Table of Contents
Increase your LVM space
- if need add some space to LVM by following this link.
Adding Swapspace to a LVM
Verify the current status # free total used free shared buffers cached Mem: 4321648 580520 3741128 0 34332 195128 -/+ buffers/cache: 351060 3970588 Swap: 2064380 0 2064380 # pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_oel64 lvm2 a-- 40.34g 0 /dev/sda3 lvm2 a-- 6.04g 6.04g # swapon -s Filename Type Size Used Priority /dev/dm-1 partition 2064380 0 -1 # lvdisplay --- Logical volume --- LV Path /dev/vg_oel64/lv_root LV Name lv_root VG Name vg_oel64 LV UUID iSIBzr-Vfsk-YrXP-1yzX-2kwS-3g5L-GCIgYb LV Write Access read/write LV Creation host, time oel64.example.com, 2013-09-06 13:26:38 +0200 LV Status available # open 1 LV Size 38.37 GiB Current LE 9823 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:0 --- Logical volume --- LV Path /dev/vg_oel64/lv_swap LV Name lv_swap VG Name vg_oel64 LV UUID Owo3gj-FEgp-7cXS-hT82-Guvp-WpDE-v0hHEZ LV Write Access read/write LV Creation host, time oel64.example.com, 2013-09-06 13:26:46 +0200 LV Status available # open 2 LV Size 1.97 GiB Current LE 504 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:1 Extent logical volume /dev/vg_oel64/lv_swap # lvextend -L+1G /dev/vg_oel64/lv_swap Extending logical volume lv_swap to 2.97 GiB Insufficient free space: 256 extents needed, but only 0 available # vgdisplay --- Volume group --- VG Name vg_oel64 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 40.34 GiB PE Size 4.00 MiB Total PE 10327 Alloc PE / Size 10327 / 40.34 GiB Free PE / Size 0 / 0 VG UUID gLVoNb-bIGA-rZZq-pfh9-w6db-ToTC-HSRaPw Add our newly created partition to Volume group "vg_oel64 # vgextend vg_oel64 /dev/sda3 Volume group "vg_oel64" successfully extended # pvscan PV /dev/sda2 VG vg_oel64 lvm2 [40.34 GiB / 0 free] PV /dev/sda3 VG vg_oel64 lvm2 [6.04 GiB / 6.04 GiB free] Total: 2 [46.38 GiB] / in use: 2 [46.38 GiB] / in no VG: 0 [0 ] # pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_oel64 lvm2 a-- 40.34g 0 /dev/sda3 lvm2 a-- 6.04g 6.04g # lvdisplay /dev/vg_oel64/lv_swap --- Logical volume --- LV Path /dev/vg_oel64/lv_swap LV Name lv_swap VG Name vg_oel64 LV UUID Owo3gj-FEgp-7cXS-hT82-Guvp-WpDE-v0hHEZ LV Write Access read/write LV Creation host, time oel64.example.com, 2013-09-06 13:26:46 +0200 LV Status available # open 2 LV Size 1.97 GiB Current LE 504 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:1 Add some space in 1GByte steps to our lv_swap volume group # lvextend -L+1G /dev/vg_oel64/lv_swap # lvextend -L+1G /dev/vg_oel64/lv_swap # lvextend -L+1G /dev/vg_oel64/lv_swap # pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_oel64 lvm2 a-- 40.34g 0 /dev/sda3 vg_oel64 lvm2 a-- 6.04g 3.04g Recreate swap device Disable swapping for the associated logical volume: # swapoff -v /dev/vg_oel64/lv_swap swapoff on /dev/vg_oel64/lv_swap Format the new swap space: # mkswap /dev/vg_oel64/lv_swap mkswap: /dev/vg_oel64/lv_swap: warning: don't erase bootbits sectors on whole disk. Use -f to force. Setting up swapspace version 1, size = 5210108 KiB no label, UUID=031c859f-0eef-43f2-a11d-75143f15b6eb Add the volume for swap space usage and verify swap space # swapon /dev/vg_oel64/lv_swap # swapon -s Filename Type Size Used Priority /dev/dm-1 partition 5210108 0 -1 # free total used free shared buffers cached Mem: 4321648 585744 3735904 0 35632 196636 -/+ buffers/cache: 353476 3968172 Swap: 5210108 0 5210108 Verify that /dev/dm-1 pointing to our newly created newly create logical volume vg_oel64/lv_swap: # ls -l /dev/mapper | grep dm-1 lrwxrwxrwx. 1 root root 7 Sep 8 12:27 vg_oel64-lv_swap -> ../dm-1 # lvdisplay /dev/vg_oel64/lv_swap --- Logical volume --- LV Path /dev/vg_oel64/lv_swap LV Name lv_swap VG Name vg_oel64 LV UUID Owo3gj-FEgp-7cXS-hT82-Guvp-WpDE-v0hHEZ LV Write Access read/write LV Creation host, time oel64.example.com, 2013-09-06 13:26:46 +0200 LV Status available # open 2 LV Size 4.97 GiB Current LE 1272 Segments 2 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:1
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