How can one save data from being lost while configuring RAID 1 mirroring on X 3550 M5 lenovo/IBM server having M1215 RAID controller?
1 Answer
The only guarantee that you won't lose data is up-to-date, tested backups taken before you start work.
The raid controller you're talking about might well have its own mechanism for 'safely' converting a populated jbod disk to a raid member whose content is then replicated to a new disk in the new array but I bet it will extol the virtues of backups before starting.
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The problem is M1215 RAID controller doesn't have any resources available online which could confirm if the RAID controller has that mechanism. I couldn't find that mechanism when I tried the RAID configuration. Doing any changes to the RAID configuration would erase whole data. Can't take risk with the data.– CapkryptOct 16, 2016 at 13:31
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Which kinda brings us back to 'take backup, do drive install, restore backup if necessary', doesn't it?– Rob MoirOct 16, 2016 at 14:00
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