[
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Overview",
		"uri":"evs_01_0119.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"1"
	},
	{
		"desc":"Elastic Volume Service (EVS) offers scalable block storage for cloud servers. With high reliability, high performance, and rich specifications, EVS disks can be used for ",
		"product_code":"evs",
		"title":"What Is EVS?",
		"uri":"en-us_topic_0014580741.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"2"
	},
	{
		"desc":"EVS disks are classified based on the disk I/O performance. EVS disks differ in performance and price. Choose the disk type most appropriate for your applications.Common ",
		"product_code":"evs",
		"title":"Disk Types and Performance",
		"uri":"en-us_topic_0014580744.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"3"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"Device Types and Usage Instructions",
		"uri":"en-us_topic_0052554220.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"4"
	},
	{
		"desc":"Shared EVS disks are block storage devices that support concurrent read/write operations and can be attached to multiple servers. Shared EVS disks feature multiple attach",
		"product_code":"evs",
		"title":"Shared EVS Disks and Usage Instructions",
		"uri":"en-us_topic_0032860759.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"5"
	},
	{
		"desc":"In case your services require encryption for the data stored on EVS disks, EVS provides you with the encryption function. You can encrypt newly created EVS disks.EVS uses",
		"product_code":"evs",
		"title":"EVS Disk Encryption",
		"uri":"evs_01_0001.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"6"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"EVS Backup",
		"uri":"evs_01_0021.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"7"
	},
	{
		"desc":"EVS allows you to create snapshots for disks on the management console or by making API calls. An EVS snapshot is a complete copy or image of the disk data at a specific ",
		"product_code":"evs",
		"title":"EVS Snapshot",
		"uri":"en-us_topic_0066809008.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"8"
	},
	{
		"desc":"Both EVS disk backup and EVS snapshot provide redundancies for the EVS disk data to improve reliability. Table 1 lists the differences between them.",
		"product_code":"evs",
		"title":"Differences Between EVS Disk Backup and EVS Snapshot",
		"uri":"evs_01_0048.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"9"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"EVS Replication (Deprecated)",
		"uri":"evs_01_0020.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"10"
	},
	{
		"desc":"If you need to assign different permissions to employees in your enterprise to access your EVS resources, IAM is a good choice for fine-grained permissions management. IA",
		"product_code":"evs",
		"title":"Permissions Management",
		"uri":"evs_01_0086.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"11"
	},
	{
		"desc":"Figure 1 shows the relationships between EVS and other services.Relationships between EVS and other servicesECS: EVS disks can be attached to ECSs and used as scalable bl",
		"product_code":"evs",
		"title":"EVS and Other Services",
		"uri":"evs_01_0106.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"12"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Basic Concepts",
		"uri":"evs_01_0101.html",
		"doc_type":"usermanual",
		"p_code":"1",
		"code":"13"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"Region and AZ",
		"uri":"evs_01_0097.html",
		"doc_type":"usermanual",
		"p_code":"13",
		"code":"14"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Getting Started",
		"uri":"evs_01_0120.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"15"
	},
	{
		"desc":"Figure 1 shows the basic EVS operation procedure.Basic operation procedure",
		"product_code":"evs",
		"title":"Basic Operation Procedure",
		"uri":"evs_01_0057.html",
		"doc_type":"usermanual",
		"p_code":"15",
		"code":"16"
	},
	{
		"desc":"EVS disks can be used as system disks or data disks for servers.When a server is created, a system disk is automatically created and attached. You cannot create a system ",
		"product_code":"evs",
		"title":"Create an EVS Disk",
		"uri":"en-us_topic_0021738346.html",
		"doc_type":"usermanual",
		"p_code":"15",
