uri":"evs_faq_0131.html",
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"des":"You can use either fdisk or parted to view the disk partition style.Method 1: Check Partition Style and File System Format Using fdiskMethod 2: Check Partition Style and ",
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"uri":"evs_01_0079.html",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_faq_0012.html",
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"des":"Encrypted:The CMK is disabled or scheduled for deletion.The disk can still be used, but there is no guarantee for how long it will be usable. If the disk is detached, it ",
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"uri":"evs_faq_0056.html",
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"des":"EVS disks can be used as system disks or data disks, but the way you detach each one is different.In Linux, a system disk is typically mounted on /dev/vda. In Windows, a ",
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"uri":"evs_01_0083.html",
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"code":"137",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_faq_0079.html",
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"des":"Disk data was deleted: Check whether the disk has any snapshots or backups created.If there are, use a snapshot or backup to restore the disk data to the state when the s",
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"uri":"evs_01_0082.html",
"node_id":"evs_01_0082.xml",
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"code":"139",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"evs_faq_0031.html",
"node_id":"evs_faq_0031.xml",
"product_code":"evs",
"code":"140",
"des":"The maximum capacity supported for a system disk is 1024 GiB.The maximum capacity supported for a data disk is 32768 GiB.",
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"uri":"evs_faq_0032.html",
"node_id":"evs_faq_0032.xml",
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"code":"141",
"des":"If your disk space starts to fill up, you can:Create a new disk and attach it to the server. For details, see Creating an EVS Disk.Expand the capacity of the existing dis",
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"kw":"What Should I Do If My Disk Starts to Run Out of Space?,Capacity,Elastic Volume Service User Guide -",
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"title":"What Should I Do If My Disk Starts to Run Out of Space?",
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"uri":"evs_02_0010.html",
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"code":"142",
"des":"When the EVS disk space on a server is insufficient, the server running speed will be affected, which will further affect user experience. You can clean up the disk space",
"doc_type":"usermanual",
"kw":"How Do I Clean Up My Disk Space on a Windows Server?,Capacity,Elastic Volume Service User Guide - De",
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"title":"How Do I Clean Up My Disk Space on a Windows Server?",
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"uri":"evs_faq_0069.html",
"node_id":"evs_faq_0069.xml",
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"code":"143",
"des":"The capacity of a single disk can be expanded to up to 32 TiB. If this still fails to meet your needs, it is recommended that you create RAID arrays with EVS disks or man",
"doc_type":"usermanual",
"kw":"What Can I Do If the Capacity of My Disk Reaches the Maximum But I Still Need More Space?,Capacity,E",
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"uri":"evs_faq_0035.html",
"node_id":"evs_faq_0035.xml",
"product_code":"evs",
"code":"144",
"des":"If your disk capacity is greater than 2 TiB, do not use fdisk to partition the disk. Or any space in excess of 2 TiB will be unable to show up after the disk is partition",
"doc_type":"usermanual",
"kw":"What Should I Do If I Use fdisk to Initialize a Disk Larger Than 2 TiB and Then the Space in Excess ",
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"title":"What Should I Do If I Use fdisk to Initialize a Disk Larger Than 2 TiB and Then the Space in Excess of 2 TiB Cannot Be Displayed?",
"githuburl":""
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{
