as long as you have enought capacity in the raid group it does not matter how many disks it contains. Try to enter this value in blocks  [IMAGE]
Disk /dev/emcpowerc: 1099.5 GB, 1099511627776 bytes255 heads, 63 sectors/track, 133674 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes         Device Boot      Start         End      Blocks   Id  System/dev/emcpowerc1               1      133674  1073736373+  83  Linux.....Disk /dev/emcpowerd: 984.7 GB, 984756256768 bytes255 heads, 63 sectors/track, 119723 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/emcpowerd doesn't contain a valid partition table.....   The problem is that last LUN is introduced recently. On navisphere  EMC manager 6.26.24. both LUNs are of disks of  456,6GB capacity. Both are SATAII and RAID10. The first LUN is  with 14 Disks, while the second one is with 4 disks. The LUNs (Drives)  are not seen as if they are the  same capacity, although there is not much of difference between their capacity.   The first one is with user blocks: 2147483648 User capacity: 1024 GB Raw Capacity 2048GB   The Second one:   The first one is with user blocks: 1923352064 User capacity: 917.126 GB Raw Capacity 1834.251GB  Why they are not of the same capacity?
Two Equally LUNs are seen the same way by the system