Sun Storage 3310 SCSI Array: Resolving SCSI Bus Resets and Transport Errors When Using the Ultra320 Host Bus Adapter (Doc ID 1012309.1)

Last updated on APRIL 03, 2023

Applies to:

Sun Storage 3310 Array - Version Not Applicable and later
All Platforms

Symptoms

This document describes how to identify and resolve SCSI bus resets and transfer rate problems on systems connected to a Sun Storage 3310 SCSI Array or Sun Storage 3310 JBOD via an Ultra320 host bus adapter (HBA). Symptoms may include entries in /var/adm/messages such as:

ASC: 0x29 (power on, reset, or bus reset occurred)
Target x reducing sync transfer rate
Target x reverting to async mode

These messages could be accompanied by read/write errors such as:

Changes

Cause

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Sun Storage 3310 SCSI Array: Resolving SCSI Bus Resets and Transport Errors When Using the Ultra320 Host Bus Adapter (Doc ID 1012309.1)

Applies to:

Symptoms

Changes

Cause

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