HP XP External Storage Software - Manual (Page 139)

11. Restart NAS OS 2 (NAS channel adapter's OS) using LUN Manager or NAS Blade Manager.
12. Start node 2 using NAS Blade Manager.
13. Perform one of the following operations using NAS Blade Manager:
• When resource group 2's status is Online, change resource group 2's execution node to
node 2 (failback).
• When resource group 2's status is Offline, start resource group 2.
14. Change the error disk in the external array to restore the external array's status.
15. Execute the Check Paths & Restore Vol. command using External Storage XP. For instructions, see
Checking the connection status and resuming external LU operations (Check Paths & Restore
Vol.)
.
16. Perform the following operations on node 1 and node 2:
a. Set up the differential-data storage device using NAS Sync Image.
b. Create the file system, and create the NFS share and CIFS share using NAS Blade Manager.
17. Return the backed-up data to the external array's restored disk, if you had the backed up data
in a disk other than the error disk.
18. Recreate the Business Copy XP and Continuous Access XP pairs.
Errors in a path to the external array
Figure 63 shows an example of when an error occurs in a path between the local array and an
external array. In Figure 63 , an error occurs in the path between the local array and external array 1;
however, the path between the local array and external array 2 is normal.
The situation in Figure 63 is as follows:
• Clients cannot access volumes in external array 1, but can access volumes in external array 2.
• The local array recognizes that the status of all file systems and volumes in external array 1 are
blocked.
External Storage XP user guide for the XP12000, XP10000, SVS200 139