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amedina

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Hi all,
I know this is an OT, but as some of you have done this before, I'would like to know your suggestions. I need to change my Internal RAID 5 disks in the server I have Kerio installed, from SAS 7.2K RPM to SAS 15K RPM. I would like to know the procedure you used to change the disks (I have 6 disks). The change is done disk-by-disk and wating the server to rebuilt the unit?

Thanks and sorry for the OT.
Amedina
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elias

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Depending on your hardware, you should be able to do that. But I'd recommend if you're going to change your array like this, that you also migrate to RAID 10. While different RAID implementations will behave differently under various types of loads, migrating to RAID 10 will probably give you more performance than upgrading your disks. Of course, if you can, you should do both. But the write overhead of RAID 5 can be so severe that you might find that even with substantially faster disks, you don't get much improvement.

-Elias
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