Allocate a Management Server to manage the operation side device and the standby side device. Register the operation side device and the standby side device in the Management Server.
NAS management is implemented in the same way as on the operation side device. For prior settings and the installation procedure for performing a NAS operation, refer to "NAS Management" in the ETERNUS SF Storage Cruiser Operation Guide or ETERNUS SF Express Operation Guide.
Create the following volumes in the operation side device and standby side device.
Device | Volume |
|---|---|
Operation side device |
|
Standby side device |
|
*1: In ETERNUS DX100 S3/DX200 S3, DX500 S3/DX600 S3 whose firmware version is earlier than V10L51, the logical volume number of a NAS volume to be created must be the same as the logical volume number of the corresponding NAS volume on an operation side device.
Operation side device
Create a NAS volume according to the installation procedure for the NAS operation.
Perform a NAS backup setting to create a NAS backup volume.
Standby side device
Create a NAS volume according to the installation procedures for the NAS operation. In ETERNUS DX100 S3/DX200 S3, DX500 S3/DX600 S3 whose firmware version is earlier than V10L51, the logical volume number of a NAS volume to be created must be the same as the logical volume number of the corresponding NAS volume on an operation side device.
Perform a NAS backup setting to create a NAS backup volume
See
Refer to "NAS Management" in the ETERNUS SF Storage Cruiser Operation Guide or ETERNUS SF Express Operation Guide for the installation procedure to perform a NAS operation.
Refer to "Set NAS Backup" in ETERNUS SF Web Console Guide for the procedure to create a NAS backup volume.
Create the following three copy groups.
Copy Group / Copy Pair | Creation Method | Copy Type |
|---|---|---|
Copy group of the NAS volume and the NAS backup volume (in the operation side device) | NAS backup settings | QuickOPC |
Copy group of the NAS volume and the NAS backup volume (in the standby side device) | NAS backup settings | QuickOPC |
NAS backup volume (in the operation side device) and NAS backup volume (in the standby side device) copy group | Execute the acgroup create command | REC |
Point
When performing a standby operation between different sites, allocate a Management Server in each site. In order to make all operation procedures executable in each Management Server, register all the copy groups/copy pairs.
Use the Stack mode for the REC data transmission mode.
When backing up to a tape to use the REC initial copy skip function, a direct backup to a tape from the NAS volume or the NAS backup volume is not available. Back up to a tape from a different secondary backup volume. Refer to "3.10.5 Concerning Secondary Backup of NAS Volume and Use of Data on Different Storage Devices" for the secondary backup of the NAS volume.
Before backing up the NAS volume in the operation side, use the following procedures to back up the NAS volume in the standby side.
Back up the NAS volume in the standby side using Web Console or the acnas backup command. Refer to "3.10.1.2 How to Execute Backup" for backups using Web Console and "3.10.2.2 How to Execute Backup Commands" for backups using the acnas backup command.
Stop QuickOPC that is copying from the NAS volume to the NAS backup volume in the standby side (stop the physical copy and Tracking processing).
Point
If you perform a standby operation using the sample scripts for automating the operations, the above steps are unnecessary. Refer to "F.4 Automation of Operation" for details when using the sample script.
