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Forum Discussion
Data_Dan
May 22, 2019Aspirant
RAID5 Expansion
I am currently in the process of expanding my RAID5 volume from 4 x 3 TB drives to 4 x 6TB drives. The 3rd drive has been added but I have not seen it go ONLINE in the logs yet but it displays as ONL...
- May 22, 2019
Wait for resyncing to complete. If you remove a drive too early you will lose your data.
You now have two RAID groups on the 6 TB disks (the original 4x3 TB group, and a new 2 TB group). Both need to sync.
Data_Dan wrote:
I am hoping it will remain a RAID5 volume and not change to a RAID6 volume.
That never happens with vertical expansion. And the threshold for horizontal expansion is higher than 4 drives.
StephenB
May 22, 2019Guru - Experienced User
Wait for resyncing to complete. If you remove a drive too early you will lose your data.
You now have two RAID groups on the 6 TB disks (the original 4x3 TB group, and a new 2 TB group). Both need to sync.
Data_Dan wrote:
I am hoping it will remain a RAID5 volume and not change to a RAID6 volume.
That never happens with vertical expansion. And the threshold for horizontal expansion is higher than 4 drives.
Data_Dan
May 22, 2019Aspirant
Thanks!
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