Users Guide
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Storage recommendations
For information about recommended storage array congurations and customized settings, see the Dell Modular Disk Storage
Replication Adapter Best Practices Guide (Web Client).
NVSRAM settings
You must change the following nonvolatile random-access memory (NVSRAM) setting to allow the mapping of LUNs to multiple
hosts or host groups to support test failover within SRM. During test failover, snapshots are created on the recovery site storage
array. You might have to map these snapshots to multiple hosts or host groups within the vSphere environment. To facilitate this
process, complete the following procedure to congure multiple LUN mappings.
1. In the Dell MD Storage Replication Adapter window, click Tools → Execute Script from the drop-down menu.
2. Enter the following commands in the script editor window:
show RAID Controller Module [0] NVSRAMByte[0x3b];
set RAID Controller Module [0] NVSRAMByte[0x3b]=2;
show RAID Controller Module [0] NVSRAMByte[0x3b];
reset RAID Controller Module [0];
3. Click Tools → Verify and Execute from the drop-down menu.
4. To apply the changes to the RAID Controller Module 1, repeat steps 2 and 3, substituting [1] for [0].
5. Exit the script editor after completing the changes for the RAID Controller Module 1.
NOTE: It takes several minutes for the controllers to reset and the execution message to complete.
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