[lkml]   [2002]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Two hdds on one channel - why so slow?
    ---------  Received message begins Here  ---------

    > In article <> you wrote:
    > > In my experience, SCSI is not cost effective for systems with a single disk.
    > > As soon as you go to 4 or more disks, the throughput of SCSI takes over unless
    > > you are expanding a pre-existing workstation configuration.
    > IDE Scales fine to 8 Channels (aka 8 Drives). Anything more than 8 Drives on
    > an HBA is insane anyway.
    > I love the FC-to-IDE(8) Solution. You get Hardware Raid with 8 Channels, each
    > drive a didicated channel, thats much more reliable than usual 2 or 3 channel
    > SCSI Configurations.
    > Do you realy run more than say 10 hard disk devices on a single SCSI Bus,
    > ever?

    Only place I've seen that (not sure it was true SCSI though) was on a
    Cray file server - each target (4) was itself a raid 5, with 5 transports.
    That would be total of 20 disks. The four targets were striped together in
    software to form a single filesystem. I think that was our first over 300GB
    filesystem (several years ago). Now we are using 1 TB to 5TB filesystems
    with nearly 5 million files each.

    Jesse I Pollard, II

    Any opinions expressed are solely my own.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:15    [W:0.020 / U:6.608 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site