arameen
Contributor
- Joined
- Sep 4, 2014
- Messages
- 145
Current situation
I have to 2 raidz3 pools in my freeNAS machine:
A) 5 x 4TB NAS disks raidz3 (total storage 6,99 TB)
B) 11 x 4TB NAS disks raidz3 (total storage 28,1 TB)
In addition to that I have 2 more NAS drives 8TB, not being used in FreeNAS.
My case can fit maximal 17 disks, 16 are already in place, the ones in the zpools above.
Problem
Resilvering of pool B is taking too long and I start to see it as a riskmoment that something happens during the resilvering (more drives fail during resilvering or before I have a replacement drive ready). I want to minimize that risk.
I searched and didn't find any way to reduce the resilvering time except making smaller pools? At the same time I want to maximize storage of my pool, and preferable have it as raidz3 pools as I am paranoid about failing disk and want maximum safety. I plaied with a FreeNAS machine and virtual drives of 2TB to see what can be optimal setup. If creating 2 pools raidz3 of 5 disks each, i got much less storage then creating 1 pool raidz3 containing 10 disks. For me it looks like if i go with 2 pool with less disks than one pool with all disks. then i will have much less storage?
Question
What is the best setup to make the resilvering as fast as possible but still have maximum storage?
Destroying A and B pools to create 2 pools raidz2 with a spare drive one that both can access if needed? (means 16 usable disks)
Destroying pool B and creating just 2 poolz raidz3 with a spare drive one that both can access if needed? (means 12 usable disks)
Keep pool A and B and somehow speed up resilvering on pool B?
Another setup that is better or more optimal?
I don't wanna loose too much space with a new pool setup, rather have all if not more space. But same time I want to have as much safety as possible against failing drives. I prefer to have 2 separate pools at least instead of one big one. But it is not a must.
I already read https://forums.freenas.org/index.php?threads/hardware-recommendations-read-this-first.23069/ and few of other posts, couldn't find answers regarding optimal storage in general
I have to 2 raidz3 pools in my freeNAS machine:
A) 5 x 4TB NAS disks raidz3 (total storage 6,99 TB)
B) 11 x 4TB NAS disks raidz3 (total storage 28,1 TB)
In addition to that I have 2 more NAS drives 8TB, not being used in FreeNAS.
My case can fit maximal 17 disks, 16 are already in place, the ones in the zpools above.
Problem
Resilvering of pool B is taking too long and I start to see it as a riskmoment that something happens during the resilvering (more drives fail during resilvering or before I have a replacement drive ready). I want to minimize that risk.
I searched and didn't find any way to reduce the resilvering time except making smaller pools? At the same time I want to maximize storage of my pool, and preferable have it as raidz3 pools as I am paranoid about failing disk and want maximum safety. I plaied with a FreeNAS machine and virtual drives of 2TB to see what can be optimal setup. If creating 2 pools raidz3 of 5 disks each, i got much less storage then creating 1 pool raidz3 containing 10 disks. For me it looks like if i go with 2 pool with less disks than one pool with all disks. then i will have much less storage?
Question
What is the best setup to make the resilvering as fast as possible but still have maximum storage?
Destroying A and B pools to create 2 pools raidz2 with a spare drive one that both can access if needed? (means 16 usable disks)
Destroying pool B and creating just 2 poolz raidz3 with a spare drive one that both can access if needed? (means 12 usable disks)
Keep pool A and B and somehow speed up resilvering on pool B?
Another setup that is better or more optimal?
I don't wanna loose too much space with a new pool setup, rather have all if not more space. But same time I want to have as much safety as possible against failing drives. I prefer to have 2 separate pools at least instead of one big one. But it is not a must.
I already read https://forums.freenas.org/index.php?threads/hardware-recommendations-read-this-first.23069/ and few of other posts, couldn't find answers regarding optimal storage in general
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