AIX在线增加文件系统空间

AIX操作系统安装完成后的文件系统空间是非常小的&＃xff0c; 可以用 df -g命令来查看当前所有文件系统大小。

如果vg中空间够的话&＃xff0c;直接扩文件系统就可以了&＃xff0c;如果vg中空间不够&＃xff0c;可以先增加pv然后在扩fs。

直接扩文件系统过程如下&＃xff1a;

bash-5.0# df -g
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd4 0.50 0.19 63% 11653 21% /
/dev/hd2 2.25 0.36 85% 37896 31% /usr
/dev/hd9var 0.25 0.22 13% 603 2% /var
/dev/hd3 0.25 0.03 89% 1109 12% /tmp
/dev/fwdump 1.00 0.99 2% 6 1% /var/adm/ras/platform
/dev/hd1 0.25 0.20 20% 19 1% /home
/dev/hd11admin 0.25 0.25 1% 5 1% /admin
/proc - - - - - /proc
/dev/hd10opt 0.25 0.04 84% 1035 10% /opt
/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump


我们把 tmp 增加5G
chfs -a size&＃61;5G /tmp
如下&＃xff0c;测试通过

bash-5.0# chfs -a size&＃61;5G /tmp
Filesystem size changed to 10485760
bash-5.0# df -g
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd4 0.50 0.19 63% 11653 21% /
/dev/hd2 2.25 0.36 85% 37896 31% /usr
/dev/hd9var 0.25 0.22 13% 604 2% /var
/dev/hd3 5.00 4.78 5% 1109 1% /tmp
/dev/fwdump 1.00 0.99 2% 6 1% /var/adm/ras/platform
/dev/hd1 0.25 0.20 20% 19 1% /home
/dev/hd11admin 0.25 0.25 1% 5 1% /admin
/proc - - - - - /proc
/dev/hd10opt 0.25 0.04 84% 1035 10% /opt
/dev/livedump 0.25 0.25 1% 4 1% /var/adm/ras/livedump


如何查看看一下VG还剩余多少空间&＃xff1f;

查看VG
lsvg
查看rootvg的详细信息
lsvg rootvg

bash-5.0# lsvg
rootvgbash-5.0# lsvg rootvg
VOLUME GROUP: rootvg VG IDENTIFIER: 00f692eb00004c000000000000261943
VG STATE: active PP SIZE: 256 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 546 (139776 megabytes)
MAX LVs: 256 FREE PPs: 149 (38144 megabytes)
LVs: 12 USED PPs: 397 (101632 megabytes)
OPEN LVs: 11 QUORUM: 2 (Enabled)
TOTAL PVs: 1 VG DESCRIPTORS: 2
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 1 AUTO ON: yes
MAX PPs per VG: 32512
MAX PPs per PV: 1016 MAX PVs: 32
LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
PV RESTRICTION: none INFINITE RETRY: no
DISK BLOCK SIZE: 512 CRITICAL VG: no
FS SYNC OPTION: nobash-5.0# lsvg -l rootvg
rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A
hd6 paging 2 2 1 open/syncd N/A
hd8 jfs2log 1 1 1 open/syncd N/A
hd4 jfs2 120 120 1 open/syncd /
hd2 jfs2 15 15 1 open/syncd /usr
hd9var jfs2 2 2 1 open/syncd /var
hd3 jfs2 25 25 1 open/syncd /tmp
hd1 jfs2 21 21 1 open/syncd /home
hd10opt jfs2 200 200 1 open/syncd /opt
hd11admin jfs2 1 1 1 open/syncd /admin
lg_dumplv sysdump 8 8 1 open/syncd N/A
livedump jfs2 1 1 1 open/syncd /var/adm/ras/livedump
bash-5.0#

查看rootvg卷组信息可知每个 PP SIZE: 256 megabyte(s) 即 256M&＃xff0c;目前rootvg还剩 FREE PPs: 149 (38144 megabytes)&＃xff0c;共计256M * 149 &＃xff1b;