		"code":"17"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Attach an EVS Disk",
		"uri":"evs_01_0107.html",
		"doc_type":"usermanual",
		"p_code":"15",
		"code":"18"
	},
	{
		"desc":"Independently 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 ",
		"product_code":"evs",
		"title":"Attaching a Non-Shared Disk",
		"uri":"evs_01_0036.html",
		"doc_type":"usermanual",
		"p_code":"18",
		"code":"19"
	},
	{
		"desc":"Independently 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 ",
		"product_code":"evs",
		"title":"Attaching a Shared Disk",
		"uri":"evs_01_0037.html",
		"doc_type":"usermanual",
		"p_code":"18",
		"code":"20"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Initialize an EVS Data Disk",
		"uri":"evs_01_0058.html",
		"doc_type":"usermanual",
		"p_code":"15",
		"code":"21"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"Introduction to Data Disk Initialization Scenarios and Partition Styles",
		"uri":"evs_01_0038.html",
		"doc_type":"usermanual",
		"p_code":"21",
		"code":"22"
	},
	{
		"desc":"This section uses Windows Server 2008 R2 Enterprise 64bit to describe how to initialize a data disk attached to a server running Windows.The maximum disk capacity support",
		"product_code":"evs",
		"title":"Initializing a Windows Data Disk (Windows Server 2008)",
		"uri":"evs_01_0108.html",
		"doc_type":"usermanual",
		"p_code":"21",
		"code":"23"
	},
	{
		"desc":"This section uses Windows Server 2016 Standard 64bit to describe how to initialize a data disk attached to a server running Windows.The maximum disk capacity supported by",
		"product_code":"evs",
		"title":"Initializing a Windows Data Disk (Windows Server 2016)",
		"uri":"evs_01_0045.html",
		"doc_type":"usermanual",
		"p_code":"21",
		"code":"24"
	},
	{
		"desc":"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 disk ",
		"product_code":"evs",
		"title":"Initializing a Linux Data Disk (fdisk)",
		"uri":"evs_01_0033.html",
		"doc_type":"usermanual",
		"p_code":"21",
		"code":"25"
	},
	{
		"desc":"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 disk",
		"product_code":"evs",
		"title":"Initializing a Linux Data Disk (parted)",
		"uri":"evs_01_0034.html",
		"doc_type":"usermanual",
		"p_code":"21",
		"code":"26"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Permissions Management",
		"uri":"evs_01_0087.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"27"
	},
	{
		"desc":"This chapter describes how to use IAM to implement fine-grained permissions control for your EVS resources. With IAM, you can:Create IAM users for employees based on your",
		"product_code":"evs",
		"title":"Creating a User and Granting EVS Permissions",
		"uri":"evs_01_0089.html",
		"doc_type":"usermanual",
		"p_code":"27",
		"code":"28"
	},
	{
		"desc":"Custom policies can be created to supplement the system-defined policies of EVS. For the actions supported for custom policies, see section \"Permissions Policies and Supp",
		"product_code":"evs",
		"title":"EVS Custom Policies",
		"uri":"evs_01_0090.html",
		"doc_type":"usermanual",
		"p_code":"27",
		"code":"29"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Disk Capacity Expansion",
		"uri":"evs_01_0059.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"30"
	},
	{
		"desc":"If the capacity of an existing disk is insufficient, you can expand the disk capacity to increase the storage space.Both system disks and data disks can be expanded. Curr",
		"product_code":"evs",
		"title":"Expansion Overview",
		"uri":"evs_01_0006.html",
		"doc_type":"usermanual",
		"p_code":"30",
		"code":"31"
	},
	{
		"desc":"This section describes how to expand the capacity of an In-use EVS disk on the management console. The In-use status indicates that the disk has been attached to a server",
		"product_code":"evs",
		"title":"Expanding Capacity for an In-use EVS Disk",
		"uri":"evs_01_0007.html",
		"doc_type":"usermanual",
		"p_code":"30",
		"code":"32"
	},
	{
		"desc":"This section describes how to expand the capacity of an Available EVS disk on the management console. The Available status indicates that the disk has not been attached t",
		"product_code":"evs",
		"title":"Expanding Capacity for an Available EVS Disk",
		"uri":"evs_01_0008.html",
		"doc_type":"usermanual",
		"p_code":"30",
		"code":"33"
	},
	{
