I have CE590 together with Cisco's Storage array with 6 HDD.Software Release: CE ver 2.51 (Build: FCS 05/24/01)It unmount some disks after 10-20 hours of working:ce-rtk#sh cfs volumes/c0t0d0s3: mounted/c0t1d0s3: mounted/c0t2d0s3: not mounted/c0t3d0s3...