Re: Adding second raid array

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Hi Dave
As Dave Nickason said a lot depends on your Raid controller. I would imagine
you would have to set the disk up in the RAID controller before the OS could
see them.
Generally during the boot process you press Ctrl M (or whatever it prompts
you) to get into the RAID controller setup. Then you will need to add your
three disks as RAID 5, and then scrub down the disks (time consuming) and
initialise them all within the Raid controller utilities. Generally it is
fairly obvious, but make sure you do not mess up your existing array.
Then a reboot should ensure the OS see's them
Hope this helps
Lewej

"Dave Nickason [SBS MVP]" wrote:

> A couple of comments since no one else has jumped in.
>
> - Your plan looks good to me. However, different controllers work
> differently, so you may want to contact IBM or read the manual. At the
> least, have a good verified backup before starting out.
>
> - You should be able to mix speeds, especially if the drives in each array
> match. Again this could be an RTM thing depending on the controller, and
> you may find that all the drives operate at the speed of the slowest.
>
> - My next great idea is a dedicated Exchange partition where nothing lives
> except the databases and logs. That way, no one's MP3 collection can shut
> down Exchange by using up all the free space. If you like the idea, this
> would be the time to implement it IMO.
>
> - In addition to the article you cite, see
> http://support.microsoft.com/default.aspx?scid=kb;en-us;239944 on how to
> move the rest of the Exchange logs. I like everything in the default
> configuration except that instead of c:\<path> I use x:\<path>. I create
> the Exchsrvr\Mdbdata data structure on the new drive.
>
>
> "Dave" <news@xxxxxxxxxxxxxxxxxx> wrote in message
> news:4354d135.9407697@xxxxxxxxxxxxxxxxxxxxxxx
> > Hi,
> > We have a IBM eServer 232 SBS2000 box with a ServeRAID 4Lx U160 SCSI
> > controller and 3*18Gb (15000rpm) drives set up as RAID 5. It has 6 hot
> > plug hard
> > drive slots on the front of the server.
> >
> > I would like to add another RAID array to add more space to the server
> > (mostly so I can move the exchange databases to the new array and
> > increase the users mailboxe sizes as the existing D: drive is almost
> > full).
> >
> > What would the process for installing these be? As I have never really
> > worked with RAID before and this is a live server.
> >
> > So far, my plan would be:
> >
> > -Shutdown the server.
> > -Load the 3 new drives (36Gb 10000rpm) into the spare slots.
> > -Boot up the server into SBS2000.
> > -Use ServeRAID manager to configure the 3 new drives as a seperate
> > array (array B) with one logical drive?
> > -Partition the new logical drive
> > -Move the Exchange D: drive databases over using MS Q257184
> >
> > Does this sound correct?
> > Any problems with mixing the drive speeds (RPMs) on a single RAID
> > controller?
> >
> > thanks,
> > Dave
>
>
>
.

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