DS3200 Loss of Path Redundancy求故障真象,直播啊！

我们公司有一台DS3200，只有一个主柜。昨天发现它有报错，现在把日志和现象发出来，请大家帮小弟分析一下问题：
配置：
1.DS3200，一个主柜，无扩展，12块136.732 GB　SAS
2.1－5 SLOT  ARRAY 1 (RAID 5)，6－11 SLOT   ARRAY 2 (RAID 5)，12 SLOT Hot spare standby
3.Disk Firmware A496,CONTROLLERS Firmware  06.70.69.00

现象：
系统灯黄色
其它灯正常（绿色），包括硬盘灯

sm日志：
Failure Entry 1: NO_REDUNDANCY_DRIVE
Details
Storage Subsystem: DS3200-01
Enclosure: Controller/Drive enclosure
Affected drive slot(s): 12
Service action (removal) allowed: No
Service action LED on component: Yes
Working channel: 1


Drive - Loss of Path Redundancy
What Caused the Problem?
A communication path with a drive has been lost. The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

Caution: Electrostatic discharge can damage sensitive components. Always use proper antistatic protection when handling components. Touching components without using a proper ground may damage the equipment.

Important Notes
Correct this failure as soon as possible. The drive is still operational, but a level of path redundancy has been lost. If the drive's other port or any other component fails on the working channel, the drive will be failed.
The Recovery Guru Details area reports the affected enclosure, drive, and the WORKING channel over which it can communicate with the drive.
The fault indicator light on the affected drive will be off because the drive has not failed.


服务器SMdevices命令：
C:\Program Files\IBM_DS\util>SMdevices.bat
DS Storage Manager Utilities Version 10.00.35.15
Built Mon Dec 13 08:10:51 CST 2010
(C) Copyright International Business Machines Corporation, 2003-2010 Licensed Material - Program Property of IBM All rights reserved.
US Government Users Restricted Rights - Use, Duplication, or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
  \\.\PHYSICALDRIVE1 [Storage Subsystem DS3200-01, Logical Drive pdisk1, LUN 0, Logical Drive ID <600a0b800049d5c60000010e48daf3bc>, Preferred Path (Controller-A): In Use]
  \\.\PHYSICALDRIVE2 [Storage Subsystem DS3200-01, Logical Drive pdisk2, LUN 1, Logical Drive ID <600a0b800049cd6c0000010c48daf3eb>, Alternate Path (Controller-A): Not In Use]
  \\.\PHYSICALDRIVE3 [Storage Subsystem DS3200-01, Logical Drive pdisk3, LUN 2, Logical Drive ID <600a0b800049d5c60000011048daf422>, Preferred Path (Controller-A): In Use]
  \\.\PHYSICALDRIVE4 [Storage Subsystem DS3200-01, Logical Drive pdisk4, LUN 3, Logical Drive ID <600a0b800049cd6c0000010e48daf457>, Alternate Path (Controller-A): Not In Use]
  \\.\PHYSICALDRIVE5 [Storage Subsystem DS3200-01, Logical Drive Access, LUN 31, Logical Drive ID <600a0b800049d5c60000000000000000>]
  \\.\PHYSICALDRIVE6 [Storage Subsystem DS3200-01, Logical Drive pdisk1, LUN 0, Logical Drive ID <600a0b800049d5c60000010e48daf3bc>, Alternate Path (Controller-B): Not In Use]
  \\.\PHYSICALDRIVE7 [Storage Subsystem DS3200-01, Logical Drive pdisk2, LUN 1, Logical Drive ID <600a0b800049cd6c0000010c48daf3eb>, Preferred Path (Controller-B): In Use]
  \\.\PHYSICALDRIVE8 [Storage Subsystem DS3200-01, Logical Drive pdisk3, LUN 2, Logical Drive ID <600a0b800049d5c60000011048daf422>, Alternate Path (Controller-B): Not In Use]
  \\.\PHYSICALDRIVE9 [Storage Subsystem DS3200-01, Logical Drive pdisk4, LUN 3, Logical Drive ID <600a0b800049cd6c0000010e48daf457>, Preferred Path
(Controller-B): In Use]

根据以上日志，请大家忙看一下报错的故障点在什么地方，要采取什么措施？

是不是要更换12slot的hot盘啊？

是