Data-Rebuild slow after HDD change

[sbap]

I have an array with 4 drive 1 Parity with 8TB and 3 data drives with 4TB.

 

I stopped the array, shut down the server, replaced the 1 of the data drives with a 8TB  drive.

I started the array, which started the rebuild process, checking 24 hours later it was only at 33% the speed was under 100KB/sec.

I tried different thing, pausing and starting the rebuild process.

When Cancelling it and rebooting the system to start again it already starts in with under 100KB/s and the speed is not picking up.

 

attache the the Diagnostic file.

 

What could be the issue?

 

tower_ii-diagnostics-20240227-0722.zip

Edited February 27 by sbap
attached correct file

[itimpi]

We would need diagnostics taken while you are experiencing the problem.  The ones posted look like just after a reboot.

 

Guessing, I would think the most likely issues are the SATA and/or power cabling causing tone o more drives to be continually resetting.

[sbap]

@itimpi indeed, I uploaded the wrong file. I corrected it in my first post.

[JorgeB]

Could be an issue with disk2, it's not giving a complete SMART report, post new diags.

 

 

[itimpi]

48 minutes ago, sbap said:

@itimpi indeed, I uploaded the wrong file. I corrected it in my first post.

Even those diagnostics do not seem to be while showing the problem as the last line in the syslog is the parity check stating.

[sbap]

In the meantime I replaced the drive with another drive and the data-rebuild went through without issues. I assume an issue with the drive will test it seperatly.