Re: Disk swap on Model 600 with v4r2

Yep you're in good shape. Add another cage and swap in the 2726. The existing drives will be recognized and work fine on the upgraded controller. Then you can migrate to the 6713's and dump the 6607s or leave 'em in there, your call. They are not RAIDed now but once you get the new controller in there you can move them to RAID if you'd like.

ANY controller you add in there beyond the base will support both drive cages and up to 10 drives. Depending on if you want to 'go Franken' you can tie on a third cage and control 15 of 'em.

- DrFranken

Mark Murphy/STAR BASE Consulting Inc. wrote:

Currently have only the base controller with 4 drives.
Here is the controller resources list:
Opt Resource Type-Model Status DC01 2728-001 Operational DD004 6607-050 Operational DD003 6607-050 Operational DD002 6607-050 Operational DD001 6607-050 Operational OPT01 6321-002 Operational TAP01 63A0-001 Operational
I want to replace the controller with a 2726, and the drives with 6813's. As far as I know, the tape works, and I can test it with a few files. I am only at 57% right now. Could I just swap the controller without having to restore the contents of the drives? Then I can have up to 10 drives in the system. May need to add a second drive cage to do that, but there is room in the system box for that. Anything else I need to add drives 6-10 besides a controller that supports more than 5 drives?

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx



From: Larry Bolhuis <midrange@xxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date: 11/24/2009 05:17 PM
Subject: Re: Disk swap on Model 600 with v4r2
Sent by: midrange-l-bounces@xxxxxxxxxxxx



How many drives do you have now and are they protected?

Best way to accomplish this is to copy the data. If you have room for 4 more drives then swap the raid card in, start RAID on the new drives, copy the LS drive to one of the new drives. Move that drive into the LS position (bottom left) and IPL to that drive. Add the other 3 8GB drives to the system, remove the remaining 4GB drives from the system. You are done.

Only issue with this is if something goes 'thunk' once the copy is complete the old LS drive is of little use. It will still IPL to DST but won't know of the rest of your 4GB drives. You need to complete the migration. If you choose the tape method (SAVE 21/RESTORE 21) or Save Storage / Restore Storage then the old drives can be placed back in and will run just fine. Note that SAVE 21/RESTORE 21 will cause all your spooled files to go away *POOF* - just sayin....

By the way if you need parts for this migration let me know off list. I have many pieces and parts of that vintage in the FrankenLab, most likely everything you could need.

- DrF

Mark Murphy/STAR BASE Consulting Inc. wrote:

I am considering swaping 4 Gb drives with 8 Gb drives on an old Model

600.

I plan to swap the controller as well so I can turn on RAID protection.

This isn't a real problem, but the hardware is so old that the prospect

of

this scares me a bit. So the real question is if the restore fails, can

I

just put the old hardware back in (in the same place it was before), and

everything will be the way it was before? Or do I need to do something else?

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx