Replacing a mirrored drive on domain controller

[noohad]

Hi guys,

 

I need your expertise please.

Running Windows Server 2003 Standard on a Dell Tower Sever.

Disk 0 and Disk 1 are mirrored using Windows Mirroring. Primary drive disk 0 seems to be causing problems and I need to replace it asap (although it's showing as being online and healthy).

Both the drives are 1tb each.

How would I go about replacing Disk 0 please? I unplugged disk 0 and tried to boot off secondary plex in the boot menu but got an error message about system files being missing. I freaked out and plugged it all back in how it was.

I've got new 2tb drives in stock and just needed some pointers please.

 

Many thanks

[Michael]

If disk 0 is online and healthy, why do you think it's causing issues? How is it different to disk 1?

[noohad]

The server is operating like a snail. I had a look in event viewer and it said something along the lines harddisk0 will fail and to back up data and replace.

[noohad]

Just to add to that - at the moment I've booted off Secondary Plex and its a little better.

[Michael]

Are you getting SMART errors? What does the RAID software or RAID BIOS tell you?

[noohad]

There's no proper raid as such as the mirror is done via disk management of windows server 2003.

[Michael]

There's no proper raid as such as the mirror is done via disk management of windows server 2003.

 

Oh right - software RAID. Must admit, never really used it as it's no comparison to a hardware based solution. I don't actually know what the correct procedure is - I'm curious myself to know.

[noohad]

I've done hardware raid and is so much better and I've got knowledge of that. I'm too confused about sw raid on server 2003. As it's a primary domain controller I don't really fancy messing around. Rather follow procedures from someone who knows more about it than me.

[SHimmer45]

replace the disk and start a resync from disk management should be fine*

 

*usual disclaimer about backups and the like apply