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Old April 3rd 08, 05:04 PM posted to comp.arch.storage
morales
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Posts: 3
Default changing disk size in RAID 5

Hi,

At job we have an HP Proliant DL380 G4 High Performance with a RAID 5
array with 4 SCSI disks with 36.4 Gb capacity each one.

Last week one disk failed and the RAID 5 is working without one disk.
My problem and doubt is that HP is not selling anymore 36.4Gb disks,
just 72Gb or 142 Gb disks. My question is: What happen if I change the
disk falied and I replace with a 72 Gb one?

Can I change one disk with different size than the others 3 in RAID
5?

The theory says that RAID 5 is possible with different size disks, but
I think that is possible IF is just at the beginning when we create
the array, or am I wrong?

Thanks for your help

Roberto Morales