Linux system Exchange add capacity (Swap volume)

Recently in the test of Oracle 12C original swap preset configuration 3G, in the case of only 2.91G, installed when the space is not enough warning.

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Although it does not affect the use, but I gently force me, can only be expanded, the operation is as follows:

1. Check Swap size

[Email protected] ~]# free-m Total used free shared buffers Cached mem:1996 1530 465 5 51 1029 -/+ buffers/cache:449 1546 swap:2983 0 2983

2. Check the VG/LV sub-district

[[email protected] ~]# vgs   VG       #PV #LV #SN Attr   vsize  vfree   VolGroup   2   2   0 wz--n-29.50g 9.02g [[email protected] ~]# lvs   lv      VG   & nbsp   Attr       lsize  Pool Origin data%  meta%  Move Log cpy%sync Convert   lv_root volgroup-wi-ao----17.57g               &NBSP ;                          ,         &NB SP;   lv_swap volgroup-wi-ao----  2.91g

3.VG has a predetermined getaner space, simply add space to the LV, first close the swap area, the expansion and then to activate swap.

[Email protected] ~]# Swapoff/dev/mapper/volgroup-lv_swap [Email protected] ~]# lvextend-l +600m/dev/mapper/volgroup-lv_swap Size of logical volume Volgroup/lv_swap changed from 2.91 Gib (746 extents) to 2.93 GIB (751 extents). Logical volume Lv_swap successfully resized. [[email protected] ~]# LVS LV VG Attr lsize Pool Origin data% meta% Move Log cpy%sync Convert Lv_root Volgroup-wi-ao----17.57g Lv_swap volgroup-wi-a-----3.50g [email protected] ~]# Mkswap/dev/mapper/volgroup-lv_swap [email protected] ~]# Swapon/dev/mapper/volgroup-lv_swap

Re-activate the system and re-install the check through.

This article is from the "deep motto heart Sharp to take" blog, please be sure to keep this source http://canaan.blog.51cto.com/1971263/1842319

Linux system Exchange add capacity (Swap volume)