# Change History

Released On | Description
--- | ---

2022-01-10

Modified the following content:

Added "Maximum NICs" in the following sections:

- General-Purpose ECSs
- Dedicated General-Purpose ECSs
- Memory-optimized ECSs
- GPU-accelerated ECSs

2021-12-30

Modified the following content:

- Deleted the description that the Windows Server OS supports BYOL in License Type.
- Added a note for the ECS name Step 3: Configure Advanced Settings.

2021-11-20

Added the following content:

Can ECSs Automatically Recover After the Physical Host Accommodating the ECSs Becomes Faulty?

Modified the following content:

- Added image encryption and system disk encryption in User Encryption.
- Added description that ECSs can be created from encrypted images in ECS and Other Services.
- Added description that the system disk can be encrypted during ECS creation in Step 1: Configure Basic Settings.
- Added description that the system disk can be encrypted during OS reinstallation in Reinstalling the OS.
- Added description that the system disk can be encrypted during OS change in Changing the OS.

2021-10-20 | Optimized descriptions in Step 1: Configure Basic Settings.

2021-09-10

- Modified the following content:
  - Deleted description about Xen ECSs.
- Deleted the following sections:
  - Changing a General-Purpose ECS to an H1 ECS
  - Changing a Xen ECS to a KVM ECS (Windows)
  - Automatically Changing a Xen ECS to a KVM ECS (Linux)
  - Manually Changing a Xen ECS to a KVM ECS (Linux)

2021-08-09

Modified the following content:

- Added P2s ECSs in GPU-accelerated ECSs.
- Added the URL for downloading the CUDA toolkit for P2s ECSs in Obtaining a Tesla Driver and CUDA Toolkit.

2021-08-02 | Modified the following content: Deleted descriptions about Marketplace images from Images and Step 1: Configure Basic Settings.
2021-04-23 | Added the following content: Added How Do I Configure atop and kdump on Linux ECSs for Performance Analysis?.

2020-11-12

Modified the following content:

- Changed CSBS to CBR in ECS and Other Services.
- Added CBR to back up ECS data in Step 3: Configure Advanced Settings.
- Added CBR to back up ECS data in CBR.
- Added description in notes in Migrating an ECS, indicating that CBR backups are not affected by cold migrations.
- Added a solution of using CBR in Why Does It Take Longer to Create ECSs When I Use a Full-ECS Image?

2020-10-09 | Added the following content: Added the Windows Server 2019 Standard 64bit and Oracle Linux 7.6 64bit OSs supported by P2v ECSs in GPU-accelerated ECSs.

2020-09-08

Added the following content:

- Added PI2 ECSs in GPU-accelerated ECSs.

Modified the following content:

- Added CPU information for KVM ECSs in ECS Specifications.
- Terminated Windows OSs from the OSs supported by E1 and E2 ECSs in Large-Memory ECSs.
- Modified Basic ECS Metrics because the monitoring metric System Status Check Failed has been terminated.

2020-06-08 | Modified the following content: Added the procedure for changing the OS keyboard language in What Should I Do If I Cannot Use the German Keyboard to Enter Characters When I Log In to a Linux ECS Using VNC?

2020-04-22

Modified the following content:

- Added m2.4xlarge.8 in Memory-optimized ECSs.

2020-03-30

Added the following content:

- Added GPU Driver to describe GRID and Tesla drivers.

Modified the following content:

- Optimized the operations for installing a Tesla driver and CUDA toolkit in Installing a Tesla Driver and CUDA Toolkit on a GPU-accelerated ECS.
- Terminated the sections of installing a NVIDIA GPU driver and CUDA toolkit on P1, P2, and P2v ECSs and added Installing a Tesla Driver and CUDA Toolkit on a GPU-accelerated ECS for installation.

2019-12-26

Added the following content:

- Added C4 series in Dedicated General-Purpose ECSs.
- Added M4 series in Memory-optimized ECSs.
- Added newly released E3 ECSs in Large-Memory ECSs.
- Added G6 ECSs in GPU-accelerated ECSs.
- Added P2v ECSs in GPU-accelerated ECSs.
- Added Installing a Tesla Driver and CUDA Toolkit on a GPU-accelerated ECS.

Modified the following content:

- Changing a Xen ECS to a KVM ECS (Windows)

2019-03-13

Modified the following content:

- Deleted E3 ECSs in Large-Memory ECSs because they have been terminated.
- Deleted "FPGA-accelerated ECSs" because such ECSs have been terminated.

