Precautions and steps for replacing the faulty hard drive of Lenovo vnx

1. Confirm the running status of the damaged disk again before replacing the faulty disk.

2. Check the LUN and RAID group status before replacing the faulty disk.

You must wait until the rebuilding is complete to continue.

3. If a faulty disk already exists and the hot spare disk is rebuilding the RAID, you can replace the faulty disk during the reconstruction.

If the re-build is complete, FLARE copies the re-built data from the hot spare disk back to the new (equalize) disk. We strongly recommend that you replace the faulty disk after the reconstruction process is completed.

4. If the hot backup disk is rebuilding a RAID group, then another disk in the RAID group has some error logs. Do not replace the second disk before the reconstruction is complete.

In this case, the double fault problem occurs when you replace the second disk.

5. If the hard disk is not completely damaged, you must perform Background verification (Background Verify) on the Luns of all the disks before replacement ).