Very Computer

Good Morning,

When hdisk0 failed on a mirrored rootvg (p610 running 4.3.3 Maint level 6)
all of the commands which update the "mini odm" failed.

Of course this is because /dev/ipdevice as pointing to the disk which was
used in the boot (hdisk0). Since I have hdisk1 with a boot image on it and
is in the boot list, is there a way to have ipldevice point to a reference
other than the physical disk as when the disk fails that you point ipldevice
to you have to remove it and recreate it pointing to the mirror device
(rhdisk1).

If this is the only way (which is the way I have always done this) then this
is fine, however I was wondering if some one knew of a way to handle this
with the remove and recreation of the ipldevice , after the error has
occurred.

An suggestions or comments would be helpful.

Regards,

Brent

Very interesting.  The hard link is done after successful boot
in normal mode (not service), but I don't know of anything that
would periodically keep checking and adjust the link for hard
disk failure.

PS - the info for /dev/ipldevice which used to be in the odm is
not there in 5.1.  The old script "rvgrecover" used fix the odm
when info about rootvg is messed up, will no longer work.  You
have to put in the actual dev file, that is, in the shell script:

PV=/dev/ipldevice # works all thru v3 and v4
now
PV=/dev/rhdisk0   # or whatever for 5.0.

Norm

Quote:> Good Morning,

> When hdisk0 failed on a mirrored rootvg (p610 running 4.3.3 Maint level
6)
> all of the commands which update the "mini odm" failed.

> Of course this is because /dev/ipdevice as pointing to the disk which was
> used in the boot (hdisk0). Since I have hdisk1 with a boot image on it
and
> is in the boot list, is there a way to have ipldevice point to a
reference
> other than the physical disk as when the disk fails that you point
ipldevice
> to you have to remove it and recreate it pointing to the mirror device
> (rhdisk1).

> If this is the only way (which is the way I have always done this) then
this
> is fine, however I was wondering if some one knew of a way to handle this
> with the remove and recreation of the ipldevice , after the error has
> occurred.

> An suggestions or comments would be helpful.

> Regards,

> Brent