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Replacing a single failing SCSI drive that may be in RAID?

Hello,

Last year we ran into an issue with QuickBooks 2009 Enterprise having slow network performance and other issues. After posting here EE members helped us narrow it down to a hard drive being a possible cause. The manager elected not to replace the drive, because after the troubleshooting steps network and server performance returned to normal levels.

This week the problem has returned and the drive is making very audible noise. The current set up is as follows:

Dell PowerEdge tower
SCSI 2x Seagate 73GB 10K RPM 68 pin drives
It lists two separate drives (E.G. C:\  and F:\ where QB company file is located)
PCI Adaptec RAID controller
Windows 2003 SP2 Server OS
QuickBooks Enterprise 2009

Not sure which drive is failing, but would it be possible to replace a single drive in this setup or would two drives need to be purchased? It's a 2006 system and I believe the PSU may also be on the blink, at least the fan anyway. That being said, would a new server be more cost effective?

Thanks and hopefully I've been clear on the details. If not, I will try updating this more tonight.

ASKER CERTIFIED SOLUTION
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spiderwilk007
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dennisbbb

If you only have two drives with c:\ and f:\, I do not think it's on a raid configuration. If that being the case, it will be easy to replace these drives by imaging them individually with Clonezilla.
http://clonezilla.org/downloads.php

On the other hand, if it is in fact on two-disk Raid 0. You will need to back the entire system up with TodoBackup

As for system upgrade, it depends on your budget. Personally I think it's time to upgrade to a new system with Raid 5 redundancy to protect your system from single-harddisk failure.
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ASKER

Thank you all for the replies and answers. My manager chose to go with replacing the failed parts rather then purchasing  a new server. Followed both the first and second solution to determine the faulty drive.

The hardware will arrive Monday and RAID appears not to be active (unless we overlooked something).
The delay in closing the question was due to waiting on my manager to make the call. And above, it was the first and third solution. Thanks again.