硬盘报错的问题的解决

wuchengeng

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.


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/13719/showart_101499.html