SUMMARY:Volume Manager Question

From: Zion_Huang@focusppo.com
Date: Wed Mar 29 2000 - 15:26:12 CST


Thanks to:
Darren Dunham
Francisco de la Torre
Dave Romanowski

Question one:
I have received three replies with two votes telling me that my rootvol's
mirrored is fine.
Also, they told me that I can break the mirror and remirror them again without
the problem.
The reason the sub-disk is different is because the rootvol was encapsulated.

Question two:

Yes, I need the use eeprom use-nvramrc?=true before mirroring the rootvol.

Thanks,

Zion

Here is the original question:
------------------------------------
To All Helpers:

We are running solaris 2.6 on E450 with Veritas Volume Manager v
3.0.2,REV=08.30.1999.15.56

For the rootvol, I have mirror created but I did not use vxrootmir command to do
it, I was using scripts to create the mirror volume individually.

vxassist -g rootdg mirror rootvol layout=nolog mirrordisk

Now I notice for the rootvol, the sub-disk for plex rootvol-01 is different from
plex rootvol-02.
I think the difference is the boot block. Am I right?

Question one: Can I re-run the vxrootmir again to mirror the entire boot disk
again so the boot disk will have true mirroring. In case of boot drive fails, I
will be able to boot from the mirrored drive.

Question two: Do I need to run the eeprom use-nvramrc?=true. The document
suggests to run it before doing the mirroring.

Any suggestions and comments are welcomed.

Thanks for the help in advance,

Zion

Here is the rootvol info:

v rootvol root ENABLED 307242 - ACTIVE - -
pl rootvol-01 rootvol ENABLED 307242 - ACTIVE - -
sd rootdisk-B0 rootvol-01 ENABLED 1 0 - - Block0
   <---------
sd rootdisk-02 rootvol-01 ENABLED 307241 1 - - -
pl rootvol-02 rootvol ENABLED 307242 - ACTIVE - -
sd mirrordisk-03 rootvol-02 ENABLED 307242 0 - - -

Here is the vxprint -g rootdg:
TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0
dg rootdg rootdg - - - - - -

dm mirrordisk c0t1d0s2 - 17776404 - - - -
dm rootdisk c0t0d0s2 - 17776404 - - - -

v fs_home fsgen ENABLED 4194304 - ACTIVE - -
pl fs_home-01 fs_home ENABLED 4195944 - ACTIVE - -
sd mirrordisk-01 fs_home-01 ENABLED 4195944 0 - - -
pl fs_home-02 fs_home ENABLED 4195944 - ACTIVE - -
sd rootdisk-06 fs_home-02 ENABLED 4195944 0 - - -

v opt fsgen ENABLED 4195944 - ACTIVE - -
pl opt-01 opt ENABLED 4195944 - ACTIVE - -
sd rootdisk-04 opt-01 ENABLED 4195944 0 - - -
pl opt-02 opt ENABLED 4195944 - ACTIVE - -
sd mirrordisk-02 opt-02 ENABLED 4195944 0 - - -

v rootvol root ENABLED 307242 - ACTIVE - -
pl rootvol-01 rootvol ENABLED 307242 - ACTIVE - -
sd rootdisk-B0 rootvol-01 ENABLED 1 0 - - Block0
sd rootdisk-02 rootvol-01 ENABLED 307241 1 - - -
pl rootvol-02 rootvol ENABLED 307242 - ACTIVE - -
sd mirrordisk-03 rootvol-02 ENABLED 307242 0 - - -

v swapvol swap ENABLED 2097972 - ACTIVE - -
pl swapvol-01 swapvol ENABLED 2097972 - ACTIVE - -
sd rootdisk-01 swapvol-01 ENABLED 2097972 0 - - -
pl swapvol-02 swapvol ENABLED 2097972 - ACTIVE - -
sd mirrordisk-04 swapvol-02 ENABLED 2097972 0 - - -

v usr fsgen ENABLED 4195944 - ACTIVE - -
pl usr-01 usr ENABLED 4195944 - ACTIVE - -
sd rootdisk-03 usr-01 ENABLED 4195944 0 - - -
pl usr-02 usr ENABLED 4195944 - ACTIVE - -
sd mirrordisk-05 usr-02 ENABLED 4195944 0 - - -

v var fsgen ENABLED 2097972 - ACTIVE - -
pl var-01 var ENABLED 2097972 - ACTIVE - -
sd rootdisk-05 var-01 ENABLED 2097972 0 - - -
pl var-02 var ENABLED 2097972 - ACTIVE - -
sd mirrordisk-06 var-02 ENABLED 2097972 0 - - -



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