Quote:> Hello out there. I am contemplating a mirrored root disk setup on
> my UE3000 server. We have not installed any volume manager on the system
>yet...however we do have the bundled in ODS?SDS 4.0. So my question is this,
>which way should we go to quickly and easily mirror root and setup for
> mirrored root booting? We want good redundancy and also want to use
>the VM for other tasks. However we are not sure wether to go with whats Free
>or pay extra and get Verias. What would you all recommend? I have used
>veritas on a sparc array before and liked it....
The Last time I checked, more than 2 years ago, Sun did not support booting
an alternate disk under Veritas. Notice that I didn't say that it wouldn't
work, but that Sun wouldn't support it. The Online Disk Suite manual had
a whole section devoted to mirroring root, swap and /usr which worked
very well. Just remember to write down the correct boot command
for the mirrored root drive. There is a problem with mirroring swap though.
If your system panics, which disk does the memory image go to? How does
the "savecore" program find that information before the mirroring software
overwrites it as it doesn't match the other drive? Which drive is the dirty
one? If your system panics due to a kernel bug, you may have to un-mirror
swap just to get the information necessary to the Sun engineer for the
finding of the bug. If your system is stable, as 90% of Solaris 2.5.1
systems are, then you should not have this problem.
Michael G. Beirne | 1509 W. Oakdale 1st, Chicago,IL 60657-4010, (773)348-8438