How to clean EMC CX 3-80 Dirty Cache?
For the past weekend, it’s a really a nightmare for me. My office EMC Clariion CX3-80 storage box was crash(halt) and LUNs was not accessible for more than fourty over servers included Asia Pacific and Europe region.
The storage box forced to reset and found dirty cache on certain LUNs. Here I would like to share how to list and clear dirty cache.
List LUNs cache
# cd /opt/Navisphere/bin
./navicli -h 192.168.1.1 luncache -list
OR you can save the output into temporary location.
./navicli -h 192.168.1.1 luncache -list > /tmp/listluncache
Note: IP Address 192.168.1.1 is referring to your SPx controller IP Address.
Open /tmp/listluncache and search for word “YES”
# view /tmp/listluncache
For an example, you will see:
LOGICAL UNIT NUMBER 4912
LUN Offline (Cache Dirty Condition): YES
LOGICAL UNIT NUMBER 4913
LUN Offline (Cache Dirty Condition): YES
Read more
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