HI everyone,
I have some doubt for using asmlib. I setup oracle rac using
a. oracle grid 12.1
b. oracle linux 7.2
c. 2 server nodes
My node1
[root@yuna disks]# pwd
/dev/oracleasm/disks
[root@yuna disks]#
[root@yuna disks]# ls -ltra
total 0
drwxr-xr-x 4 root root 0 Aug 20 14:17 ..
drwxr-xr-x 1 root root 0 Aug 20 14:17 .
brw-rw---- 1 grid asmadmin 8, 49 Aug 20 14:17 VOL1
brw-rw---- 1 grid asmadmin 8, 81 Aug 20 14:17 VOL3
brw-rw---- 1 grid asmadmin 8, 97 Aug 20 14:17 VOL4
brw-rw---- 1 grid asmadmin 8, 65 Aug 20 14:17 VOL2
[root@yuna disks]# oracleasm querydisk /dev/sdd1
Device "/dev/sdd1" is marked an ASM disk with the label "VOL1"
[root@yuna disks]#
[root@yuna disks]# oracleasm querydisk /dev/sde1
Device "/dev/sde1" is marked an ASM disk with the label "VOL2"
[root@yuna disks]#
[root@yuna disks]# oracleasm querydisk /dev/sdf1
Device "/dev/sdf1" is marked an ASM disk with the label "VOL3"
[root@yuna disks]#
[root@yuna disks]# oracleasm querydisk /dev/sdg1
Device "/dev/sdg1" is marked an ASM disk with the label "VOL4"
My node2
[root@tidus disks]# pwd
/dev/oracleasm/disks
[root@tidus disks]#
[root@tidus disks]# ls -ltra
total 0
brw-rw---- 1 grid asmadmin 8, 49 Aug 20 14:17 VOL3
brw-rw---- 1 grid asmadmin 8, 65 Aug 20 14:17 VOL1
brw-rw---- 1 grid asmadmin 8, 97 Aug 20 14:17 VOL4
brw-rw---- 1 grid asmadmin 8, 81 Aug 20 14:17 VOL2
drwxr-xr-x 4 root root 0 Aug 20 15:22 ..
drwxr-xr-x 1 root root 0 Aug 20 15:22 .
[root@tidus disks]#
[root@tidus disks]#
[root@tidus disks]# oracleasm querydisk /dev/sdd1
Device "/dev/sdd1" is marked an ASM disk with the label "VOL3"
[root@tidus disks]#
[root@tidus disks]# oracleasm querydisk /dev/sde1
Device "/dev/sde1" is marked an ASM disk with the label "VOL1"
[root@tidus disks]#
[root@tidus disks]# oracleasm querydisk /dev/sdf1
Device "/dev/sdf1" is marked an ASM disk with the label "VOL2"
[root@tidus disks]#
[root@tidus disks]# oracleasm querydisk /dev/sdg1
Device "/dev/sdg1" is marked an ASM disk with the label "VOL4"
1. is it normal why node1 tag /dev/sdd1 as VOL1 but node2 tag /dev/sde1 as VOL1 ?
2. actually VOL1 in both nodes are point to same physical disk although their device name not same?
2. if i want device name all same in all nodes, i have to use udev first then after that use asmlib to create asmdisk ?