Re: installing solaris 10 on a v880
- From: "Richard B. Gilbert" <rgilbert88@xxxxxxxxxxx>
- Date: Wed, 19 Jul 2006 16:46:57 -0400
bl8n8r wrote:
Hello All.
I've got a v880 that is going to be upgraded to solaris 10. It's
running 8 now. I've worked with Ultras and Blade 2500s, but never
anything on the scale of the v880. The v880 is running oracle as well
as veritas. I think the OS and Oracle are both sitting on a veritas
volume which is on top of the disk array. The veritas guru bailed,
and isn't really available for comment. We're not able to find anyone
willing to take on the task of upgrading this system. I would guess
the guru put veritas on the entire volume solely for the ability to
resize partitions as needed, but just guessing.
So, what I'm thinking about doing is tarring up all the data sitting on
the veritas layer, to an nfs share, powering off the v880 on a
saturday, attaching an old a1000 (un-veritas'd) disk array to the v880
and installing sol 10 on the a1000 to boot the v880 with. If the v880
comes up on the a1000, I'll bring up oracle over some nfs shares and
see if everything runs. If all goes well, wipe the v880 veritas'd disk
array and just install solaris 10 there (without veritas). Next would
be pulling back data from tarball sitting on nfs for passwords, user
accounts, groups, etc.
How many gotchas do you guys see with this? I don't know what a v880
costs, but making a mistake and having 700 or so users without their
oracle database for a day/week may just outweight the cost of having a
second v880 to setup on which would migrate at a later date to a
failover box or something.
You are absolutely correct. A mistake could cost your employer BIG bucks and you, your job. There is much to be said for having a test and development machine or even separate test and development machines that can run the same software as the production machine if with poorer performance.
If you don't have a system suitable for a test system, consider hitting the used equipment market for a box that will run the application and support maybe ten to twenty percent of the users. Then clone your production environment on the older/slower/cheaper box. Then do your upgrade (O/S, application, or both). Test it to be sure everything works right. Then, and only then, do you upgrade your production system.
One very handy way to do this is buy new hardware for production and demote the former production box to test and the former test box to development.
Yes, it costs money, but nowhere near as much as having 700 users without their database for a day or two. I think you will find that a lot of shops with business critical systems employ similar methods.
The test box can also be used for things like user training; it doesn't matter if the trainees screw up or lock a customer record for thirty minutes while they are at lunch.
.
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