# Change History

Release Date | What's New
--- | ---

2022-04-15

Added the following content:

- Added content about EVS permissions in Permissions Management and Permissions Management.

2021-12-27

Modified the following content:

- Optimized the descriptions of the impacts brought by an unavailable CMK in EVS Disk Encryption.

2020-08-15

Added the following content:

- Added CBR description in EVS Backup and Managing EVS Backup.

2019-04-09 | Accepted in OTC-4.0/Agile-04.2019.

2019-02-15

Modified the following content:

- Deprecated the content of EVS replication as EVS replication APIs have been deprecated.

Modified the following content:

- Updated the screenshot of non-encrypted disks in Create an EVS Disk based on the tag parameter changes made on the EVS console.

2018-11-30

Added the following content:

- Added contents about bootable disks, system disks, and data disks in Attaching a Non-Shared Disk, Detaching a System Disk, and Detaching a Data Disk.

2018-05-14

Modified the following content:

- Modified the reviewed issues.

2018-02-28

Added the following content:

- Added Expanding EVS Disks in a Replication Consistency Group.

Modified the following content:

- Modified the EVS replication flowchart and added some contents.

2018-02-24

Modified the following content:

- Modified Configuring a Virtual IP Address for the Server.
- Modified the reviewed issues.

2018-01-31

Added the following content:

- Added Configuring a Virtual IP Address for the Server.

2018-01-25

Modified the following content:

- Modified the reviewed issues.
- Changed a prerequisite for performing planned migrations and reprotections to that only production servers need to be stopped but EVS disks no longer need to be detached.

2018-01-19

Modified the following content:

- Added Managing EVS Disk Transfer.

2017-12-01

Modified the following content:

- Modified the reviewed EVS replication issues.

2017-11-30

Modified the following content:

- Modified the reviewed EVS replication issues.

2017-10-28

Added the following content:

- Added descriptions about EVS replication.

2017-10-25

Modified the following content:

- Made relevant modifications in Rolling Back Data from a Snapshot according to the snapshot rollback changes made on the console.

2017-10-20

Modified the following content:

- Changed the maximum capacity of a system disk to 1024 GB in Create an EVS Disk.
- Added the description that a maximum of 7 snapshots can be created for an EVS disk in Creating a Snapshot.

2017-10-13

Added the following content:

- Enabled the function of rolling back data from snapshots and added the relevant content in the document.
- Added the content of searching EVS resources by tags in Searching Disks by Tags.

Modified the following content:

- Modified the reviewed issues in Create an EVS Disk.

2017-09-30

Added the following content:

- Added support for detaching in-use EVS disks in Detaching a Data Disk.
- Added operations in Expanding Capacity for an In-use EVS Disk.
- Added the ECS types and OSs supported by SCSI EVS disks.

Modified the following content:

- Modified the number of data disks that can be attached to an ECS to 23 in Attaching a Shared Disk.

2017-09-28

Modified the following content:

- Adjusted the outline of the document.
- Modified the reviewed issues in the document.

2017-09-08

Added the following content:

- Added support for the disk creation using a backup shared by another tenant in Create an EVS Disk.

Modified the following content:

- Removed the Restore Data button from the EVS console, and deleted or modified the related descriptions from the document.

2017-08-22

Modified the following content:

- Modified the reviewed issues in the document.

2017-07-30

Added the following content:

- Added support for the EVS snapshot function.
- Added support for the TMS tag function.
- Added support for the High I/O (Performance optimized I) and Ultra-high I/O (Latency optimized) EVS disk types.
- Added support for the multi-project function.

2017-06-15

Added the following content:

- Added the description that SCSI EVS disks can only be attached to BMSs.

2017-06-08

Modified the following content:

- Modified the description of detaching EVS disks in Attaching a Shared Disk.

2017-06-06

Added the following content:

- Added a notice on using ECS groups and SCSI reservations simultaneously in Managing a Shared EVS Disk.

2017-06-05

Added the following content:

- Added the description of the relationship between ECS groups and SCSI reservation in Managing a Shared EVS Disk.

Modified the following content:

- Modified the disk attachment description from attaching EVS disks to ECSs to attaching EVS disks to servers. Servers can be either ECSs or BMSs.

2017-06-01

Added the following content:

- Added the description that shared EVS disks cannot be created from the backups of system disks in Shared EVS Disks and Usage Instructions.
- Added the restriction on detaching shared EVS disks in Attaching a Shared Disk.

2017-05-22

Modified the following content:

- Made modifications in Create an EVS Disk according to the adjustments made on the Create Disk page.
  - Adjusted the sequence of parameters Disk Name and AZ.
  - Adjusted the location of parameter Create from backup.

2017-05-05

Added the following content:

- Added SCSI and VBD to the glossary.

2017-04-30

Added the following content:

- Added Windows public images and ECS types supported by shared SCSI EVS disks.

2017-03-30

Added the following content:

- Added the Rolling back and Rollback failed states for EVS disks in EVS Disk Status.
- Added support for SCSI EVS disks in Create an EVS Disk.
- Added support for shared EVS disks in Create an EVS Disk.

2017-02-08

Modified the following content:

- Modified the description for parameters Create Xrole and Xrole Name:EVSAccessKMS in Create an EVS Disk.

2017-02-03

Added the following content:

- Added the description that batch creation is not supported when EVS disks are created from backups in Create an EVS Disk.
- Added the description for parameters Create Xrole and Xrole Name:EVSAccessKMS in Create an EVS Disk.

Modified the following content:

- Changed the name of parameter Disk encryption to Encryption in Create an EVS Disk.

2017-01-23

Added the following content:

- Added the impact on encrypted EVS disks caused by the disabled and schedule deleted CMKs.

2017-01-20

Added the following content:

- Added the key encryption function of EVS disks.

2016-10-28

Added the following content:

- Added the description of the relationship between shared disks and EVS disks in Shared EVS Disks and Usage Instructions.
- Added examples in the Example Value column in Table 2-1 in Create an EVS Disk.

Modified the following content:

- Updates the format of Steps in the document.
- Updated the figure for Step 9 in Initializing a Windows Data Disk (Windows Server 2008).
- Changes the value of Number of Cloud Server Mount Points from 11 to 14 in the EVS row of Table 3-1.
- Updates the NOTE descriptions in Step 13 of "Expand Capacity of an EVS Disk (Windows)" and Step 12 of "Expand Capacity of an EVS Disk (Linux)": indicating that the new disks must be initialized.
- Added double quotation marks to "Creating a VBS Backup" to indicate quotation in Managing EVS Backup.
- Updated the description of EVS disk specifications to be consistent with descriptions in previous sections in Disk Types and Performance.
- Updated the section names in NOTE to be consistent with section 4.10 in EVS Disk Status.

Deleted the following content:

- Deleted the Monitored Object column from Table 1-1 in EVS and Other Services.
- Deletes the unnecessary table of Mapping between mount points and EVS disk names.
- Deletes the comma before "or Restoration failed" in the section of Delete an EVS disk.
- Deletes sections 4.1, 4.2, and 4.3 from FAQs, because the three sections have been contained in the Overview chapter.

2016-09-23

Added the following content:

- Adds the details about three disk types.
- Adds information about how to handle deletion or restoration failures to the notice for the section of Delete an EVS Disk.

Modified the following content:

- Updates the link names in step 20 and the note in the section of Expand Capacity of an EVS Disk (Linux).

Deleted the following content:

- Deletes part of the AZ parameter description from the table.

2016-09-18 | This issue is the first official release.