How to create a mirror on a layered volume

Created: 12 Jul 2012

WayneF

I am getting an error when trying to create a mirror on a layered volume:

vxassist -g rootdg -b mirror localcw-L01 camcs03a
VxVM vxassist ERROR V-5-1-2150 Volume localcw-L01 is a layered volume

The volume looks like this:

v localcw - ENABLED ACTIVE 6291456 SELECT - fsgen
pl localcw-04 localcw ENABLED ACTIVE 6291456 CONCAT - RW
sv localcw-S01 localcw-04 localcw-L01 1 4182016 0 3/3 ENA
sv localcw-S02 localcw-04 localcw-L02 1 2109440 4182016 3/3 ENA

v localcw-L01 - ENABLED ACTIVE 4182016 SELECT - fsgen
pl localcw-P01 localcw-L01 ENABLED ACTIVE LOGONLY CONCAT - RW
sd camcs03-42 localcw-P01 camcs03 163577856 66 LOG c15t16d2 ENA
pl localcw-P02 localcw-L01 ENABLED ACTIVE 4182016 CONCAT - RW
sd camcs01-08 localcw-P02 camcs01 448790528 4182016 0 c15t16d0 ENA
pl localcw-P03 localcw-L01 ENABLED ACTIVE 4182016 CONCAT - RW
sd camcs02-41 localcw-P03 camcs02 163577856 4182016 0 c15t16d1 ENA

v localcw-L02 - ENABLED ACTIVE 2109440 SELECT - fsgen
pl localcw-P04 localcw-L02 ENABLED ACTIVE LOGONLY CONCAT - RW
sd camcs03-43 localcw-P04 camcs03 163577922 33 LOG c15t16d2 ENA
pl localcw-P05 localcw-L02 ENABLED ACTIVE 2109440 CONCAT - RW
sd camcs01-09 localcw-P05 camcs01 452972544 2109440 0 c15t16d0 ENA
pl localcw-P06 localcw-L02 ENABLED ACTIVE 2109440 CONCAT - RW
sd camcs03-44 localcw-P06 camcs03 163581952 2109440 0 c15t16d2 ENA

Any ideas?

Filed Under

Tags:

Storage and Clustering, Storage Foundation

Comments

WayneF

Jul

2012

Nevermind. I see now that

Nevermind. I see now that the person I was trying to assist was not attempting to add the mirror to the top level volume.

Gaurav Sangamnerkar

Trusted Advisor

Certified

Jul

2012

Correct, the mirror command

Correct, the mirror command should be issued to the parent volume & not subvolumes .. & vxassist is intelligent enough to determine the structure of volume, find the free disks & then mirror in the best possible pattern ..

PS: If you are happy with the answer provided, please mark the post as solution. You can do so by clicking link "Mark as Solution" below the answer provided.

syedmasood2

Aug

2012

Hello, I have a situation

Hello,

I have a situation where i need to mirror a 0+1 (similar to above) volume to a single SAN disk.

are there any constraints/consideration to make before i go with mirroring?

configuration:

v  ora00    -            ENABLED  ACTIVE   286615666 SELECT   ora00-04 fsgen

pl ora00-04 ora00    ENABLED  ACTIVE   286615808 STRIPE   2/128    RW

sv ora00-S01 ora00-04 ora00-L01 1  143307904 0/0      3/3      ENA

sv ora00-S02 ora00-04 ora00-L02 1  143307904 1/0      3/3      ENA


v  ora00-L01 -           ENABLED  ACTIVE   143307904 SELECT   -        fsgen

pl ora00-P01 ora00-L01 ENABLED ACTIVE  LOGONLY  CONCAT    -        RW

sd disk01-03    ora00-P01 disk01  0        1155     LOG       c1t12d0   ENA

pl ora00-P02 ora00-L01 ENABLED ACTIVE  143307904 CONCAT   -        RW

sd disk01-04    ora00-P02 disk01  10176    143307904 0        c1t12d0   ENA

pl ora00-P03 ora00-L01 ENABLED ACTIVE  143307904 CONCAT   -        RW

sd disk03-02    ora00-P03 disk03  0        143307904 0        c1t14d0   ENA


v  ora00-L02 -           ENABLED  ACTIVE   143307904 SELECT   -        fsgen

pl ora00-P04 ora00-L02 ENABLED ACTIVE  LOGONLY  CONCAT    -        RW

sd disk01-05    ora00-P04 disk01  1155     1155     LOG       c1t12d0   ENA

pl ora00-P05 ora00-L02 ENABLED ACTIVE  143307904 CONCAT   -        RW

sd disk02-02    ora00-P05 disk02  0        143307904 0        c1t13d0   ENA

pl ora00-P06 ora00-L02 ENABLED ACTIVE  143307904 CONCAT   -        RW

sd disk04-02    ora00-P06 disk04  0        143307904 0        c1t15d0   ENA

thanks

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