2019-03-06

Modified the following content:

- Deleted metadata types that are not supported in Obtaining Metadata.
- Added use restrictions in Passing User Data to ECSs.

2019-03-05

Deleted the following content:

- Deleted FAQ "Why Are Certain Flavor Quotas Separately Displayed on the Quota Page?"
- Deleted description of separately displayed quotas in Quota Adjustment.

2019-03-04

Modified the following content:

- Modified the figure for ECS login modes in Logging In to an ECS.
- Modified the flowchart in sections "Changing a Xen ECS to a KVM ECS (Windows)" and "Automatically Changing a Xen ECS to a KVM ECS (Linux)".

2019-02-25

Modified the following content:

- Adjusted the format of information display for the step "(Optional) Select the check box to confirm the ECS configuration" in General Operations for Modifying Specifications.

2019-02-22

Modified the following content:

- Added operation limitations after the ECS state changes from Creating to Running in Creating an ECS.

2019-02-18

Added the following content:

- How Can I Attach a Snapshot-based System Disk to an ECS as Its Data Disk?

Modified the following content:

- Why Are Certain Flavor Quotas Separately Displayed on the Quota Page?
- Changed the ECS types that support changing from Xen to KVM in "Changing a Xen ECS to a KVM ECS (Windows)".
- Changed the ECS types that support changing from Xen to KVM and the command for downloading the driver installation script in "Automatically Changing a Xen ECS to a KVM ECS (Linux)".
- Added description about the impact on ECS backups and IDs after a cold migration in Migrating an ECS.
- Added the information that OTC Tools has been installed for public images in Basic ECS Metrics.

2019-02-13 | Modified the following content: Added EulerOS and SUSE 11 to the OSs that support automatic script operations in "Automatically Changing a Xen ECS to a KVM ECS (Linux)".

2019-02-12

Modified the following content:

- Changed the URL for downloading the PV driver and UVP VMTools in "Changing a Xen ECS to a KVM ECS (Windows)".
- Changed the URL for downloading the script in "Automatically Changing a Xen ECS to a KVM ECS (Linux)".

2019-02-03

Modified the following content:

- Moved C3 ECSs to Dedicated General-Purpose ECSs.

2019-01-30

Added the following content:

- Added the FPGA-accelerated ECS type.
- Added Migrating an ECS.

Modified the following content:

- Changed monitoring metric names in Basic ECS Metrics.

Deleted the following content:

- Terminated T series of general computing-basic ECSs.

2018-12-30

Added the following content:

- Added newly released T series of general computing-basic ECSs.

Modified the following content:

- Added newly released E3 ECSs in Large-Memory ECSs.
- Modified description in "Confirm Order" of Creating an ECS.
- Modified the Agency description in Creating an ECS.
- Modified order confirmation operations in Creating an ECS.

2018-12-22

Modified the following content:

- Added DeH parameter description in Creating an ECS.
- Modified the flowchart and follow-up operations in "Changing a Xen ECS to a KVM ECS (Windows)".
- Modified the flowchart and follow-up operations in "Automatically Changing a Xen ECS to a KVM ECS (Linux)".
- Added UVP in Glossary.

2018-12-12

Modified the following content:

- Added description in GPU-accelerated ECSs because P1 and P2 ECSs do not support automatic recovery.
- (Optional) Configuring Mapping Between Hostnames and IP Addresses
- Installing a NVIDIA GPU Driver and CUDA Toolkit on a P1 ECS
- Installing a NVIDIA GPU Driver and CUDA Toolkit on a P2 ECS

2018-12-10

Added the following content:

- Changing a Xen ECS to a KVM ECS (Windows)
- Automatically Changing a Xen ECS to a KVM ECS (Linux)

Modified the following content:

- Adjusted the structure of the document.
- Modified the procedure for creating an ECS in Getting Started.

2018-11-22

KVM ECSs support automatic recovery.

Added the following content:

- Automatically Recovering ECSs

Modified the following content:

- Creating an ECS

2018-10-29

Added the following content:

- Why Are Certain Flavor Quotas Separately Displayed on the Quota Page?

2018-09-30

Modified the following content:

- Updated supported images in Enabling NIC Multi-Queue.

2018-09-22

Modified the following content:

- Optimized descriptions in Can I Attach Multiple Disks to an ECS?