		"desc":"After a disk has been expanded on the management console, the disk size is enlarged, but the additional space cannot be used directly.In Windows, you must allocate the ad",
		"product_code":"evs",
		"title":"Extending Disk Partitions and File Systems (Windows Server 2008)",
		"uri":"en-us_topic_0017616396.html",
		"doc_type":"usermanual",
		"p_code":"30",
		"code":"34"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Extending Disk Partitions and File Systems (Linux)",
		"uri":"evs_01_0094.html",
		"doc_type":"usermanual",
		"p_code":"30",
		"code":"35"
	},
	{
		"desc":"Before extending the disk partition and file system, you must check the disk partition style and file system format, and then select the appropriate operation accordingly",
		"product_code":"evs",
		"title":"Partition and File System Extension Preparations (Linux)",
		"uri":"evs_01_0035.html",
		"doc_type":"usermanual",
		"p_code":"35",
		"code":"36"
	},
	{
		"desc":"After a disk has been expanded on the management console, the disk size is enlarged, but the additional space cannot be used directly.In Linux, you must allocate the addi",
		"product_code":"evs",
		"title":"Extending Partitions and File Systems for System Disks (Linux)",
		"uri":"evs_01_0072.html",
		"doc_type":"usermanual",
		"p_code":"35",
		"code":"37"
	},
	{
		"desc":"After a disk has been expanded on the management console, the disk size is enlarged, but the additional space cannot be used directly.In Linux, you must allocate the addi",
		"product_code":"evs",
		"title":"Extending Partitions and File Systems for Data Disks (Linux)",
		"uri":"evs_01_0109.html",
		"doc_type":"usermanual",
		"p_code":"35",
		"code":"38"
	},
	{
		"desc":"After a disk has been expanded on the management console, the disk size is enlarged, but the additional space cannot be used directly.In Linux, you must allocate the addi",
		"product_code":"evs",
		"title":"Extending Partitions and File Systems for SCSI Disks (Linux)",
		"uri":"evs_01_0018.html",
		"doc_type":"usermanual",
		"p_code":"35",
		"code":"39"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Detaching an EVS Disk",
		"uri":"evs_01_0002.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"40"
	},
	{
		"desc":"A system disk can only be detached offline, that is, its server must be in the Stopped state before the system disk is detached. Therefore, you need to first stop the ser",
		"product_code":"evs",
		"title":"Detaching a System Disk",
		"uri":"evs_01_0003.html",
		"doc_type":"usermanual",
		"p_code":"40",
		"code":"41"
	},
	{
		"desc":"Data disks can be detached online or offline, which means that the server containing the to-be-detached data disk can either be in the Running or Stopped state.ECSDetach ",
		"product_code":"evs",
		"title":"Detaching a Data Disk",
		"uri":"evs_01_0004.html",
		"doc_type":"usermanual",
		"p_code":"40",
		"code":"42"
	},
	{
		"desc":"If an EVS disk is no longer used, you can release the virtual resources by deleting the disk from the system.Before deleting a disk, ensure that the disk status is Availa",
		"product_code":"evs",
		"title":"Deleting an EVS Disk",
		"uri":"evs_01_0005.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"43"
	},
	{
		"desc":"The encryption function can be used to encrypt system disks, data disks, backups and snapshots. The details are as follows:System disk encryption relates to the image tha",
		"product_code":"evs",
		"title":"Managing an Encrypted EVS Disk",
		"uri":"evs_01_0009.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"44"
	},
	{
		"desc":"You can create shared VBD disks or shared SCSI disks. It is recommended that you attach the shared disk to the ECSs in the same ECS group to improve service reliability.S",
		"product_code":"evs",
		"title":"Managing a Shared EVS Disk",
		"uri":"evs_01_0010.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"45"
	},
	{
		"desc":"EVS disk backups are created using the CBR service. For details, see Creating a Disk Backup Vault in the Cloud Backup and Recovery User Guide.This section describes how t",
		"product_code":"evs",
		"title":"Managing EVS Backup",
		"uri":"evs_01_0110.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"46"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Managing Snapshots",
		"uri":"evs_01_0111.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"47"
