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Thread: Zimbra and Mac Mini with Firewire RAID

  1. #1
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    Default Zimbra and Mac Mini with Firewire RAID

    Just curious, what do you think of this configuration and how many email accounts do you think it would support?
    10
    100
    1000
    10000?

    Mac Mini 1.83 Core Duo
    2 GB RAM
    Lacie Firewire RAID 10 with 7200 RPM ATA 133 drives.

    This is about a $2000 setup and I am curious how viable it would be.

    Thanks

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    From a performance and scalability perspective your limitation is going to be the FireWire 400 interface on the Mac Mini. It will only sustain about 35-40MB/sec no matter how many spindles you put behind it. This compares to 25-30MB for the internal 5400 RPM drive on sustained transfers. Obviously the 7200 RPM drives will be better for a mail system as well as the fact that you get some redundancy with the RAID.

    I may be wrong but I thought that LaCie products did RAID 0+1 not RAID 10, there's a subtle difference in fault tolerance between the two.

    Account scalability is obviously dependent on average usage and mail throughput, a rough guestimate would be less then 30 active users.

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    Quote Originally Posted by brian View Post
    From a performance and scalability perspective your limitation is going to be the FireWire 400 interface on the Mac Mini. It will only sustain about 35-40MB/sec no matter how many spindles you put behind it. This compares to 25-30MB for the internal 5400 RPM drive on sustained transfers. Obviously the 7200 RPM drives will be better for a mail system as well as the fact that you get some redundancy with the RAID.

    I may be wrong but I thought that LaCie products did RAID 0+1 not RAID 10, there's a subtle difference in fault tolerance between the two.

    Account scalability is obviously dependent on average usage and mail throughput, a rough guestimate would be less then 30 active users.
    I think you are right about the 0+1

    That is still good to know.
    If ,for a 25 user office, a $200 setup would be sufficient, that would be awesome.
    Also, if the Firewire bus was the bottlekneck, then maybe 2 drives in a software mirror would be better than the more expensive RAID cost-wise.

    That would bring it down to under $1500.

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