Re: load balancing at fastmail.fm

From: David Carter (no email)
Date: Mon Feb 12 2007 - 14:01:56 EST

  • Next message: Rob Mueller: "Re: load balancing at fastmail.fm"

    On Mon, 12 Feb 2007, Marten Lehmann wrote:

    > because NFS is the only standard network file protocol. I don't want to
    > load a proprietary driver into the kernel to access a SAN device.

    Fair enough, although NFS is likely to be really rather slow compared to a
    block device which just happens to be accessed via a fibre channel link.

    I would be surprised if NFS worked given that it is only a approximation to
    a "real" Unix filesystem. Cyrus really hammers the filesystem.

    >> I've heard horror stories about all the common Linux filesystems and I've
    >> personally watched fsck.ext3 (supposedly the safest option) unravel a
    >> filesystem, with thousands of entries left in lost+found.
    >
    > ext3 with journal? I have never experienced this.

    It was in a RAID set which had had a dodgy disk, but there was a definite
    urk moment when I saw what fsck had done. Fortunately not critical data.

    >> ZFS looks nice.
    >
    > Well, but you are on your own because this project for linux is pretty
    > young.

    I don't have any problem with OpenSolaris, though it would be a little
    amusing given that we moved from Solaris to Linux about 4 years back.

    -- 
    David Carter                             Email: 
    University Computing Service,            Phone: (01223) 334502
    New Museums Site, Pembroke Street,       Fax:   (01223) 334679
    Cambridge UK. CB2 3QH.
    ----
    Cyrus Home Page: http://cyrusimap.web.cmu.edu/
    Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
    List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
    

  • Next message: Rob Mueller: "Re: load balancing at fastmail.fm"





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