# Change History

Release Date | Description
--- | ---
2021-12-20 | Updated the following content: Deleted descriptions of BMSs in section 1.1 "VBS."
2021-07-26 | Updated the following content: Added the backup constraint on the EVS disk size.
2019-03-30 | Updated the following content: Updated some screenshots.
2018-08-20 | Updated the following content: Accepted in OTC 3.2.
2018-07-30 | Updated the following content: Added description of setting backup times on specified hours as well as setting retention rules by week and by day.
2018-05-28 | Updated the following content: Accepted in OTC 3.1.

2018-05-18

Updated the following content:

- Added description of the relationship between VBS and TMS.
- Modified description of tag-related parameters.
- Spit section 3.2.
- Widened the first column of table 1-1.

2018-04-30

Updated the following content:

- Modified the characters supported by tags.
- Modified section "Related Services".
- Updated the EVS disk states that do not support association with backup policies in "Associate EVS Disks with a Backup Policy or Disassociate Them from a Backup Policy".
- Deleted the backup restrictions on EVS disk capacity and ECS status from "Precautions".

2018-01-23

Updated the following content:

- Updated the document based on the new console layout.
- Updated the description of shared backups in section "Manage Shared VBS Backups".
- Added a question "What Are the Differences Between CSBS and VBS?"

2017-10-26 | Updated the following content: Added the statement of "These tags are used to filter and manage backup resources only."

2017-10-13

Updated the following content:

- Added the description of searching for backups by tag.
- Added "Example Value" to the parameter description of tags.

2017-09-30 | Updated the following content: Updated the description of backup sharing.
2017-09-08 | Updated the following content: Added the description of backup sharing.

2017-07-30

Updated the following content:

- Added the description of tags.
- Added a question "Why Add Tags to a VBS Backup or Backup Policy?"
- Added the section of "Basic Concepts."
- Added the operation of selecting a region and a project for a login.

2017-05-22

Updated the following content:

- Changed the two different font colors to black.
- Changed "however, historical non-encrypted backups will be unchanged." to "however, historical non-encrypted backups will remain unchanged."
- Changed "cache data" to "cached data".
- Updated the description of cached data in section 4.2 Must I Stop the ECS Before Backing Up EVS Disks on an ECS Using VBS?
- Updated the parameter description for "Backup Time " in section 3.2 Data Backup Using a Backup Policy.

2017-04-28

Updated the following content:

- Updated the note for "Create an EVS Disk Using a VBS Backup" in section 3.3 Data Restoration Using a VBS Backup.
- Deleted all limitations about SCSI EVS disks.
- Updated the note for backing up encrypted EVS disks in section 2.2 Creating a VBS Backup.
- Updated the answer to the question of "Must I Stop the ECS Before Backing Up EVS Disks on an ECS Using VBS" in chapter 4 FAQs.
- Updated the parameter description for "Create a Backup Policy" in section 3.2 Data Backup Using a Backup Policy.

2017-03-30

Updated the following content:

- Added section 1.5 User Permissions.
- Updated the note for "Precautions" in section 2.2 Creating a VBS Backup.
- Updated the note for "Create a Backup Policy" and "Associate EVS Disks with a Backup Policy or Disassociate Them from a Backup Policy" in section 3.2 Data Backup Using a Backup Policy.
- Updated the note for "Create an EVS Disk Using a VBS Backup" in section 3.3 Data Restoration Using a VBS Backup.

2017-02-28

Updated the following content:

- Updated the note for "View Backup Jobs" in section 3.2 Data Backup Using a Backup Policy.
- Deleted the note for "(Optional) Other Operations with Backup Policies" in section 3.2 Data Backup Using a Backup Policy.

2017-02-08

Updated the following content:

- Added "View the Status of a Backup Job" in section 3.1 VBS Backup Management.
- Updated the description of step 4 and the note of step 5 for "Search for a VBS Backup" in section 3.1 VBS Backup Management.

2017-01-20

Updated the following content:

- Added "Search for Associated EVS Disks" in section 3.2 Data Backup Using a Backup Policy.
- Added the description of encrypted EVS disks in section 3.2 Data Backup Using a Backup Policy.
- Added the description of parameters Disk Encryption and Key Name in section 3.3 Data Restoration Using a VBS Backup.
- Added the steps of searching for associated EVS disks in section 3.2 Data Backup Using a Data Backup Policy.
- Updated the description of parameter Backups in section 3.2 Data Backup Using a Backup Policy.
- Updated the steps of associating EVS disks in section 3.2 Data Backup Using a Backup Policy.
- Deleted the note for "Create an EVS Disk Using a VBS Backup" in section 3.3 Data Restoration Using a VBS Backup.

2017-01-14

Updated the following content:

- Added Step 4 to "Delete a VBS Backup" in section 3.1 VBS Backup Management.
- Added section 4.9 What Can I Do Against Exceptions in VBS.
- Updated the operation of associating EVS disks in section 3.2 Data Backup Using a Backup Policy.
- Updated the description of backup jobs in section 3.2 Data Backup Using a Backup Policy.
- Updated the description of the default backup policy in section 3.2 Data Backup Using a Backup Policy.
- Updated the description of parameters AZ, Disk Type, and Quantity in Table "Parameter description" of section 3.3 Data Restoration Using a VBS Backup.
- Changed the Back Up button to Back Up Again in section 3.2 Data Backup Using a Backup Policy.

2016-12-30 | Updated the following content: Updated section 3.2 Data Backup Using a Backup Policy.

2016-11-30

Updated the following content:

- Added section 1.4 Backup Policy Overview.
- Added section 3.2 Data Backup Using a Backup Policy.

2016-11-24

Updated the following content:

- Added section 2.1 Operation Procedure.
- Added Step 3 description in "Delete a VBS Backup" of section 3.1 VBS Backup Management.

2016-10-19 | Updated the following content: Added VBS troubleshooting cases.
2016-07-15 | Updated the following content: Added VBS operation instances.
2017-02-14 | This issue is the first official release.