Poor performances after a couple of days

[MakjB]

Hi all,
I have a strange issue: I have installed TrueNAS 12.0-U2.1 on my Lenovo server.

The configuration of my server is:
- Intel Xeon Silver 420
- 64GB ram
- 2 x 10GB/s network card
- 2 Drives for SysyOp
- 7 Drives 4TB fof Pool

I have tested different configurations and some variables in tunables section, and all works fine after a reboot:

throughput on disks is over 100M/s per disk both SMB and iSCSI.

all works fine for a couple of days, after that performances fall down to 3MB/s per disk with warning for slow I/O performance in my pool, but also all my system is slow to manage by web page.

Restarting server solves the temporarily the issue, but after 2 days I'm again in the issue.

I have an other server with an identical configuration (hw+truenas+fw version) that doesn't report this issue; the only difference is that on this second one i don't use iSCSI, but only SMB.



Any idea to solve my problem??

Thanks to all

Mak

 

[ornias]

Please use the correct forum.
This is the SCALE forum and is NOT about TrueNAS Core 12.0-U2.1

 

[MakjB]

Please use the correct forum.
This is the SCALE forum and is NOT about TrueNAS Core 12.0-U2.1

Sorry for the misunderstanding

 

[morganL]

I would suggest trying to see if the CPU utilization or the Drive utilization changes over the 2 days?

Does the ARC change in size.... more to see if there is a memory issue that you needing ARC to get the performance.

Some drives have weird behaviour after sustained writes... can you document the drive types.