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Forum Discussion
FG
Jun 26, 2017Aspirant
Mixing drive makes/models within a NAS
firmware 6.7.4 readynas 2120 I have my nas configured as a raid 5 (4 disk, 2tb/disk). I need to expand my storage capacity. I was going to put in 4tb hard drives. My plan was to pull out 1 o...
FG
Jun 26, 2017Aspirant
Thank you for your feed back on mix and match!
I just pulled the existing/current disk (smaller 2tb) 4 (far right bay) from NAS and dropped in the new 4tb. At this point X-RAID is OFF, I have a raid 5 configuration.
I went to NAS GUI, under volumes tab I had my existing volume and a additional/new volume called New Volume. When I clicked on NEW VOLUME I had options to Destory or balance. I thought I was going to see an option that would say something........add to existing volume....or something like that. I then turned X-RAID on and the NAS added the NEW VOLUME to the existing volume and started resyncing the data.
Does this all sound correct so far, the normal process when expanding storage capacity when using RAID 5 ?
Thank you for your help!
StephenB
Jun 26, 2017Guru - Experienced User
It didn't expand initially because XRAID was off.
This sounds normal so far.
- FGJun 26, 2017Aspirant
Once sync is completed I should be able to turn X-RAID off and keep my raid 5 config, correct?
Sorry for all the amateur hour questions, but I would rather not mess this up. There is a lot of data on NAS, which is backed up, but I would rather not get to the point where I need to restore data.
Thanks!
- StephenBJun 26, 2017Guru - Experienced User
You should leave XRAID on, and that will also keep your RAID-5 config. XRAID uses standard linux RAID modes, so it isn't really proprietary.
FWIW, when the second disk is upgraded you will have a multi-layer volume that has a 4x2TB RAID-5 base, and a 2x2TB RAID-1 upper layer (added on the 2 4TB disks). When you upgrade the third disk, the upper layer becomes 3x2TB RAID-5, and when you add the fourth it becomes 4x2TB. The upper layer never disappears.
It always looks like a single volume to you.
- FGJun 26, 2017Aspirant
StephenB wrote:FWIW, when the second disk is upgraded you will have a multi-layer volume that has a 4x2TB RAID-5 base, and a 2x2TB RAID-1 upper layer (added on the 2 4TB disks). When you upgrade the third disk, the upper layer becomes 3x2TB RAID-5, and when you add the fourth it becomes 4x2TB. The upper layer never disappears.
Not sure I follow, is that good or bad or neither?
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