在11.2中,Oracle利用ASM的功能提供了ACFS文件系统功能。
这一篇介绍卸载ACFS文件系统。
11gr2新增ACFS文件系统(一):http://yangtingkun.itpub.net/post/468/516774
首先在节点2上umount文件系统:
# df -k
文件系统 千字节 用了 可用 容量 挂接在
/dev/dsk/c2t0d0s0 30893320 5034236 25550151 17%
/
/devices 0 0
0 0% /devices
ctfs 0 0
0 0% /system/contract
proc 0 0
0 0% /proc
mnttab 0 0
0 0% /etc/mnttab
swap 2261640 1552 2260088 1%
/etc/svc/volatile
objfs 0 0
0 0% /system/object
sharefs 0 0
0 0% /etc/dfs/sharetab
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap1.so.1
30893320 5034236 25550151 17%
/platform/sun4u-us3/lib/libc_psr.so.1
/platform/sun4u-us3/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
30893320 5034236 25550151 17%
/platform/sun4u-us3/lib/sparcv9/libc_psr.so.1
fd 0 0
0 0% /dev/fd
swap 3409288 1149200 2260088 34%
/tmp
swap 2260128 40 2260088 1% /var/run
/dev/dsk/c1t500601603022E66Ad10s6
516335185 159130189 352041645 32%
/data
/dev/dsk/c2t0d0s7 2055085 2638 1990795 1%
/export/home
/dev/asm/oravolume-39
20971520 144060 20827460 1%
/data/oracle/product/11.2
# umount /data/oracle/product/11.2
连接asmcmd:
bash-3.00$ asmcmd
ASMCMD> volinfo -G data oravolume
Diskgroup Name: DATA
Volume Name: ORAVOLUME
Volume Device: /dev/asm/oravolume-39
State: ENABLED
Size (MB): 20480
Resize Unit (MB): 256
Redundancy: UNPROT
Stripe Columns: 4
Stripe Width (K): 128
Usage: ACFS
Mountpath: /data/oracle/product/11.2
ASMCMD> voldisable -G data oravolume
在节点1上umount文件系统:
# df -k
文件系统 千字节 用了 可用 容量 挂接在
/dev/dsk/c2t0d0s0 30254974 5421541 24530884 19%
/
/devices 0 0
0 0% /devices
ctfs 0 0
0 0% /system/contract
proc 0 0
0 0% /proc
mnttab 0 0
0 0% /etc/mnttab
swap 2552192 1664 2550528 1%
/etc/svc/volatile
objfs 0 0 0
0% /system/object
sharefs 0 0
0 0% /etc/dfs/sharetab
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap1.so.1
30254974 5421541 24530884 19%
/platform/sun4u-us3/lib/libc_psr.so.1
/platform/sun4u-us3/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
30254974 5421541 24530884 19%
/platform/sun4u-us3/lib/sparcv9/libc_psr.so.1
fd 0 0
0 0% /dev/fd
swap 2853240 302712 2550528 11%
/tmp
swap 2550568 40 2550528 1%
/var/run
/dev/dsk/c0t500601603022E66Ad9s6
516335185 96216683 414955151 19%
/data
/dev/dsk/c2t0d0s7 2690873 4895 2632161 1%
/export/home
/dev/asm/oravolume-39
20971520 144060 20827460 1%
/data/oracle/product/11.2
# umount /data/oracle/product/11.2
# fsck -F acfs /dev/asm/oravolume-39
version = 11.2.0.2.0
*****************************
********** Pass: 1 **********
*****************************
Oracle ASM Cluster File System (ACFS) On-Disk Structure Version: 39.0
ACFS file system created at: Tue Dec 28 23:24:33 2010
checking primary file system
Files checked in primary file system: 100%
Checking if any files are orphaned...
0 orphans found
Checker completed with no errors.
下面登陆asmcmd:
bash-3.00$ asmcmd
ASMCMD> volinfo -G data oravolume
Diskgroup Name: DATA
Volume Name: ORAVOLUME
Volume Device: /dev/asm/oravolume-39
State: ENABLED
Size (MB): 20480
Resize Unit (MB): 256
Redundancy: UNPROT
Stripe Columns: 4
Stripe Width (K): 128
Usage: ACFS
Mountpath: /data/oracle/product/11.2
ASMCMD> voldisable -G data oravolume
ASMCMD> voldelete -G data oravolume
至此,ACFS文件系统卸载,建立ASM的VOLUME也被删除,所有空间回收到ASM磁盘组中。
来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/4227/viewspace-693022/,如需转载,请注明出处,否则将追究法律责任。