Hey fellow Unraiders

 

I've bough 3*12TB in order to replace my 1*4TB and 1*3TB drives

Now the setup is

• 1*12TB as parity (already in place and set up)
• 2*12TB cleared and added to the array
• 1*3TB and 1*4TB which are already in place

 

Now it's time to move files between disks in order to be able to remove the previous disks

 

I know the question may have been asked abnout how to transfer files between disk (and not Shares). I've found multiple answer but not a clear one of a recent one

 

I found Unbalance quite reliable in the past, I'm planning to use it, but today transfer speed are really slow, like 9-12MB/s

• I've disabled parity to help with preventing writing to it, I'll redo the parity once done

 

Any suggestions ?

Thanks in advance

 

 

 

It would have made a lot more sense to just replace the smaller disks with the larger, one at a time, and let it rebuild.

 

24 minutes ago, Qiou said:

transfer speed are really slow, like 9-12MB/s

• I've disabled parity to help with preventing writing to it

attach diagnostics to your NEXT post in this thread.

@trurl I've attached diagnostics here

kirito-diagnostics-20211210-2120.zip

 

So I can rebuild the drives onto larger ones ? That could work for me, I'll move files back, rebuild the parity and find out how to rebuild on a new drive

Edited December 10, 20214 yr by Qiou

Another useful info:

One of the three 12TB drives is performing way faster than the 2 others.

I may have it a limitation of my motherboard ? I'll let the parity rebuild on this drive first and get back on why the 2 others are performing way slower

Disk1 is CMR and disk2 is SMR, which can perform slower than CMR. Not obvious about the others without looking up the models since their SMART report doesn't specify.

Other models are Western Digital White Label 12TB, freshed shucked from 3 My Book units (identical)

@trurl It's been now 24h and my array only managed to rebuild 1.59TB of Parity, despite numerous run at 110/120MB/s the days before

 

I don't see any errors on disk Smart results, cables are the same as before, the parity checks on 12/09 and 12/10 were both on the 12TB drive

Only change I had to do was cutting the 3.3V rail to power the 12TB drives, because they refused to boot otherwise

Diagnostics?

I think I've found the culprit here:

root@Kirito:~# dd if=/dev/sdc of=/dev/null bs=4k status=progress
3133599744 bytes (3.1 GB, 2.9 GiB) copied, 16 s, 196 MB/s^C
802639+0 records in
802638+0 records out
3287605248 bytes (3.3 GB, 3.1 GiB) copied, 16.7633 s, 196 MB/s

root@Kirito:~# dd if=/dev/sdb of=/dev/null bs=4k status=progress
275914752 bytes (276 MB, 263 MiB) copied, 15 s, 18.8 MB/s^C
67394+0 records in
67393+0 records out
276041728 bytes (276 MB, 263 MiB) copied, 15.1245 s, 18.3 MB/s

root@Kirito:~# dd if=/dev/sdd of=/dev/null bs=4k status=progress
4916891648 bytes (4.9 GB, 4.6 GiB) copied, 16 s, 307 MB/s^C
1204285+0 records in
1204284+0 records out
4932747264 bytes (4.9 GB, 4.6 GiB) copied, 16.0833 s, 307 MB/s

 

sdb is my 3TB drive, maybe it's becoming to fail, unsure why now though

 

new diagnotics attached

 

kirito-diagnostics-20211212-0315.zip

SMART for that disk looks OK but it hasn't had extended test done recently. You might need to disable spindown on the disk to get extended test to complete.