解决方法:实际上,盘阵上也没有报硬盘的错误,交换机也正常,经过检查,最后修改了chdev -l hdisk6 -a rw_timeout=1000(这个值有点偏大)解决了此问题
环境是AIX5200-04,DS4300盘阵,F08光纤交换机
故障现象:
升级AIX的5200-06的补丁之后,系统开始频繁地报
LABEL: FCP_ARRAY_ERR4
IDENTIFIER: D5385D18
Date/Time: Thu Mar 9 07:31:15 BEIS
Sequence Number: 729
Machine Id: 0056A67D4C00
Node Id: hrip_mz
Class: H
Type: TEMP
Resource Name: hdisk6
Resource Class: disk
Resource Type: array
Location: U0.1-P2-I5/Q1-W200500A0B816965B-L0
Description
ARRAY OPERATION ERROR
Probable Causes
ARRAY DASD MEDIA
ARRAY DASD DEVICE
Failure Causes
DASD MEDIA
DISK DRIVE
Recommended Actions
PERFORM PROBLEM DETERMINATION PROCEDURES
这样的错误,实际上,盘阵上也没有报硬盘的错误,交换机也正常,经过检查,最后修改了chdev -l hdisk6 -a rw_timeout=1000(这个值有点偏大)解决了此问题.经过求证,在网上找到一个类似的说明:
Early vendor support recommendation is to increase rw_timeout, as they judge it as characteristic of a long fibre connection, but cables are only 15 metre, and due to its nature, we are loathe
to start performing outages just to tweak settings that shouldn't be causing issue.