Difference between revisions of "Swapon"
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Oct 12 12:55:03 SERVER swapon[449]: [[swapon]]: /[[swap.img]]: swapon failed: [[Read-only file system]] | Oct 12 12:55:03 SERVER swapon[449]: [[swapon]]: /[[swap.img]]: swapon failed: [[Read-only file system]] | ||
| − | == Related | + | == Related terms == |
* <code>[[free]]</code> | * <code>[[free]]</code> | ||
* [[Memory]]: <code>[[sar -r]]</code> | * [[Memory]]: <code>[[sar -r]]</code> | ||
* [[Swap]]: <code>[[sar -S]]</code> | * [[Swap]]: <code>[[sar -S]]</code> | ||
* [[Sar -W (Swapping)]] | * [[Sar -W (Swapping)]] | ||
| − | * <code>[[/etc/fstab]]</code> | + | * <code>[[/etc/fstab]]</code> and <code>[[/proc/swaps]]</code> |
* <code>[[systemctl --type swap]]</code> | * <code>[[systemctl --type swap]]</code> | ||
* <code>[[mkswap]]</code> | * <code>[[mkswap]]</code> | ||
Revision as of 10:34, 13 July 2021
swapon/swapoff enable/disable devices and files for paging and swapping and it is included on the mount package.
http://man7.org/linux/man-pages/man8/swapon.8.html
swapon -sorswapon --show
swapon --show NAME TYPE SIZE USED PRIO /dev/dm-2 partition 976M 974.8M -2
swapon --show (No output if not swap active)
swapon -s Filename Type Size Used Priority /swap.img file 2023420 104312 -2
cat /proc/swaps
Oct 12 12:55:03 SERVER swapon[449]: swapon: /swap.img: swapon failed: Read-only file system
Related terms
free- Memory:
sar -r - Swap:
sar -S - Sar -W (Swapping)
/etc/fstaband/proc/swapssystemctl --type swapmkswap
See also
- Swap,
swapon,swapoff,mkswap,swaplabel,free,sar -r,sar -S,sar -W,vmstat,vm.swappiness,/proc/swaps,/etc/fstab, Add a swap disk,systemd.swap - File systems:
mount,umount,findmnt,find,swapon,swapoff,UUID, blkid, mount options:/etc/fstab,udisksctl mount,guestmount,/proc/mounts,fstrim,systemd-mount,defaults - Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo,
vmstat, NAND, DDR,lsmem,/dev/shm,/proc/meminfo,sar -r, IOMMU,pmem, Memory management, Garbage collector, THP, Linux Huge Page TLB
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