	},
	{
		"desc":"EVS allows you to create snapshots for disks on the management console or by making API calls. An EVS snapshot is a complete copy or image of the disk data at a specific ",
		"product_code":"evs",
		"title":"Snapshot Overview",
		"uri":"evs_01_0098.html",
		"doc_type":"usermanual",
		"p_code":"47",
		"code":"48"
	},
	{
		"desc":"You can create an EVS snapshot on the management console to save the EVS disk data at a specific time point.A maximum of 7 snapshots can be created for one disk.Snapshots",
		"product_code":"evs",
		"title":"Creating a Snapshot",
		"uri":"en-us_topic_0066615262.html",
		"doc_type":"usermanual",
		"p_code":"47",
		"code":"49"
	},
	{
		"desc":"If a snapshot is no longer needed, you can delete the snapshot to release the virtual resources. Snapshot deletion has the following constraints:The snapshot status must ",
		"product_code":"evs",
		"title":"Deleting a Snapshot",
		"uri":"evs_01_0011.html",
		"doc_type":"usermanual",
		"p_code":"47",
		"code":"50"
	},
	{
		"desc":"If the data on an EVS disk is incorrect or damaged, you can roll back the data from a snapshot to the source disk to restore data. Snapshot rollback has the following con",
		"product_code":"evs",
		"title":"Rolling Back Data from a Snapshot",
		"uri":"evs_01_0012.html",
		"doc_type":"usermanual",
		"p_code":"47",
		"code":"51"
	},
	{
		"desc":"This section describes how to create an EVS disk on the Snapshots page. Besides, you can also create an EVS disk from a snapshot by specifying the Create from snapshot pa",
		"product_code":"evs",
		"title":"Creating an EVS Disk from a Snapshot",
		"uri":"evs_01_0013.html",
		"doc_type":"usermanual",
		"p_code":"47",
		"code":"52"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Managing EVS Replication (Deprecated)",
		"uri":"evs_01_0023.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"53"
	},
	{
		"desc":"For the EVS replication concepts, see EVS Replication (Deprecated). This chapter describes the basic functions and operations of EVS replication. Figure 1 shows the opera",
		"product_code":"evs",
		"title":"EVS Replication Operation Procedure (Deprecated)",
		"uri":"evs_01_0060.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"54"
	},
	{
		"desc":"Before you create an EVS replication pair, create a DR ECS in the secondary AZ for the production ECS. The DR ECS parameters must be consistent with those of the producti",
		"product_code":"evs",
		"title":"Creating a DR ECS (Deprecated)",
		"uri":"evs_01_0024.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"55"
	},
	{
		"desc":"Before you use EVS replication, bind a virtual IP address to the production server and DR server, respectively. Then configure the virtual IP address as the static IP add",
		"product_code":"evs",
		"title":"Configuring a Virtual IP Address for the Server (Deprecated)",
		"uri":"evs_01_0026.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"56"
	},
	{
		"desc":"This section is used to guide users to collect the production ECS and DR ECS information, including the ECS IDs and the IDs of the EVS disks attached the ECSs.Two EVS dis",
		"product_code":"evs",
		"title":"Collecting ECS Information (Deprecated)",
		"uri":"evs_01_0025.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"57"
	},
	{
		"desc":"Currently, users need to make API calls to create EVS replication pairs. Each server can have multiple EVS replication pairs. For details, see EVS Replication Pair in the",
		"product_code":"evs",
		"title":"Creating an EVS Replication Pair (Deprecated)",
		"uri":"evs_01_0027.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"58"
	},
	{
		"desc":"Currently, users need to make API calls to create replication consistency groups and add EVS replication pairs to the groups. For details, see Replication Consistency Gro",
		"product_code":"evs",
		"title":"Creating a Replication Consistency Group (Deprecated)",
		"uri":"evs_01_0028.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"59"
	},
	{
		"desc":"Currently, EVS replication pairs can be added to or removed from replication consistency groups through APIs only. For details, see Updating a Replication Consistency Gro",
		"product_code":"evs",
		"title":"Updating a Replication Consistency Group (Deprecated)",
		"uri":"evs_01_0029.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"60"