"uri":"evs_faq_0053.html",
"node_id":"evs_faq_0053.xml",
"product_code":"evs",
"code":"145",
"des":"You can view the available capacity of a disk on the ECS. The operations are as follows:For how to log in to an ECS, see the Elastic Cloud Server User Guide.For how to lo",
"doc_type":"usermanual",
"kw":"How Can I View the Available Capacity of My Disk?,Capacity,Elastic Volume Service User Guide - Deuts",
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"title":"How Can I View the Available Capacity of My Disk?",
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{
"uri":"evs_faq_0061.html",
"node_id":"evs_faq_0061.xml",
"product_code":"evs",
"code":"146",
"des":"Sorry, you cannot.Currently, the capacity of an EVS disk cannot be transferred to another disk. Multiple EVS disks cannot be combined into a single, larger disk, either.C",
"doc_type":"usermanual",
"kw":"Can I Transfer the Data Disk Capacity to a System Disk?,Capacity,Elastic Volume Service User Guide -",
"search_title":"",
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"title":"Can I Transfer the Data Disk Capacity to a System Disk?",
"githuburl":""
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{
"uri":"evs_faq_280807.html",
"node_id":"evs_faq_280807.xml",
"product_code":"evs",
"code":"147",
"des":"Troubleshoot this issue by performing the following steps:Check whether the disk partition usage is 100% or almost 100%.df -hChecking the partition usageIn this example, ",
"doc_type":"usermanual",
"kw":"Why the Space of My New Disk Is Full After I Uploaded Only 500 MB of Files to the Disk?,Capacity,Ela",
"search_title":"",
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"title":"Why the Space of My New Disk Is Full After I Uploaded Only 500 MB of Files to the Disk?",
"githuburl":""
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{
"uri":"evs_01_0092.html",
"node_id":"evs_01_0092.xml",
"product_code":"evs",
"code":"148",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Snapshot",
"search_title":"",
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"title":"Snapshot",
"githuburl":""
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{
"uri":"evs_faq_0046.html",
"node_id":"evs_faq_0046.xml",
"product_code":"evs",
"code":"149",
"des":"A snapshot creation will fail if its source disk is in an intermediate state, such as Attaching and Expanding, or an abnormal state, such as Error and Restoration failed.",
"doc_type":"usermanual",
"kw":"What Are the Typical Causes of a Snapshot Creation Failure?,Snapshot,Elastic Volume Service User Gui",
"search_title":"",
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"title":"What Are the Typical Causes of a Snapshot Creation Failure?",
"githuburl":""
},
{
"uri":"evs_faq_0051.html",
"node_id":"evs_faq_0051.xml",
"product_code":"evs",
"code":"150",
"des":"No, but you can develop a program to periodically create snapshots through APIs. Alternatively, you may use the CBR service and configure automatic backup to create backu",
"doc_type":"usermanual",
"kw":"Does EVS Support Automatic Snapshot Creation?,Snapshot,Elastic Volume Service User Guide - Deutsche ",
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"title":"Does EVS Support Automatic Snapshot Creation?",
"githuburl":""
},
{
"uri":"evs_faq_0070.html",
"node_id":"evs_faq_0070.xml",
"product_code":"evs",
"code":"151",
"des":"No. Snapshots cannot be created for multiple disks at the same time. You must create snapshots for disks one by one.",
"doc_type":"usermanual",
"kw":"Can I Create Snapshots for Multiple Disks at a Time?,Snapshot,Elastic Volume Service User Guide - De",
"search_title":"",
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"title":"Can I Create Snapshots for Multiple Disks at a Time?",
"githuburl":""
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{
"uri":"evs_faq_0057.html",
"node_id":"evs_faq_0057.xml",
"product_code":"evs",
"code":"152",
"des":"There are two types of snapshots: manual snapshots you create on-demand and automatic snapshots created by the system.Manual snapshots: You may manually create snapshots ",
"doc_type":"usermanual",
"kw":"How Is a Snapshot Created for My Disk?,Snapshot,Elastic Volume Service User Guide - Deutsche Telekom",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"documenttype":"usermanual",
