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  3. April 2010

Use mixed sizes drives in the same Raid string

I'va a customer using 87% of the installed disks (246 Gb) so I have to find
how to increase the total amount of disk space without an expansion unit (no
available slots for new disks).

The machine is a 9405-520, the controller a 573D-001 with 8 disks (4326),
Raid5 is active. Total available space is 246 Gb.

My 1st question: may I mix in the same raid set drives with diffrent
capacity (eg. 36 and 70 gb)?

If posssible should I expect any perfomance problems?

If not possible should I split the raid in two strings (eg. 4x4326 and
4x4327) or I must change all the drives?

Any suggestion is much appreciated.

TIA

MarcoF

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