iostat -En command - meaning of columns

From: Bradley Alan (ABradley_at_omam.com)
Date: 10/31/03

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    To: sunmanagers@sunmanagers.org
Date: Fri, 31 Oct 2003 11:11:15 +0200

    Hi All,

    Apologies for what may be a simple question - I have searched on google and
    not found a satisfactory answer.

    I would like to know what the meaning of the iostat columns are, for
    example, if I had the following output:

    sd3 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
    Vendor: HITACHI Product: OPEN Revision: 5246 Serial No: 532624
    Size: 7.38GB <7383859200 bytes>
    Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
    Illegal Request: 0 Predictive Failure Analysis: 0

    What would it mean if I had a 1 under "Soft Errors" or under "Transport
    Errors" or under "Soft Errors" AND under "No Device", etc. ?
    If you can point me to a link explaining things that would also be great.

    Thanks. I will summarise.

    Regards.

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