Hi Sam, Sorry didn't receive a notification about your reply.  Unfortunately we do not have a support bundle of the system before the upgrade. I am glad to report though that the issue has been resolved. waited for a few days before updating to be sure. We noticed the next battery learn cycle was around 4 weeks ahead and so we wished to start it immediately to make sure that if a battery issue existed, we would tackle it. We ran the command  set storageArray learnCycleDate daysToNextLearnCycle=0; This started the learn cycle almost immediately. This was done at around 8:00pm and the issue was resolved when we checked the next morning. Brian
Hi, we have an MD3620F, dual controller, which we have updated the firmware to the latest version available in the DELL website. Details below :  Current configurationFirmware version: 08.20.24.60 Appware version: 08.20.24.60 Bootware version: 08.20.24.60 NVSRAM version: N26X0-820890-908 Ever since the update, the system has been performing very poorly. wWe noticed that the virtual disks write cache is suspended as seen below: Read cache: Enabled Write cache: Enabled (currently suspended) Write cache without batteries: Disabled Write cache with mirroring: Enabled (currently suspended) The system is marking everything as optimal and batteries are o.k We have reset the controllers one by one and even performed a whole system shutdown. The problem is still there. If we tick the box to enable Write cache without batteries, the system performs normally. We also did a mass disable and enable of both read and write cache. Any help in resolving this would is appreciated as we have run out of ideas. Thanks in advance 
MD3620F Cache enabled but currently suspended