oracleacfs基本知识。 - 数据库编程

0G 3.9G 876M 82% / tmpfs 1.0G 83M 942M 9% /dev/shm /dev/sda1 485M 55M 405M 12% /boot /dev/mapper/vg_oracleone-LogVol02 5.0G 2.2G 2.6G 46% /home /dev/mapper/vg_oracleone-LogVol03 13G 7.0G 4.8G 60% /opt /dev/sdf1 5.0G 139M 4.6G 3% /tmp /dev/sdg1 16G 4.3G 11G 29% /ginf /dev/asm/acfsvol0-142 512M 40M 473M 8% /ginf/grid/acfssystem/acfsvol0 /dev/asm/acfsvol1-142 512M 40M 473M 8% /ginf/grid/acfssystem/acfsvol1 [root@oracle-one ~]# acfsutil size +512m /ginf/grid/acfssystem/acfsvol0 acfsutil size: new file system size: 1073741824 (1024MB) [root@oracle-one ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_oracleone-lv_root 5.0G 3.9G 876M 82% / tmpfs 1.0G 83M 942M 9% /dev/shm /dev/sda1 485M 55M 405M 12% /boot /dev/mapper/vg_oracleone-LogVol02 5.0G 2.2G 2.6G 46% /home /dev/mapper/vg_oracleone-LogVol03 13G 7.0G 4.8G 60% /opt /dev/sdf1 5.0G 139M 4.6G 3% /tmp /dev/sdg1 16G 4.3G 11G 29% /ginf /dev/asm/acfsvol0-142 1.0G 41M 984M 4% /ginf/grid/acfssystem/acfsvol0 /dev/asm/acfsvol1-142 512M 40M 473M 8% /ginf/grid/acfssystem/acfsvol1 [root@oracle-one ~]#

另外还可以动态缩小：

eg：

[root@oracle-one ~]# acfsutil size -512M /ginf/grid/acfssystem/acfsvol0

acfsutil size: new file system size: 536870912 (512MB)
[root@oracle-one ~]# 
[root@oracle-one ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_oracleone-lv_root
                      5.0G  3.9G  876M  82% /
tmpfs                 1.0G   83M  942M   9% /dev/shm
/dev/sda1             485M   55M  405M  12% /boot
/dev/mapper/vg_oracleone-LogVol02
                      5.0G  2.2G  2.6G  46% /home
/dev/mapper/vg_oracleone-LogVol03
                       13G  7.0G  4.8G  60% /opt
/dev/sdf1             5.0G  139M  4.6G   3% /tmp
/dev/sdg1              16G  4.3G   11G  29% /ginf
/dev/asm/acfsvol0-142
                      512M   41M  472M   8% /ginf/grid/acfssystem/acfsvol0
/dev/asm/acfsvol1-142
                      512M   40M  473M   8% /ginf/grid/acfssystem/acfsvol1
[root@oracle-one ~]#

三）查看acfs文件系统信息：
可以通过v$asm_diskgroup,v$asm_volume，v$asm_acfsvolume进行信息查看

SQL> col vol_label for a20
SQL> col fs_name for a40
SQL> select * from v$asm_acfsvolumes;

FS_NAME                                  VOL_DEVICE                               VOL_LABEL            PRIMA   TOTAL_MB    FREE_MB
---------------------------------------- ---------------------------------------- -------------------- ----- ---------- ----------
/ginf/grid/acfssystem/acfsvol0           /dev/asm/acfsvol0-142                    acfsvol0             TRUE         512 471.742188
/ginf/grid/acfssystem/acfsvol1           /dev/asm/acfsvol1-142                    acfsvol1             TRUE         512 472.742188

SQL>

通过asmcmd查看：

ASMCMD [+] > volinfo -G datagroup2 -a
Diskgroup Name: DATAGROUP2

         Volume Name: ACFSVOL0
         Volume Device: /dev/asm/acfsvol0-142
         State: ENABLED
         Size (MB): 512
         Resize Unit (MB): 32
         Redundancy: MIRROR
         Stripe Columns: 4
         Stripe Width (K): 128
         Usage: ACFS
         Mountpath: /ginf/grid/acfssystem/acfsvol0 

         Volume Name: ACFSVOL1
         Volume Device: /dev/asm/acfsvol1-142
         State: ENABLED
         Size (MB): 512
         Resize Unit (MB): 32
         Redundancy: MIRROR
         Stripe Columns: 4
         Stripe Width (K): 128
         Usage: ACFS
         Mountpath: /ginf/grid/acfssystem/acfsvol1 

ASMCMD [+] > 
ASMCMD [+] > lsdg
State    Type    Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name
MOUNTED  NORMAL  N         512   4096  1048576     16376     9758             4094            2832              0             N  DATAGROUP1/
MOUNTED  NORMAL  N         512   4096  1048576      8188     5946                0            2973              0             N  DATAGROUP2/
MOUNTED  NORMAL  N         512   4096  1048576      4076     3966             1019            1473              0             N  DATAGROUP3/
ASMCMD [+] >

另外还有一个与acfs文件系统交互的命令acfsutl
eg:

[root@oracle-one ~]# acfsutil info fs
/ginf/grid/acfssystem/acfsvol0
    ACFS Version: 11.2.0.4.0
    flag

oracleacfs基本知识。(四)