	},
	{
		"desc":"Production servers and production disks belong to the primary AZ, and DR servers and DR disks belong to the secondary AZ. Users can make API calls to perform a planned mi",
		"product_code":"evs",
		"title":"Planned Migration (Deprecated)",
		"uri":"evs_01_0030.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"61"
	},
	{
		"desc":"When the production servers and disks in the primary AZ become faulty due to force majeure, users can make API calls to perform a failover for the replication consistency",
		"product_code":"evs",
		"title":"Failover (Deprecated)",
		"uri":"evs_01_0031.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"62"
	},
	{
		"desc":"When the production servers and disks in the primary AZ become faulty due to force majeure and a failover has been performed, enable the DR servers and disks to provide s",
		"product_code":"evs",
		"title":"Reprotection (Deprecated)",
		"uri":"evs_01_0032.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"63"
	},
	{
		"desc":"Users can make an API call to expand the EVS disks in one or multiple EVS replication pairs of a replication consistency group. In such an expansion operation, two EVS di",
		"product_code":"evs",
		"title":"Expanding EVS Disks in a Replication Consistency Group (Deprecated)",
		"uri":"evs_01_0043.html",
		"doc_type":"usermanual",
		"p_code":"53",
		"code":"64"
	},
	{
		"desc":"Through EVS disk transfer, EVS disks can be transferred from one account to another. After the transfer succeeds, the ownerships of the EVS disks belong to the target acc",
		"product_code":"evs",
		"title":"Managing EVS Disk Transfer",
		"uri":"evs_01_0042.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"65"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Managing a Tag",
		"uri":"evs_01_0112.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"66"
	},
	{
		"desc":"Tags identify EVS resources for purposes of easy categorization and quick search.",
		"product_code":"evs",
		"title":"Tag Overview",
		"uri":"evs_01_0099.html",
		"doc_type":"usermanual",
		"p_code":"66",
		"code":"67"
	},
	{
		"desc":"This section is used to guide users to add a tag for an existing EVS disk. You can also add tags during the EVS disk creation. For details, see Create an EVS Disk.Tags ar",
		"product_code":"evs",
		"title":"Adding a Tag",
		"uri":"evs_01_0014.html",
		"doc_type":"usermanual",
		"p_code":"66",
		"code":"68"
	},
	{
		"desc":"You can change the value of a tag for an existing disk, but cannot change the key of a tag.The disk list page is displayed.The disk details page is displayed.The Edit Tag",
		"product_code":"evs",
		"title":"Modifying a Tag",
		"uri":"evs_01_0015.html",
		"doc_type":"usermanual",
		"p_code":"66",
		"code":"69"
	},
	{
		"desc":"If an existing tag is no longer needed, you can delete it.The disk list page is displayed.The disk details page is displayed.The Delete Tag page is displayed.Return to th",
		"product_code":"evs",
		"title":"Deleting a Tag",
		"uri":"evs_01_0016.html",
		"doc_type":"usermanual",
		"p_code":"66",
		"code":"70"
	},
	{
		"desc":"Tags can be used to categorize EVS disks, and users can quickly search for their desired EVS disks by tags. This section is used to guide users to search for EVS disk by ",
		"product_code":"evs",
		"title":"Searching Disks by Tags",
		"uri":"evs_01_0019.html",
		"doc_type":"usermanual",
		"p_code":"66",
		"code":"71"
	},
	{
		"desc":"This section describes monitored metrics reported by EVS to Cloud Eye as well as their namespaces and dimensions. You can use console or APIs provided by Cloud Eye to que",
		"product_code":"evs",
		"title":"Viewing EVS Monitoring Data",
		"uri":"evs_01_0044.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"72"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"FAQ",
		"uri":"evs_faq_0001.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"73"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"General",
		"uri":"evs_01_0081.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"74"
	},
	{
		"desc":"No.EVS disks must be attached to servers before you can use them.",
		"product_code":"evs",
		"title":"Can EVS Disks Be Used Alone?",
		"uri":"evs_faq_0054.html",
		"doc_type":"usermanual",
		"p_code":"74",
		"code":"75"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Can I Change the AZ of My Disk?",
