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RAID build failure with different sized drives?

M

micrors4racer

n00b
Joined
Aug 12, 2006
Messages
41
I have a spare Dell PowerVault 745n that works fine with the original identical 80gb drives. I am trying to use some random drives that I have so I can make a raid 5 array. I know that it will only use the smallest drives capacity in all the drives and that is fine. I have a 640GB, and 3 500GB drives all from different brands. I combined them all in a raid 5 that is 1.3TB but one of the drives will have an error and becomes greyed out on the dell raid card management. At first I thought it was a bad drive but I replaced it with a known good one and it still fails to build the whole array. I do not have an OS installed yet so this is all low level configuration.

The card that I am using is a Dell CERC SATA 1.5/6CH which seems to be an OEM adaptec. It has a hardware limit of 2TB per array and I am not yet there so it can't be the issue. People have also reported running 750gb drives on that and none of my drives are that big.Any body have experience with a raid array using non identical drives?
 
Is it a sas raid card and are you using sata drives? It could be a drive time out problem?
 
xx0m3gaxx said:
Is it a sas raid card and are you using sata drives? It could be a drive time out problem?
Click to expand...

How would i change the time out on the drive? I don't see anything in the array configurator. And it is a SATA raid card and the drives are also SATA.
 
Could you give the model number of your card?

Some cards will skip the drive or say its missing failed if it doesn't reply back to the card in time Some cards have the option to change the delay to allow the drives to fully boot before they say if they are there or missing.
 
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