DS4800 Degraded Drive Channel
有台DS4800，连的P570和x服务器，双控做的RDAC。现在提示Channel 2 Degraded，我们清除了链路噪音后对此通道设置为optimal。报错就消失了但随之就出现Drive time out，同时所有的业务也中断了。现在只能手动将Channel2 Degraded，同时所有的lun切到B控上，业务才能正常运行。请教下...显示全部
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这个微码有点缺陷，升级微码或许能解决问题。
ftp://service.boulder.ibm.com/es ... 00_anyos_anycpu.txt
2. Interoperability problem between the Tachyon DX2 chip in the DS4500 and
the DS4300 storage subsystem controllers and the Emulex SOC 422 chip
in the EXP810 expansion enclosure ESMs causing up to 5 Fibre Channel
loop type errors to be posted in the DS4000 storage subsystem Major
Event Log (MEL) during a 24 hour period. There is a small window in
the SOC 422 chip that multiple devices can be opened at one time.
This ultimately leads to Fibre Channel loop errors of Fibre Channel
link up/down, Drive returned CHECK CONDITION, and Timeout on drive
side of controller. IBM recommends the use of the Read-Link-Status
function to monitor drive loop for any problems in the drive
loop/channel. There is no work-around.
ftp://service.boulder.ibm.com/es ... 00_anyos_anycpu.txt
2. Interoperability problem between the Tachyon DX2 chip in the DS4500 and
the DS4300 storage subsystem controllers and the Emulex SOC 422 chip
in the EXP810 expansion enclosure ESMs causing up to 5 Fibre Channel
loop type errors to be posted in the DS4000 storage subsystem Major
Event Log (MEL) during a 24 hour period. There is a small window in
the SOC 422 chip that multiple devices can be opened at one time.
This ultimately leads to Fibre Channel loop errors of Fibre Channel
link up/down, Drive returned CHECK CONDITION, and Timeout on drive
side of controller. IBM recommends the use of the Read-Link-Status
function to monitor drive loop for any problems in the drive
loop/channel. There is no work-around.