Ai voc\u00ea tem uma instala\u00e7\u00e3o do Linux em LVM a qual necessita estender o tamanho da SWAP:<\/p>\n
[root@centos ~]# free -m\r\ntotal used free shared buff\/cache available\r\nMem: 1998 78 1574 8 346 1748\r\nSwap: 4135 0 4135<\/pre>\n<\/p>\n
1 - Preparar o disco<\/h3>\n
[root@centos ~]# fdisk \/dev\/sdb\r\nCommand (m for help): n\r\nSelect (default p): p\r\nCommand (m for help): t\r\nHex code (type L to list all codes): 8e\r\nCommand (m for help): w<\/pre>\n<\/p>\n
2 - Estender o VG<\/h3>\n
[root@centos ~]# pvcreate \/dev\/sdb1\r\n Physical volume \"\/dev\/sdb1\" successfully created.\r\n\r\n[root@centos ~]# vgs\r\n VG #PV #LV #SN Attr VSize VFree\r\n centos 2 2 0 wz--n- 31.50g 0\r\n\r\n[root@centos ~]# vgextend centos \/dev\/sdb1\r\n Volume group \"centos\" successfully extended\r\n\r\n[root@centos ~]# swapoff -va\r\n \r\n[root@centos ~]# lvextend -l +100%FREE \/dev\/mapper\/centos-swap\r\n Size of logical volume centos\/swap changed from 4.04 GiB (1034 extents) to 6.04 GiB (1545 extents).\r\n Logical volume centos\/swap successfully resized.<\/pre>\n<\/p>\n
3 - Formatar e ativar a SWAP<\/h3>\n
[root@centos ~]# mkswap \/dev\/mapper\/centos-swap\r\nmkswap: \/dev\/mapper\/centos-swap: warning: wiping old swap signature.\r\nSetting up swapspace version 1, size = 6328316 KiB\r\nno label, UUID=c12a0b91-01ff-4d56-a991-c3dabe79a1a2\r\n\r\n[root@centos ~]# swapon -va\r\nswapon \/dev\/mapper\/centos-swap\r\nswapon: \/dev\/mapper\/centos-swap: found swap signature: version 1, page-size 4, same byte order\r\nswapon: \/dev\/mapper\/centos-swap: pagesize=4096, swapsize=6480199680, devsize=6480199680\r\n\r\n[root@centos ~]# free -m\r\n total used free shared buff\/cache available\r\nMem: 1998 79 1572 8 346 1746\r\nSwap: 6179 0 6179\r\n\r\n[root@centos ~]# cat \/proc\/swaps\r\nFilename Type Size Used Priority\r\n\/dev\/dm-1 partition 6328316 0 -1<\/pre>\n<\/p>\n
E se precisar reduzir<\/h3>\n
[root@centos ~]# swapoff -a\r\n\r\n[root@centos ~]# lvreduce --size -4G \/dev\/mapper\/centos-swap\r\n WARNING: Reducing active logical volume to <2.04 GiB.\r\n THIS MAY DESTROY YOUR DATA (filesystem etc.)\r\nDo you really want to reduce centos\/swap? [y\/n]: y\r\n Size of logical volume centos\/swap changed from <6.04 GiB (1545 extents) to <2.04 GiB (521 extents).\r\n Logical volume centos\/swap successfully resized.\r\n \r\n[root@centos ~]# pvs\r\n PV VG Fmt Attr PSize PFree\r\n \/dev\/sda2 centos lvm2 a-- <29.51g 8.00m\r\n \/dev\/sdb1 centos lvm2 a-- <2.00g <2.00g\r\n \/dev\/sdd1 centos lvm2 a-- <2.00g <2.00g\r\n\r\n[root@centos ~]# vgreduce centos \/dev\/sdd1\r\n Removed \"\/dev\/sdd1\" from volume group \"centos\"\r\n\r\n[root@centos ~]# vgreduce centos \/dev\/sdb1\r\n Removed \"\/dev\/sdb1\" from volume group \"centos\"\r\n\r\n[root@centos ~]# mkswap \/dev\/mapper\/centos-swap\r\n \r\n[root@centos ~]# swapon -a<\/pre>\n<\/p>\n
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Refer\u00eancia:<\/p>\n