The prior work necessary for this function is explained below.
When Using REC Destination Device Exclusively for Backup
No prior work is required.
When Using REC Destination Device as Stand-by Device
In the case where the device for REC is used as a device in the stand-by side, introduction of NAS management is necessary as in the device in the operation side. For the prior setting and introduction procedures for NAS operation, refer to "NAS management" in the ETERNUS SF Storage Cruiser Operation Guide or ETERNUS SF Express Operation Guide.
Note
The logical volume number of NAS volume prepared in the stand-by side must be the same as the corresponding NAS volume in the operation side.
If a volume of the same logical volume number already exists in the stand-by side, move the data of the volume to another volume and then delete the volume so that the logical volume number of its corresponding NAS volume in the operation side can be used.
The devices in the operation and stand-by sides must be in one-to-one relation. Use of one device in the stand-by side for multiple devices in the operation side is impossible.