HP StorageWorks XP Remote Web Console Software - Manual (Page 113)

External Storage XP user guide 113
NOTE: In the configuration in Figure 64 , HP recommends setting alternate paths to prevent the NAS
Blade system from being blocked because of the path failure. For more information, see ” Alternate paths ”
on page 22.
The situation in Figure 64 is as follows:
• None of the user LUs can be used from node 1 or node 2.
• Clients cannot access volumes.
• The local array recognizes that the status of all file systems and volumes are blocked.
Figure 64 If both nodes use the same 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.) ” on
page 100.
3. Perform the forced stop operations using NAS Blade Manager for resource group 1 and resource
group 2.
4. Stop the cluster using NAS Blade Manager.
5. Restart NAS OS 1 and NAS OS 2 (NAS channel adapter’s OS) using LUN Manager or NAS Blade
Manager.
6. Start the cluster using NAS Blade Manager.
7. Start resource group 1 and resource group 2 using NAS Blade Manager.