Hello Stuart, The error that you are getting is in reference to an error with the expansion enclosure that is connected to your MD3200.  The error is in the first MD1200 that is connected to your MD3200.  I would check all your connections on the MD1200 & make sure that all are tight & secure.  If you are still getting the error after reseating all connections then I would pull a support bundle and I can review it for you.   Please let us know if you have any other questions.
Hi, I have an error reported by MDSM. I rarely reboot this device but when I do this error gets reported within 24 hours, gets immediately cleared and doesn't return. Until now. Rebooted on Monday and this error has appeared and dissapeared three times now (once per 24 hours although the timing is not uniform). Here's the log dump for the last appearance: Date/Time: 20/03/14 00:05:20 Sequence number: 7838Event type: 280DEvent category: InternalPriority: CriticalEvent needs attention: trueEvent send alert: trueEvent visibility: trueDescription: Expansion enclosure component failed or removedEvent specific codes: 0/0/0Component type: Enclosure Component (EMM, GBIC/SFP, Power Supply, or Fan)Component location: Enclosure 1, Slot 2Logged by: RAID Controller Module in slot 0 This got cleared within seconds with no noticeable effect on the storage, which was under minimal load. Should I be worried? Thanks Stuart  
MD3200 - Critical Error - Expansion Enclosure component failed or removed