1 |
On 01/07/2021 14:47, Robert David wrote: |
2 |
> Hi Frank, |
3 |
> |
4 |
|
5 |
> |
6 |
> In any of my data arrays I have long time migrated off the RAIDZ to the |
7 |
> MIRROR or RAID10. You will find finally that the RAIDZ is slow and not |
8 |
> very flexible. Only think you gain is the extra space in constrained |
9 |
> array spaces. For RAID10 it is much easier to raise the size, just |
10 |
> resilvering to new bigger disks, removing old and expanding. The |
11 |
> resilvering speed is magnitude faster. |
12 |
|
13 |
> And anyway much easier to recover |
14 |
> in cases of failure. |
15 |
> |
16 |
ARE YOU SURE??? |
17 |
|
18 |
The standard mirror does not cope with corruption very well. Lose a disk |
19 |
and resilvering is fast. Corrupt the data, and you'll be tearing your |
20 |
hair out why things go wrong randomly, with no automated way, even once |
21 |
you've realised what's happened, to recover your data other than a |
22 |
restore from backup. |
23 |
|
24 |
> If you really need the additional space, consider adding second jbod |
25 |
> with another disks. |
26 |
|
27 |
That'd be my approach - migrate a load of stuff off onto another disk |
28 |
elsewhere, but that's not what the OP wants to do. |
29 |
> |
30 |
> Robert. |
31 |
> |
32 |
Cheers, |
33 |
Wol |