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Walk over to one of your servers, find the fibre connecting to the SAN switch, and disconnect one cable.1 person found this helpful
You mean Fibre between one of my rac server to switch of storage.
Which HP SAN. The EVA series? If the EVA series, the LUN attached to your server in practice actually looks like ASM on top of ASM as the EVA will spread the defintion of the LUN across ALL devices in the SAN Diskgroup. Therefore, it will be nearly impossible for you to tell exactly on which spinning disk your "LUN" lives.1 person found this helpful
disconnecting a SAN connection will not test the external redundancy. Only pulling disks out of the frame can test that. When the EVA first came out about 10 years ago, one test that we did was to create a very large LUN, fill it with data and start pulling disk drives until something failed. In an Diskgroup of 128 x 146G drives, we pulled 8 random devices before we hit a snag. (then we rebuilt everthing!!! :) )
Don't do this test unless you have not yet put real data on these devices, because you can corrupt it requiring you to rebuild the SAN array (anything not backed up correctly would be lost forever)
Exactly. Just perform a disconnect. Assuming you have duplexed your SAN switches power one of them down as well as a second test.1 person found this helpful
Thank you all...