Any idea why a drive would fail to start self tests? Is this an acceptable course of action in certain circumstances (say, if the drive is busy)? We have a lot of drives that exhibit this behavior at random.


# /usr/sbin/smartctl -t short -d 3ware,2 /dev/twa0
smartctl version 5.33 [i686-pc-linux-gnu] Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Command "Execute SMART Short self-test routine immediately in off-line mode" failed: Input/output error


-___-----------------------------------------------------------------
| , |      ___   ___ _  -- Ryan P. Wright
| _/__  __/ _ \ |   | | -- MSCF Operations
|   \ \/ / /_\ \| | | | -- ryan.wright@pnl.gov
|_|\_\  /_/---\_\_|___| --
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