Help - RAID 5, four drives, wrong size

G

GlimmerMan

Gawd
Joined
Feb 13, 2005
Messages
982
I'm trying to set up a RAID5 using four 1 TB drives.
When I configure with all four drives, MediaShield and Windows reports 746.5 GB.
But when I configure with only three drives, MediaShield reports 1.8 TB.
Thanks.
 
Whats 'MediaShield' ? never heard of it
Your using a hardware raid card, onboard/fakeraid or software raid?

first one is the one you should use, the other two are risky....
 
is that a windows only setup, or can you configure the raid in the BIOS screens?
 
MediaShield is the utility to set up the raid. You hit F10 during BIOS to enter the utility
 
Do you have the latest bios for your MOBO installed? There may be a size limit on the Raid for your controller. I would go see Tyan has a forum section on their website, and see if this problem has been brought up before.

Don
 
Yes, latest BIOS.
Seems like nforce raid is limited to 2TB. That is probably the problem.
Thanks
 
Many RAID controllers are limited to 2TB for the maximum array size. This was a limitation of the SCSI standard. Newer SATA/SAS controllers are capable of surpassing the 2TB limit however, so the question for your RAID controller becomes, is it using older SCSI standards or newer SATA/SAS standards, as you said you are being limited to 2TB so that answer seems clear

And I realize you are probably not using SCSI drives
 
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