HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

Figure 63 Error in a path to the external array
1. Restore (for example, check the cable's connection status or change the switch) the status of the error
path between the local array and external array 1.
2. 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.).
3. Change resource group 1's execution node to node 2 using NAS Blade Manager (failover).
If resource group 1's status is Offline, this operation is not required.
4. Stop node 1 using NAS Blade Manager.
5. Restart NAS OS 1 (NAS channel adapter's OS) using LUN Manager or NAS Blade Manager.
6. Start node 1 using NAS Blade Manager.
7. Perform one of the following operations using NAS Blade Manager:
• When resource group 1's status is Online, change resource group 1's execution node to
node 1 (failback).
• Whenresourcegroup1'sstatusisOffline, start resource group 1.
8. Change resource group 2's execution node to node 1 using NAS Blade Manager (failover).
If resource group 2's status is Offline, this operation is not required.
9. Stop node 2 using NAS Blade Manager.
10. Restart NAS OS 2 (NAS channel adapter's OS) using LUN Manager or NAS Blade Manager.
11 . Start node 2 using NAS Blade Manager.
12. 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.
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Troubleshooting NAS Blade systems that include external arrays