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|SAS-1/SAS-2 Compatibility Upgrade Guide For the Sun Blade 6000 Modular System|
You need to keep a snapshot of the persistent mappings of your LSI host bus adapters under any of these conditions:
A new server blade, running the Solaris OS and paired with a disk blade, has been added to the chassis.
Make the snapshot of the LSI host bus adapter on this server blade after you have completed its installation and configuration. This means after you have finished creation of RAID volumes and chosen a boot volume or disk.
You have replaced a disk blade in the chassis that is paired with a server blade running the Solaris OS.
Make the snapshot of the LSI host bus adapter on this server blade after you have replaced the disk blade.
You have replaced a SAS-NEM in your chassis and the chassis contains server blades running both CAM (or a CAM agent) and the Solaris OS.
Make the snapshot of the LSI host bus adapter on these server blades after you have replaced the SAS-NEM