FreeNAS 11.1 Swap concern

[Angersec]

With the new swap setup for 11.1, I have started receiving a lot of swap errors. With the swap partitions now mirrored, I am now using only half of the swap i used before. (6 drive raiz2 pool with 2GB swap partitions) Would it be feasible to edit the System>Advanced swap setting to increase the value (say from 2 to 4 or higher), and systematically wipe and replace each disk?

Would the wipe feature repartition the disk and resilver it?

Cheers!

 

[Ericloewe]

Why do you want more swap? Swap is a necessary evil, not something to maximize.

So, the question is, what errors are you getting? How much RAM do you have and what is workload?

 

[Angersec]

Why do you want more swap? Swap is a necessary evil, not something to maximize.

So, the question is, what errors are you getting? How much RAM do you have and what is workload?

Thanks for replying. I may have spoken too soon without really checking things out. I noticed a lot of the following errors:

swap_pager_getswapspace(15): failed
swap_pager_getswapspace(32): failed
swap_pager_getswapspace(3): failed
swap_pager_getswapspace(12): failed
swap_pager_getswapspace(3): failed

I didnt check to see what was using everything up. After checking some of the settings, and ensuring that everything was configured correctly, I ended up rebooting the system.

I had started to make heavy use of iohyve running about 10 VMs (that might be my issue). After rebooting I havent noticed any problems for the last few hours.

I run an i5 processor (dual core), with 32GB of memory. I agree, SWAP is a necessary evil. If the issue pops up again I need to check out what is actually using SWAP. Thanks again for the response!

 

[fracai]

I saw the same swap_pager_getswapspace error earlier this week. I had a single iohyve vm running Debian, but the only process running inside was an unconfigured Crashplan server. I rebooted and haven't seen it again yet. I didn't spend much time trying to figure out what the cause might have been. I could only access the system via IPMI.

Oh, the freeze seemed to coincide with the start of a scrub, but I can't be sure. I have since manually started a scrub without issue.

 

[Paul van der Zwan]

Might be this one : https://redmine.ixsystems.com/issues/27270
I am postponing upgrading from 11.0 to 11.1 until 11.1-U1 is available.