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"title":"How Is a Snapshot Created for My Disk?",
"githuburl":""
},
{
"uri":"evs_faq_0058.html",
"node_id":"evs_faq_0058.xml",
"product_code":"evs",
"code":"153",
"des":"Possible causes are as follows:Snapshot data can only be rolled back when the status of the snapshot's source disk is Available or Rollback failed. If the snapshot's sour",
"doc_type":"usermanual",
"kw":"Why Can't I Roll Back My Disk Data from a Snapshot?,Snapshot,Elastic Volume Service User Guide - Deu",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Why Can't I Roll Back My Disk Data from a Snapshot?",
"githuburl":""
},
{
"uri":"evs_faq_0062.html",
"node_id":"evs_faq_0062.xml",
"product_code":"evs",
"code":"154",
"des":"If you have reinstalled or changed the server OS: Snapshots of the system disk are automatically deleted. Snapshots of the data disks can be used as usual.If you have for",
"doc_type":"usermanual",
"kw":"Can I Roll Back Data from a Snapshot After Reinstalling the OS or Formatting a Disk?,Snapshot,Elasti",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Can I Roll Back Data from a Snapshot After Reinstalling the OS or Formatting a Disk?",
"githuburl":""
},
{
"uri":"evs_faq_0063.html",
"node_id":"evs_faq_0063.xml",
"product_code":"evs",
"code":"155",
"des":"The first snapshot is a full snapshot, which backs up all data (data blocks) on the EVS disk at the time of the snapshot. Subsequent snapshots are incremental snapshots, ",
"doc_type":"usermanual",
"kw":"How Is the Snapshot Size Calculated?,Snapshot,Elastic Volume Service User Guide - Deutsche Telekom -",
"search_title":"",
"metedata":[
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"prodname":"evs",
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],
"title":"How Is the Snapshot Size Calculated?",
"githuburl":""
},
{
"uri":"evs_faq_0064.html",
"node_id":"evs_faq_0064.xml",
"product_code":"evs",
"code":"156",
"des":"No.Creating snapshots establishes relationships between snapshots and the disk data. Though snapshots are stored on disks, they do not occupy the disk space.",
"doc_type":"usermanual",
"kw":"Do Snapshots Take Space on the Disk?,Snapshot,Elastic Volume Service User Guide - Deutsche Telekom -",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
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],
"title":"Do Snapshots Take Space on the Disk?",
"githuburl":""
},
{
"uri":"evs_faq_0088.html",
"node_id":"evs_faq_0088.xml",
"product_code":"evs",
"code":"157",
"des":"Yes. You can use a snapshot to roll back data to the source disk multiple times as needed.",
"doc_type":"usermanual",
"kw":"Can I Perform Multiple Rollback Operations for a Snapshot?,Snapshot,Elastic Volume Service User Guid",
"search_title":"",
"metedata":[
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"title":"Can I Perform Multiple Rollback Operations for a Snapshot?",
"githuburl":""
},
{
"uri":"evs_faq_0089.html",
"node_id":"evs_faq_0089.xml",
"product_code":"evs",
"code":"158",
"des":"No. Snapshots cannot be replicated to other regions or accounts.",
"doc_type":"usermanual",
"kw":"Can I Replicate Snapshots to Other Regions or Accounts?,Snapshot,Elastic Volume Service User Guide -",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
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],
"title":"Can I Replicate Snapshots to Other Regions or Accounts?",
"githuburl":""
},
{
"uri":"evs_faq_0102.html",
"node_id":"evs_faq_0102.xml",
"product_code":"evs",
"code":"159",
"des":"Possible causes are:You have manually deleted the snapshot.You have deleted the snapshot's source disk. Then, all the snapshots created for this disk will be deleted auto",
"doc_type":"usermanual",
"kw":"Why Can't I Find My Snapshot?,Snapshot,Elastic Volume Service User Guide - Deutsche Telekom - Switze",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Can't I Find My Snapshot?",
"githuburl":""
},
{
"uri":"evs_faq_281112.html",
"node_id":"evs_faq_281112.xml",
"product_code":"evs",
"code":"160",
"des":"The following two scenarios are supported:You can first use a snapshot to create a disk and then use the snapshot to roll back data of its source disk.You can first use a",
