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August 13th, 2019 20:00
How to replacement 1 harddisk error in R730 raid 5?
Few days ago my server dell R730 have error with 1 harddisk. It running raid 5 with 13 harddisk.
I want to ask how to replacement 1 harddisk error, do i need turn off server before replace harddisk or not.
I'm newbie...
Thank in advance!
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a_pratap_singh
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August 14th, 2019 05:00
Hi,
When a single disk in a RAID 5 disk array fails, the disk array status changes to Degraded. The disk array remains functional because the data on the failed disk can be rebuilt using parity and data on the remaining disks. If a hot spare disk is available, the controller can rebuild the data on the disk automatically. If a hot spare disk is not available, you must replace the failed disk to initiate a rebuild.
No need to turn off your server, Please follow the below step to replace the Disk for RAID group.
-Remove bad disk (hot swap so no need to power down the machine)
-Replace with a good disk of same size or larger
-It automatically rebuilds the array
-Once the rebuild goes to 100% check the RAID status
-If it's showed in degraded state
-Clear logs
-Clear alert log
-Do a global rescan
Hope it will help you to perform the DISK replacement from RAID array.
Thanks,
Amit