2018-08-31 | Accepted in OTC 3.2.

2018-08-17

Added the following content:

- Quota Adjustment

Modified the following content:

- Added newly released E3 ECSs in ECS Types and Large-Memory ECSs.
- Modified description in Can I Attach Multiple Disks to an ECS?, allowing an ECS to have up to 60 attached disks.
- Added the procedure for restarting the ECS in How Can I Enable Virtual Memory on a Windows ECS?

2018-07-31

Added the following content:

- Changing the Login Password on an ECS
- Enabling Advanced Disk
- What Should I Do If Cloud-Init Does Not Work After Python Is Upgraded?
- Why Does the System Display Error Code 0x112f When I Log In to a Windows ECS?
- How Can I Enable Virtual Memory on a Windows ECS?

Modified the following content:

- Modified description in Large-Memory ECSs, Disk-intensive ECSs, and Can I Attach Multiple Disks to an ECS?, allowing an ECS to have up to 60 attached disks.
- Modified description in Overview, allowing the tags added during ECS creation to be automatically added to the created EIP and EVS disks.
- Modified description in CBR and Why Does It Take Longer to Create ECSs When I Use a Full-ECS Image? to support full-ECS images.

2018-07-03

Modified the following content:

- Added the rules for the device names of the disks mounted to a disk-intensive ECS in Attaching an EVS Disk to an ECS.

2018-07-01

Added the following content:

- CTS
- How Can I Test Network Performance?
- Why Does an Authentication Failure Occurs After I Attempt to Remotely Log In to a Windows ECS?

Modified the following content:

- Allowed to export certain ECSs in Exporting ECS Information.
- Modified prerequisites in Changing the OS, allowing you to change the OS of an ECS on which reinstalling the OS failed.
- Modified description in Changing a Security Group, allowing you to change the security group in the Operation column.

2018-06-30 | Accepted in OTC 3.1.

2018-06-29

Modified the following content:

- Terminated the full-ECS image function.
- Terminated FPGA-accelerated ECSs.

2018-06-22 | Modified Elastic Cloud Server User Guide 38 according to review comments.

2018-06-14

Added the following content:

- Allowed to create ECSs using full-ECS images.

Modified the following content:

- Added description in Disk-intensive ECSs because D2 ECSs do not support automatic recovery.

2018-06-01

Modified the following content:

- Modified FPGA-accelerated ECS specifications.
- Deleted the DSS information.

2018-05-23

Modified the following content:

- Modified the specifications and functions of FPGA-accelerated ECSs.
- Modified the overview, specifications, and functions of D2 ECSs as well as notes on using them in Disk-intensive ECSs.
- Modified the description of automatic recovery.
- Added the description of viewing details about failed tasks in Viewing Failures.
- Added the FPGA, HDK, SDK, AEI, and DPDK terms in Glossary.
- Modified the functions of and notes on using P2 ECSs in GPU-accelerated ECSs.
- Added the OSs supported by P2 ECSs in installing a NVIDIA GPU driver and CUDA toolkit on the P2 ECSs.
- Replaced screenshots in How Do I Obtain My Disk Name in the ECS OS Using the Device Identifier Provided on the Console?

2018-04-28

Added the following content:

- Added newly released FPGA-accelerated ECSs.
- Installing a NVIDIA GPU Driver and CUDA Toolkit on a P2 ECS
- Viewing Failures

Modified the following content:

- Added newly released D2 ECSs in Disk-intensive ECSs.
- Added newly released P2 ECSs in GPU-accelerated ECSs.
- Modified description in General Operations for Modifying Specifications, allowing you to check whether specifications have been modified.
- Added description in "Automatically Recovering ECSs", allowing KVM ECSs to support automatic recovery.

2018-03-30

Added the following content:

- Added the mapping between device names and disks in How Do I Obtain My Disk Name in the ECS OS Using the Device Identifier Provided on the Console?

2018-02-07 | Accepted in OTC 3.0.

2018-02-03

Added the following content:

- 6.7.2-Changing a General-Purpose ECS to an H1 ECS
- Installing a NVIDIA GPU Driver and CUDA Toolkit on a P1 ECS
- What Can I Do If Switching from a Non-root User to User root Times Out?
- Why Is the Memory of an ECS Obtained by Running the free Command Inconsistent with the Actual Memory?

