HP-UX增加交换空间

HP-UX环境增加交换空间步骤如下
1、查看当前交换空间使用情况

引用

# swapinfo
             Kb      Kb      Kb   PCT  START/      Kb
TYPE      AVAIL    USED    FREE  USED   LIMIT RESERVE  PRI  NAME
dev     8388608   71248 8317360    1%       0       -    1  /dev/vg00/lvol2
reserve       - 3537128 -3537128
memory  3969772 2918112 1051660   74%

2、创建lv

引用

# lvcreate -L 4096 -n myswap  /dev/vg00
Logical volume "/dev/vg00/myswap" has been successfully created with
character device "/dev/vg00/rmyswap".
Logical volume "/dev/vg00/myswap" has been successfully extended.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

3、在fstab添加新增交换空间条目

引用

# cat /etc/fstab
"/etc/fstab" 12 lines, 582 characters
# System /etc/fstab file.  Static information about the file systems
# See fstab(4) and sam(1M) for further details on configuring devices.
/dev/vg00/lvol3 / vxfs delaylog 0 1
/dev/vg00/lvol1 /stand vxfs tranflush 0 1
/dev/vg00/lvol4 /tmp vxfs delaylog 0 2
/dev/vg00/lvol5 /home vxfs delaylog 0 2
/dev/vg00/lvol6 /opt vxfs delaylog 0 2
/dev/vg00/lvol7 /usr vxfs delaylog 0 2
/dev/vg00/lvol8 /var vxfs delaylog 0 2
/dev/vg00/lv_oracle  /oracle vxfs largefiles,delaylog 0 2
/dev/vg00/lvdbra  /dbra vxfs largefiles,delaylog 0 2
/dev/vg01/lvbackup /Tbackup vxfs largefiles,delaylog 0 2
/dev/vg00/myswap /myswap  swap defaults 0 0

4、激活新增交换空间

引用

# swapon -a
Enabling device paging on /dev/vg00/myswap.

5、进一步确认交换空间

引用

# swapinfo -atm
             Mb      Mb      Mb   PCT  START/      Mb
TYPE      AVAIL    USED    FREE  USED   LIMIT RESERVE  PRI  NAME
dev        8192      69    8123    1%       0       -    1  /dev/vg00/lvol2
dev        4096       0    4096    0%       0       -    1  /dev/vg00/myswap
reserve       -    3457   -3457
memory     3877    2850    1027   74%
total     16165    6376    9789   39%       -