[SLE] SuSE 9.2 and DPT/Adaptec RAID Report

From: L. Mark Stone (LMStone_at_rnome.com)
Date: 10/26/04

  • Next message: rotbau: "[SLE] SCSI tape drive hangs SUSE 9" 
    To: suse-linux-e@suse.com
Date: Tue, 26 Oct 2004 14:10:47 -0400

    Using the Live Evaluation CDROM (KDE only) for SuSE 9.2, I was pleased to see
    that, at least as far as I was able to test, SuSE have fixed the dpt_i2o
    module.

    After booting from the CDROM, I opened a command prompt and ran "modprobe
    dpt_i2o". The module loaded successfully, and all of the SCSI disks were
    seen correctly, comprising one RAID-1 array and two single SCSI disks. (Under
    9.0, at least one of the disks was seen twice; 8.2 was the last SuSE version
    that correctly supported this controller).

    I was able to copy and delete files on each of the disks with no errors. In
    total, I copied some 20GB of data across disks and onto the same disk(s).
    Throughput was comparable to what I see with the box running 8.2. Using the
    i2o subsytem on 9.1, file transfers this large (some files are 2GB in size)
    exposed a memory leak that would crash the system. I did not test the i2o
    subsytem on 9.2, nor even check that the i2o modules are available.

    I next unmounted the disks, rmmod'd dpt_i2o, and then ran YaST to see if it
    would detect the controller correctly. It did, and the dpt_i2o module loaded
    fine via YaST.

    In both cases after loading the module, SuSEWatcher noticed the "new" disks
    and offered to set them up for me by running YaST's partitioner module.

    The controller I used is a DPT 2865U3 RAID controller, in the same family as
    Adaptec 2100s. (Adaptec acquired DPT and repackaged their products as
    Adaptec's a few years ago).

    These few sample tests are encouraging, so I will be ordering 9.2 Pro to test
    further.

    I would like to hear from other DPT/Adaptec RAID users on this as well,
    please, if you don't mind downloading a few hundred MB and burning a CDROM.

    Thanks you, SuSE.
    Mark 

    -- 
__________________________________________________________
A Message From...  L. Mark Stone
Reliable Networks of Maine, LLC
477 Congress Street
Portland, ME 04101
(207) 772-5678
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