Drive Mirroring

[shabbs]

I have a win2k server sp4 that contains 1 x 40gb hdd (system & boot files) and 1 x 200gb hdd for the data.
The data hdd is setup as a 'simple volume'
I am trying to create a mirror in win2000 server to mirror the current data hdd. To do this I have added a 3rd hdd (200gb) and left the disk as unallocated space. However the command to 'add mirror' is greyed out in disk administrator.
Windows shows that the 200gb hdd's are slightly different in size. The disk that I am trying to mirror is 4gb larger than the newly installed hdd? Could this be a reason why I cannot create a mirror? Is this difference in size a result of using different manufacturers hdd's?

Regards
Shabbs

 

[aftertaf]

the new disk needs to be a dynamic disk, like to old one...

but the pb with size is a problem...

you could try moving all from data hdd to new hdd, then mirroring...


Aftertaf (david)
MCSA 2003

 

[rokitman1]

Hi,

I had this issue on a 2ksrv, needed to make the slave dynamic, and I seem to rememeber they (Microsoft) suggest putting the drives on seperate IDE controllers (thats if they are IDE?)for obvious fault tollerance reasons, I am sure the dirves had to be the same size ?? one drive failed a while back and rebboted the server, it corrupted Windows, the drives then regenerated the mirror and the errors ?????
any one else seen that? I now only have one drive and a DAT, but might do what you are doing and add a 200GB for data only, just to be safe....