Disabling swap

[rufik]

Is there possibility to disable disk swap?

I'd like to have only compressed ram swap, not disk-based swap.

[flyride]

It's probably possible to disable swap (and it is certainly possible to omit slow drives from swap I/O by modifying the RAID1 array to use the slow drives as hotspares) but the swap space will always be reserved on every disk that is initialized for use with DSM (partition 1).

 

So, if your objective is to recover the space, that is not possible.  If your goal is to speed up the swap access and you have certain drives that are better able to handle the I/O, see this: https://xpenology.com/forum/topic/12391-nvme-optimization-baremetal-to-esxi-report

[rufik]

I only want to omit swap usage on slow hdd (/dev/md1), no space reclamation. I can easily disable it manually (swapoff as root) but how to prevent DSM from use it again after reboot?

[f2cal6fg]

On 4/23/2021 at 9:47 AM, rufik said:

I only want to omit swap usage on slow hdd (/dev/md1), no space reclamation. I can easily disable it manually (swapoff as root) but how to prevent DSM from use it again after reboot?

 

Sorry for digging out old post, but I am also looking for this since I have terrible QD and latency on my md1 (swap) partition. Have you managed to archive that?

[f2cal6fg]

So I enabled swapfile on a different volume with higher priority instead.

Make sure swapfile priority is higher than of other swaps.

Configure swapfile setup on system boot.

 

$ sudo truncate -s 2G /volumeX/swapfile
$ sudo mkswap /volumeX/swapfile
$ sudo swapon -p 9 /volumeX/swapfile
$ swapon --show

 

Edited November 19, 2023 by f2cal6fg
typo