Mirrored SCSI

[Steve Brennan]

Hi All,

Firstly I'll apologise as I have cross posted this question to a couple of
other newsgroups as despartion is setting in.

My boss has asked me to find the following info about breaking mirrors and
my deadline is looming.

Basically we have Windows 2000 servers with the os installed on mirrored
scsi drives (2 drives). Other drives/datra are held on a different raid
card

We are looking at upgarding to Windows 2003 and we thought that if we could
break the mirror we could leave 2000 server say on scsi disk 1 and install
Windows 2003 onto scsi disk 2.

Boot the server with disk 2 (2003 server) and if all was well re-constitute
the mirror and have scsi 2 replciate over disk 1.

If the install of 2003 did not go well we would still have the original
2000 server to fall back to re-constitute the mirror and we would be safe.

So does anyone have any advice/guidance on this, things not to do or to make
sure we do do?!?! and also just how to break mirros etc?

Would scis disk id's have to be changed? etc etc.

Thanks loads in advance for your help I'll let you all know how I get on as
this is most important to me as well as part of my yearly bonus rests on
getting this sorted

Cheers all.

Steve

 

[Dave Patrick]

FYI;
Cross-posting is when you include two or more groups in the "Newsgroups:"
section. In this scenario the message and all responses are seen in all
groups that the message was cross-posted to. In other words any replies will
automatically propagate to the other newsgroup posts.

Multi-posting is when you post the same message to two or more groups
individually. In this scenario the message is seen in the groups it is
posted to, but the responses are only seen attached to the message (unless
you cross-post the reply) in which the response was made. So those that
frequent these groups then need to deal with or re-read the posts. It may
seem like a small thing to keep track of. But some of us actively traverse
50 or more groups. The poster also then must search out all of the posts to
see if there was a response.

--

Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect

 

[Gerry Hickman]

Hi,

With current cost of hard drives, you should just get a new hard drive
(or two); test your new o/s on the new drive(s) and leave the other
drives exactly as they are and disconnect them during any testing. When
you reconnect them, make sure they are in EXACTLY the same slots as before.

Keep the old drives in a sealed bag as a spares.

Your other method sounds fine too, but not as robust as the above.

 

[Gerry Hickman]

With current cost of hard drives, you should just get a new hard drive
(or two);

or another option;

When you originally built the server you obviously would have made sure
you had spare partitions on the boot mirror, so why not just install
Win2k3 to a different partition, then you can easily switch between
them. You won't need any new drives and your old o/s will still be there
if you need it...