Skip to Main Content

Portuguese

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group information.

oracle asmlib

kmyoongAug 20 2016

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 ?

Comments

Post Details

Added on Aug 20 2016
0 comments
1,273 views