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Thread: Disk layout on 5 drive Power Edge 2650

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    jonnyRo is offline Project Contributor
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    Default Disk layout on 5 drive Power Edge 2650

    I have a Dell Power Edge 2650 server that i'm currently using to host zimbra.

    It's currently running centos on a Raid 5 configuration, which I know sucks.

    The unit has five drives that can be set up in either raid 0, raid 1, raid 5, or even plain single volumes.

    How would you recommend I set up the disk layout, and the final partition layout to achieve the best performance with zimbra. I noticed that CentOS set up the root on a giant logical volume, and the performance on this has felt pretty low.

    Should I just manually set up the partition layout I want on the new server, what layout would you recommend?

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    Klug's Avatar
    Klug is online now Moderator
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    The "best" would be (IMHO) RAID 0+1 with one spare.

    But it also depends on own many users you'll have (and what kind of users) with which quota...

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    jonnyRo is offline Project Contributor
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    I have 30 users.

    The issue with the dell raid controller is that it wont let me do raid 0+1, I have the choice of creating either raid 1 volumes or raid 5 volumes. It does not support spares.

    I am thinking two Raid 1 volumes would be sufficient. And leave the 5th drive for backups as a standalone volume.

    I could put /opt/zimbra on one raid 1 volume and the system install on another.

    Bummer this server has only 80GB disks.

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    Klug's Avatar
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    For 30 users with "standard" mail usage (not thousands of incoming emails per day), I'd stay with RAID5...

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