"doc_type":"usermanual",
"kw":"Can I Use a Snapshot to Create a Disk and Roll Back Disk Data at Almost the Same Time?,Snapshot,Elas",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"documenttype":"usermanual",
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"IsBot":"Yes"
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],
"title":"Can I Use a Snapshot to Create a Disk and Roll Back Disk Data at Almost the Same Time?",
"githuburl":""
},
{
"uri":"evs_01_0080.html",
"node_id":"evs_01_0080.xml",
"product_code":"evs",
"code":"161",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Performance",
"search_title":"",
"metedata":[
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],
"title":"Performance",
"githuburl":""
},
{
"uri":"evs_faq_0019.html",
"node_id":"evs_faq_0019.xml",
"product_code":"evs",
"code":"162",
"des":"In the disk performance test, if the first sector number is not 4-KiB aligned, the disk performance will be greatly affected. Ensure that the first sector number is 4-KiB",
"doc_type":"usermanual",
"kw":"How Do I Test My Disk Performance?,Performance,Elastic Volume Service User Guide - Deutsche Telekom ",
"search_title":"",
"metedata":[
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],
"title":"How Do I Test My Disk Performance?",
"githuburl":""
},
{
"uri":"evs_faq_0080.html",
"node_id":"evs_faq_0080.xml",
"product_code":"evs",
"code":"163",
"des":"You have followed the test performance method, but the test results do not meet expectations.During a disk performance test, the disk and stress test conditions play an i",
"doc_type":"usermanual",
"kw":"Why Does My Disk Performance Test Using Fio Have Incorrect Results?,Performance,Elastic Volume Servi",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Does My Disk Performance Test Using Fio Have Incorrect Results?",
"githuburl":""
},
{
"uri":"evs_faq_0081.html",
"node_id":"evs_faq_0081.xml",
"product_code":"evs",
"code":"164",
"des":"SymptomIf you are aware of a service slowdown, depending on if you are examining a Windows or Linux server, you can take the following actions:Windows: Open Task Manager ",
"doc_type":"usermanual",
"kw":"How Can I Handle a Slowdown in Disk Read/Write Speed or Increased I/Os?,Performance,Elastic Volume S",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Can I Handle a Slowdown in Disk Read/Write Speed or Increased I/Os?",
"githuburl":""
},
{
"uri":"evs_faq_280905.html",
"node_id":"evs_faq_280905.xml",
"product_code":"evs",
"code":"165",
"des":"SymptomA 500 GiB ultra-high I/O disk had an I/O usage of 99.94%, but it only had 12,000 IOPS.Description100% disk I/O usage does not mean that the disk IOPS reaches the m",
"doc_type":"usermanual",
"kw":"Why My Disk's Read IOPS Can't Reach the Theoretical Maximum IOPS When the Disk I/O Usage Is Almost 1",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why My Disk's Read IOPS Can't Reach the Theoretical Maximum IOPS When the Disk I/O Usage Is Almost 100%?",
"githuburl":""
},
{
"uri":"evs_01_0084.html",
"node_id":"evs_01_0084.xml",
"product_code":"evs",
"code":"166",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Sharing",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Sharing",
"githuburl":""
},
{
"uri":"evs_faq_0039.html",
"node_id":"evs_faq_0039.xml",
"product_code":"evs",
"code":"167",
"des":"Yes.If you simply attach a shared disk to multiple servers, files cannot be shared among them. Because there are no mutually agreed data read/write rules among servers, r",
"doc_type":"usermanual",
"kw":"Do I Have to Deploy a Cluster to Use Shared Disks?,Sharing,Elastic Volume Service User Guide - Deuts",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Do I Have to Deploy a Cluster to Use Shared Disks?",
"githuburl":""
},
{
"uri":"evs_faq_0037.html",
"node_id":"evs_faq_0037.xml",
"product_code":"evs",
"code":"168",
"des":"A shared disk can be attached to up to 16 servers.",
"doc_type":"usermanual",
"kw":"How Many Servers Can I Attach a Shared Disk to?,Sharing,Elastic Volume Service User Guide - Deutsche",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Many Servers Can I Attach a Shared Disk to?",
"githuburl":""
},
{
"uri":"evs_faq_0038.html",
"node_id":"evs_faq_0038.xml",
"product_code":"evs",
"code":"169",
