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Replacing faulty HDD in Raid1 with Intel chipset on workstation

Hi

We have OptiPlex 790 with RAID1 which uses 2.5" 7200rpm 16MB buffer 250GB Seagate hard disks ST9250410AS. One of them has failed and we no longer have warranty and I am not able to find replacement in UK (or replacement I found is almost £100 comparing to £50 for much bigger disk).
The computer is working fine on one disk but we need that failure redundant protection so we have to replace the faulty hard disk.

Can we replace it with any size 2.5" 7200rpm hard disks and it will work but only use 250GB of that new hard disk?

Regards,
Tom

SOLUTION

noxcho

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ASKER CERTIFIED SOLUTION

Sajid Shaik M

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Tom Skowyrski

ASKER

Thank you for your help. Both answers were very similar.
I opted for 2 off WD2500LPLX and will install the first one asap and then second one to replace the good Seagate as soon as Rebuild of the first one has finished.
By the way: this is workstation computer and not server.

Sajid Shaik M

what ever the data is important ... :) all the best n thanks

noxcho

If you go through one drive connect per time you might need to resize the partitions after the RAID is running on new drives.
With backup & restore you could avoid this.

Tom Skowyrski

ASKER

The disks I chose are 250GB so the same size. I managed to find them at a good price so I did not have to go for a bigger ones. I assumed there may be some additional work if I was to put 2 bigger hard disks and I wanted to avoid it. But thank you for reminding me about it.

noxcho

Ok, then it is not a problem :)