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Cisco Bug: CSCtd90345 - AIX Hosts Report "Overlapping Commands Attempted" When Using IOA

Last Modified

Mar 16, 2016

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases


Description (partial)

Hosts running TSM experience read/write errors with IOA Tape acceleration is enabled.

TSM is always sending UNTAGGED commands and IOA sends its own commands
such as READ, SPACE6, REWIND, etc. for Read Acceleration as SIMPLE commands.
Under this condition of a mixed of UNTAGGED and SIMPLE commands an overlapping
ocurrs due to out-of-order commands and Tape Drive sends a Reject.

Workaround(s): Resolved in 4.2(3a) and 5.0(1a).
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Bug Details Include

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