		"uri":"evs_faq_0048.html",
		"doc_type":"usermanual",
		"p_code":"74",
		"code":"76"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"What Should I Do If an Error Occurs on My EVS Disk?",
		"uri":"evs_faq_0014.html",
		"doc_type":"usermanual",
		"p_code":"74",
		"code":"77"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"Why Do Some of My EVS Disks Not Have WWN Information?",
		"uri":"evs_faq_0021.html",
		"doc_type":"usermanual",
		"p_code":"74",
		"code":"78"
	},
	{
		"desc":"If the system displays a message indicating insufficient quota during an EVS replication pair creation or a replication consistency group creation or update, contact the ",
		"product_code":"evs",
		"title":"What Should I Do If My EVS Replication Quotas Are Insufficient? (Deprecated)",
		"uri":"evs_faq_0020.html",
		"doc_type":"usermanual",
		"p_code":"74",
		"code":"79"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Capacity Expansion",
		"uri":"evs_01_0077.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"80"
	},
	{
		"desc":"No. The disk capacity can only be expanded, and temporary capacity expansion is not supported.",
		"product_code":"evs",
		"title":"Can I Reduce or Temporarily Expand the Disk Capacity?",
		"uri":"evs_faq_0026.html",
		"doc_type":"usermanual",
		"p_code":"80",
		"code":"81"
	},
	{
		"desc":"An EVS disk can be expanded either in the Available or In-use state. Expanding the disk capacity on the management console enlarges the disk capacity, but you still need ",
		"product_code":"evs",
		"title":"Do I Need to Restart the Server After Expanding the Disk Capacity?",
		"uri":"evs_faq_0042.html",
		"doc_type":"usermanual",
		"p_code":"80",
		"code":"82"
	},
	{
		"desc":"An expansion consists of two phases:Expand the disk capacity on the management console.A shared, in-use disk cannot be expanded. You must detach the shared disk from all ",
		"product_code":"evs",
		"title":"Do I Need to Detach an EVS Disk Before Expanding Its Capacity?",
		"uri":"evs_faq_0028.html",
		"doc_type":"usermanual",
		"p_code":"80",
		"code":"83"
	},
	{
		"desc":"An EVS system disk can be as large as 1 TB (1024 GB). You can expand the capacity of a system disk to up to 1 TB.An EVS data disk can be as large as 32 TB (32768 GB).With",
		"product_code":"evs",
		"title":"What Should I Do If My Disk Capacity Exceeds 2 TB After Expansion?",
		"uri":"evs_faq_0024.html",
		"doc_type":"usermanual",
		"p_code":"80",
		"code":"84"
	},
	{
		"desc":"After expanding disk capacity on the management console, you must log in to the server and extend the disk partition and file system for the extra capacity to become avai",
		"product_code":"evs",
		"title":"Why Did My Disk Capacity Remain Unchanged on the Server After Capacity Expansion?",
		"uri":"evs_faq_0027.html",
		"doc_type":"usermanual",
		"p_code":"80",
		"code":"85"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Attachment",
		"uri":"evs_01_0078.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"86"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"Can I Attach a Disk to Multiple Servers?",
		"uri":"evs_faq_0006.html",
		"doc_type":"usermanual",
		"p_code":"86",
		"code":"87"
	},
	{
		"desc":"No.Disks and the servers you attach the disks to must be in the same AZ. The same is true for shared disks. Shared disks can only be attached to the servers in the same A",
		"product_code":"evs",
		"title":"Can I Attach a Disk to a Server in Another AZ?",
		"uri":"evs_faq_0036.html",
		"doc_type":"usermanual",
		"p_code":"86",
		"code":"88"
	},
	{
		"desc":"Symptom: A data disk has been attached to a Windows server on the management console, but the disk cannot be viewed on the server. For example, Volume (D:) was not shown ",
		"product_code":"evs",
		"title":"Why Can't I View the Attached Data Disk on the Server?",
		"uri":"evs_faq_0022.html",
		"doc_type":"usermanual",
		"p_code":"86",
		"code":"89"
	},
	{
		"desc":"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",
		"product_code":"evs",
		"title":"How Can I Add a Data Disk to an Existing Server?",
		"uri":"evs_faq_0043.html",
		"doc_type":"usermanual",
		"p_code":"86",
		"code":"90"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Detachment",
		"uri":"evs_01_0079.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"91"