"des":"A shared disk can be attached to multiple servers on the console. You can choose to attach it to servers one by one or in a batch.For details, see Attaching an EVS Disk.",
"doc_type":"usermanual",
"kw":"How Can I Attach a Shared Disk to Multiple Servers?,Sharing,Elastic Volume Service User Guide - Deut",
"search_title":"",
"metedata":[
{
"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Can I Attach a Shared Disk to Multiple Servers?",
"githuburl":""
},
{
"uri":"evs_faq_0068.html",
"node_id":"evs_faq_0068.xml",
"product_code":"evs",
"code":"170",
"des":"No. A shared disk can only be attached to servers that belong to the same account and are in the same AZ.",
"doc_type":"usermanual",
"kw":"Can a Shared Disk Be Attached to Servers That Belong to Different Accounts?,Sharing,Elastic Volume S",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can a Shared Disk Be Attached to Servers That Belong to Different Accounts?",
"githuburl":""
},
{
"uri":"evs_faq_0083.html",
"node_id":"evs_faq_0083.xml",
"product_code":"evs",
"code":"171",
"des":"It is recommended that you do not attach a shared disk to both Linux and Windows servers.If you attach a shared disk to servers running different versions of the same OS ",
"doc_type":"usermanual",
"kw":"Can I Attach a Shared Disk to Servers Running Different OSs?,Sharing,Elastic Volume Service User Gui",
"search_title":"",
"metedata":[
{
"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Attach a Shared Disk to Servers Running Different OSs?",
"githuburl":""
},
{
"uri":"evs_faq_0098.html",
"node_id":"evs_faq_0098.xml",
"product_code":"evs",
"code":"172",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Backup",
"search_title":"",
"metedata":[
{
"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Backup",
"githuburl":""
},
{
"uri":"evs_faq_0097.html",
"node_id":"evs_faq_0097.xml",
"product_code":"evs",
"code":"173",
"des":"No. You can back up disks when the server is in use. When a server is running, data is written into disks on the server, and some newly generated data is cached in the se",
"doc_type":"usermanual",
"kw":"Do I Need to Stop the Server Before Performing a Disk Backup?,Backup,Elastic Volume Service User Gui",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Do I Need to Stop the Server Before Performing a Disk Backup?",
"githuburl":""
},
{
"uri":"evs_01_0039.html",
"node_id":"evs_01_0039.xml",
"product_code":"evs",
"code":"174",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Appendix",
"search_title":"",
"metedata":[
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"prodname":"evs",
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"IsBot":"Yes"
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],
"title":"Appendix",
"githuburl":""
},
{
"uri":"evs_01_0040.html",
"node_id":"evs_01_0040.xml",
"product_code":"evs",
"code":"175",
"des":"An EVS disk has several statuses. Table 1 lists EVS disk statuses, the meaning of each status, and the operations a disk in each status allows.Disk status detailsEVS Disk",
"doc_type":"usermanual",
"kw":"EVS Disk Status,Appendix,Elastic Volume Service User Guide - Deutsche Telekom - Switzerland Cloud - ",
"search_title":"",
"metedata":[
{
"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"EVS Disk Status",
"githuburl":""
},
{
"uri":"evs_01_0114.html",
"node_id":"evs_01_0114.xml",
"product_code":"evs",
"code":"176",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Change History,Elastic Volume Service User Guide - Deutsche Telekom - Switzerland Cloud - In Use",
"search_title":"",
"metedata":[
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"prodname":"evs",
"opensource":"false;true",
"documenttype":"usermanual",
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"IsBot":"Yes"
}
],
"title":"Change History",
"githuburl":""
},
{
"uri":"evs_01_0115.html",
"node_id":"evs_01_0115.xml",
"product_code":"evs",
"code":"177",
"des":"For details about the glossaries in this document, see Glossary.",
"doc_type":"usermanual",
"kw":"Glossary,Elastic Volume Service User Guide - Deutsche Telekom - Switzerland Cloud - In Use",
"search_title":"",
"metedata":[
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],
"title":"Glossary",
"githuburl":""
}
]
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