Modified the following content:

- Modified the document structure.
- Allowed to modify specifications between general-purpose (S1, C1, C2, or M1) ECSs and H1 ECSs in General Operations for Modifying Specifications.
- Updated the description and screenshots for selecting ECS types during ECS creation because the GUI has been modified.
- Modified description in Can I Attach Multiple Disks to an ECS?, allowing you to attach up to 60 EVS disks to an ECS.
- Modified default configurations during ECS creation in Overview. Specifically, no built-in tags will be created for an ECS by default.
- Added "Follow-up Procedure" in General Operations for Modifying Specifications.

2018-01-26

Modified the following content:

- Updated certain screenshots in this document.
- Added notes on using M3 ECSs.

2018-01-19

Modified the following content:

- Why Does the System Display a Question Mark When I Attempt to Obtain Console Logs?

2017-12-30

Added the following content:

- How Can I Rectify the Fault That May Occur on a Linux ECS with an NVMe SSD Disk Attached?
- Why Does the System Display a Question Mark When I Attempt to Obtain Console Logs?

Modified the following content:

- Modified notes in Enabling NIC Multi-Queue.
- Added C3, M3, and P1 ECSs in ECS Types.
- Added the function of creating a disk using DSS resources.

2017-10-27

Modified the following content:

- Added computing I, computing II, and memory-optimized first-generation ECS types into the general-purpose ECS type in ECS Types.

2017-10-18

Modified the following content:

- Changed the OSs supported by H2 and HL1 ECSs in High-Performance Computing ECSs.

2017-10-06

Modified the following content:

- Added constraints on detaching an EVS disk from a running Windows ECS in Detaching an EVS Disk from a Running ECS.

2017-09-30

Added the following content:

- (Optional) Configuring Mapping Between Hostnames and IP Addresses
- How Can I Adjust System Disk Partitions?
- How Can I Add the Empty Partition of an Expanded System Disk to the End Root Partition Online?
- How Can I Add the Empty Partition of an Expanded System Disk to the Non-end Root Partition Online?
- Which ECSs Can Be Attached with SCSI EVS Disks?

Modified the following content:

- Added S2 ECSs in General-Purpose ECSs.
- Added EVS disk device types in EVS Disks.
- Modified description in Reinstalling the OS and Changing the OS, allowing you to inject user data during ECS OS reinstallation or change.
- Modified the description of managing virtual IP addresses in General Operations for Modifying Specifications.
- Allowed attaching up to 24 EVS disks to an ECS in Can I Attach Multiple Disks to an ECS?

2017-09-18

Modified the following content:

- Modified the overview, functions, and notes on using HL1 ECSs in High-Performance Computing ECSs.
- Modified notes in "Automatically Recovering ECSs".
- Added notes on using tools, such as ibstat in How Can I Check Whether the Network Communication Is Normal Between Two ECSs Equipped with an InfiniBand NIC Driver?

2017-09-06

Modified the following content:

- Modified key description and added an image for the encryption process in User Encryption.
- Added the official website for downloading TightVNC in Login Overview.
- Added examples for configuring routing policies in Can I Bind Multiple EIPs to an ECS?
- Added description in Will NICs Added to an ECS Start Automatically?, indicating that only the NICs added to an ECS running the CentOS 7.0 OS requires manual activation.
- What Should I Do If I Cannot Use the German Keyboard to Enter Characters When I Log In to a Linux ECS Using VNC?

2017-08-22

Added the following content:

- Added automatic recovery.

Modified the following content:

- Modified description, indicating that SCSI EVS disks cannot be added during ECS creation.

- Deleted the description of exporting the ECS list.
- Changed the KVM ECS types to H2, M2, and HL1.
- Confirmed and modified all issues in this document.

2017-08-11

Added the following content:

- Supported the multi-project function in Project.

2017-06-07

Modified the following content:

- Modified notes on using H2 ECSs in High-Performance Computing ECSs.

2017-06-05

Modified the following content:

- Added the description of built-in tags in General Operations for Modifying Specifications.

2017-05-30

Modified the following content:

- Changed the OSs supported by large-memory ECSs in Large-Memory ECSs.
- Changed the OSs supported by disk-intensive ECSs in Disk-intensive ECSs.
- Added the InfiniBand NIC status metric in Basic ECS Metrics.
- Added the description of adding, viewing, modifying, and deleting tags in General Operations for Modifying Specifications.

2017-05-19

Modified the following content:

- Added Marketplace image to Image in Step 1: Configure Basic Settings.