	},
	{
		"desc":"It depends on if the disk is encrypted or not.EncryptedCMK is disabled or scheduled for deletion.Before you detach an EVS disk encrypted by a CMK, check whether the CMK i",
		"product_code":"evs",
		"title":"If I Detach a Disk Will I Lose the Data on My Disk?",
		"uri":"evs_faq_0012.html",
		"doc_type":"usermanual",
		"p_code":"91",
		"code":"92"
	},
	{
		"desc":"EVS disks can be used as system disks or data disks, but the way you detach each one is different.System disks: A system disk can only be detached offline. You must first",
		"product_code":"evs",
		"title":"Why Can't I Detach My Disk?",
		"uri":"evs_faq_0056.html",
		"doc_type":"usermanual",
		"p_code":"91",
		"code":"93"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Capacity",
		"uri":"evs_01_0082.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"94"
	},
	{
		"desc":"The maximum capacity supported for a system disk is 1024 GB.The maximum capacity supported for a data disk is 32768 GB.",
		"product_code":"evs",
		"title":"What Is the Maximum Capacity Supported for the System and Data Disks?",
		"uri":"evs_faq_0031.html",
		"doc_type":"usermanual",
		"p_code":"94",
		"code":"95"
	},
	{
		"desc":"If your disk space starts to fill up, you can:Create a new disk and attach it to the server.Expand the capacity of the existing disk. Both system disks and data disks can",
		"product_code":"evs",
		"title":"What Should I Do If My Disk Starts to Run Out of Space?",
		"uri":"evs_faq_0032.html",
		"doc_type":"usermanual",
		"p_code":"94",
		"code":"96"
	},
	{
		"desc":"If your disk capacity is greater than 2 TB, do not use fdisk to partition the disk. Or any space in excess of 2 TB will be unable to be displayed after the disk is partit",
		"product_code":"evs",
		"title":"What Should I Do If I Use fdisk to Initialize a Disk Larger Than 2 TB and Then the Space in Excess of 2 TB Cannot Be Displayed?",
		"uri":"evs_faq_0035.html",
		"doc_type":"usermanual",
		"p_code":"94",
		"code":"97"
	},
	{
		"desc":"You can view your disk usages in either of the following ways:Install Agent to View Disk UsageView disk usages manually.The details depend on the OS. This FAQ uses Window",
		"product_code":"evs",
		"title":"How Can I View My Disk Usage?",
		"uri":"evs_faq_0053.html",
		"doc_type":"usermanual",
		"p_code":"94",
		"code":"98"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Sharing",
		"uri":"evs_01_0084.html",
		"doc_type":"usermanual",
		"p_code":"73",
		"code":"99"
	},
	{
		"desc":"Yes.If you simply attach a shared disk to multiple servers, files cannot be shared between the servers. If the rules for reading and writing data are not mutually agreed ",
		"product_code":"evs",
		"title":"Do I Have to Deploy a Cluster to Use Shared Disks?",
		"uri":"evs_faq_0039.html",
		"doc_type":"usermanual",
		"p_code":"99",
		"code":"100"
	},
	{
		"desc":"A shared disk can be attached to up to 16 servers.",
		"product_code":"evs",
		"title":"How Many Servers Can I Attach a Shared Disk to?",
		"uri":"evs_faq_0037.html",
		"doc_type":"usermanual",
		"p_code":"99",
		"code":"101"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Appendix",
		"uri":"evs_01_0039.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"102"
	},
	{
		"desc":"An EVS disk has several statuses. Table 1 lists the EVS disk statuses, the meaning of each status, and the operations a disk in each status allows.Disk status detailsEVS ",
		"product_code":"evs",
		"title":"EVS Disk Status",
		"uri":"evs_01_0040.html",
		"doc_type":"usermanual",
		"p_code":"102",
		"code":"103"
	},
	{
		"desc":"An EVS snapshot has several statuses. Table 1 lists the EVS snapshot statuses, the meaning of each status, and the operations a snapshot in each status allows.Snapshot st",
		"product_code":"evs",
		"title":"EVS Snapshot Status",
		"uri":"evs_01_0041.html",
		"doc_type":"usermanual",
		"p_code":"102",
		"code":"104"
	},
	{
		"desc":"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.",
		"product_code":"evs",
		"title":"Change History",
		"uri":"evs_01_0114.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"105"
	},
	{
		"desc":"For details about the terms involved in this document, see Glossary.",
		"product_code":"evs",
		"title":"Glossary",
		"uri":"evs_01_0115.html",
		"doc_type":"usermanual",
		"p_code":"",
		"code":"106"
	}
]