Re: ICRC error?

From: Brandon S. Allbery (allbery_at_ece.cmu.edu)
Date: 06/26/03

  • Next message: John Bäckstrand: "Mbuf Clusters on 4.8" 
    To: "Julian C. Dunn - Lists" <lists@aquezada.com>
Date: 25 Jun 2003 19:45:15 -0400

    On Wed, 2003-06-25 at 19:35, Julian C. Dunn - Lists wrote:
    > > Now what does this mean?
    > > I also wonder why it says that it found ad2 as UDMA100 since it is actually
    > > an UDMA33 disk?
    >
    > Euh... which one is your new disk? It would seem to me that the 60GB
    > drive i.e. ad0 is the newer one? Unless you're in the habit of buying
    > disks that are smaller than your existing setup. In any case, according
    > to Seagate
    > (http://www.seagate.com/support/disc/specs/ata/st340016a.html) your ad2
    > drive *IS* UDMA100.
    >
    > But it sounds like the disk is bad. I usually get these errors when the
    > drive is dying.

    ICRC is "interface CRC", as opposed to data CRC; if you're getting only
    ICRC errors and not data CRC errors, it usually points to bad cabling,
    *not* to a bad disk. I suggest you make sure you're using an
    ATA100-rated cable and that the total cable length is within ATA100
    limits. 

    -- 
brandon s allbery [openafs/solaris/japh/freebsd] allbery@kf8nh.apk.net
system administrator [linux/heimdal/too many hats] allbery@ece.cmu.edu
electrical and computer engineering                              KF8NH
carnegie mellon university  [better check the oblivious first -ke6sls]
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