The first 5 drives in the enclosure starting from the left are the array Operating System Drives - these you must be very careful with. From the picture it looks like 4th drive is faulted (this would be Bus 0 Enclosure 0 Disk 4 or 0-0-3).  The drives used are from EMC and are formatted with a special format that is not standard, so you must get a replacement that is an EMC disk. There should be a part number on the front of the disk. The position of the drives is also very important - you can not take one of the first 5 disks and move it to another position or the whole array will stop working.  There should be an EMC Partner located in Mexico - they should be able to help with replacing the disk that failed based on the part number.  glen
Hi We have an enclosure CX3-10 and failed 2 disks, 1 of the first grupo of disk (from left to right) an other of the other grupo (see picture) I hope to know news [IMAGE]
CX3-10 Hard Disks