October 1, 201510 yr I need to upgrade 4 of the older 2TB disks in my 24-disk server running 5.0. The replacements are 4TB all already pre-cleared. I understand that a rebuild must be done after swapping out each individual disk but is it necessary to run a parity check after each rebuild or can I wait until all four have been rebuilt? What if anything bad might happen if I do defer the parity check until the end of the process? Thanks.
October 1, 201510 yr I need to upgrade 4 of the older 2TB disks in my 24-disk server running 5.0. The replacements are 4TB all already pre-cleared. I understand that a rebuild must be done after swapping out each individual disk but is it necessary to run a parity check after each rebuild or can I wait until all four have been rebuilt? What if anything bad might happen if I do defer the parity check until the end of the process? Thanks. Do you have a full backup and / or the ability to verify file integrity with checksums? If not, then I would do a non-correcting check after each rebuild and require zero errors each time. If the first drive happens to not rebuild correctly and you don't catch it, it could corrupt all the other rebuilds.
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