Hello Samir,   If you have another spare, move it to that slot that the drives are failing in.    If that fails then it's a problem with the slot.   If you are not at the most current 7.x firmware, now would be a good time to do so.  Or if you can manually failover controllers, then try the slot again.   It will likely be fine then.  Regards, 
So...I have a storage pool with two members (both EqualLogic PS6500e). One HDD failed, one of spare HDD took over and reconstruction of RAID completed in about 7hr. I went to replace failed HDD but when I did received following error: "Enclosure 0, drive 26 has failed to spin up in 33 seconds. Drive has failed" I tried 2 other new HDD and still received the same warning message and disk status remains "failed". Any suggestion? Thank you in advance! Saimir
Drive xx has failed to spin up in 33 seconds. EqualLogic PS6500e