2017-05-08

Added the following content:

- Obtaining ECS Console Logs
- Enabling NIC Multi-Queue
- How Can I Check Whether the Network Communication Is Normal Between Two ECSs Equipped with an InfiniBand NIC Driver?

2017-04-07

Added the following content:

- How Can a Changed Static Hostname Take Effect Permanently?

Modified the following content:

- Added G2, M2, and H2 ECSs in ECS Types.

- Modified H1 ECS specifications in High-Performance Computing ECSs.

- Modified large-memory ECS specifications in Large-Memory ECSs.

- Added the System Status Check Failed metric in Basic ECS Metrics.

2017-03-09

Modified the following content:

- Changed the maximum number of tags that can be added to an ECS to 11, where 1 is automatically added by the system and the other 10 must be manually added.
- Changed one tag-related screenshot due to GUI optimization.

2017-02-03

Added the following content:

- Why Does a Key Pair Created Using puttygen.exe Fail to Be Imported on the Management Console?

Modified the following content:

- Modified the method of using puttygen.exe to generate key pairs in Creating a Key Pair.
- Added description in License Type, indicating that the system does not support dynamic license type changing.

2017-01-27

Modified the following content:

- Deleted Ubuntu from the OSs supporting BYOL in License Type.

2017-01-26

Modified the following content:

- Added full names of acronyms in User Encryption.
- Changed the OSs supporting BYOL in License Type and Changing the OS.
  - Added Red Hat Enterprise Linux.
  - Added the scope of Windows OSs for using BYOL.

2017-01-20

Added the following content:

- License Type
- User Encryption
- Can All Users Use the Encryption Feature?

2017-01-16

Modified the following content:

- Added Marketplace image in Images and Step 1: Configure Basic Settings.

2016-10-09

Added the following content:

- Managing ECS Groups
- Viewing ECS Creation Statuses
- Why Does the Failures Area Show an ECS Creation Failure But the ECS List Displays the Created ECS?

Modified the following content:

- Added information for remotely logging in to ECSs in Login Using VNC, Login Using an SSH Key, Login Using an SSH Password, and Login Using MSTSC.
- Added document links to the default keyboard types of the ECSs created using public images in Login Using VNC.
- Added notes on keyboard language settings for VNC-based ECS logins and the mapping between four types of keyboards in Login Using VNC. Provided configuration examples and links to related FAQs.

2016-09-30

Modified the following content:

- Added constraints in Managing ECS Groups because ECS groups apply only to HANA ECSs and large-memory ECSs.

2016-09-28

Added the following content:

- Can I Change the OS of an ECS?

Modified the following content:

- Deleted the FAQ that is not required any more because the preset Linux ECS username has been changed after Cloud-Init is supported.

2016-09-27

Added the following content:

- Can I Attach Multiple Disks to an ECS?

Modified the following content:

- Modified the instructions to configure keyboard languages in VNC logins in Login Using VNC.

2016-09-26

Modified the following content:

- Added the instructions to configure keyboard languages in VNC logins in Login Using VNC.

2016-09-23

Added the following content:

- Large-Memory ECSs
- Why Is the NIC Not Working?

Modified the following content:

- Added encryption algorithms and the method of using PuTTYgen to generate key pairs in Creating a Key Pair.

2016-09-18

Added the following content:

- Expanding the Local Disks of a Disk-intensive ECS
- What Is the cloudbase-init Account in Windows ECSs Used for?

Modified the following content:

- Added the description of interactive password reset scripts in Resetting the Password for Logging In to a Linux ECS
- Added notes on using various ECSs in Memory-optimized ECSs, Disk-intensive ECSs, and High-Performance Computing ECSs.

2016-08-25

Added the following content:

- GPU-accelerated ECSs
- Disk-intensive ECSs
- Why Is the NIC Not Working?
- High-Performance Computing ECSs
- Detaching an EVS Disk from a Running ECS
- What Browser Version Is Required to Remotely Log In to an ECS?
- Why Does the Login to My Linux ECS Using a Key File Fail?
- Why Does the System Display a Message Indicating that the Password for Logging In to a Windows ECS Cannot Be Viewed?

2016-07-15

Added the following content:

- Cloud-Init
- Forcible ECS shutdown
- Forcible ECS restarting
- OS changing

Modified the following content:

- ECS login modes
- OS reinstallation

2016-03-14 | This issue is the first official release.