In the previous post, Alex had responded:- This will not solve the issue I've described above. When SDS starts up, it reads all the available devices looking for ScaleIO signature. It receives the list of the devices from /proc/partitions Since /proc/partition contains the devices /dev/sd*, it won't be able to find the sdm devices, and will report on it a a missing devices.  Please make sure  you address this issue as well
Hi  I can use the serial number of the device ?  Ex: /dev/disk/by-id/scsi-3600508b1001cb7cedf9547ec3eabfd5c  So do not use letters. Ex: /dev/sdm, /dev/sdz  I added a device with serial number no problem as follows:         19: Name: SAS_DEV_SDM  Path: /dev/disk/by-id/scsi-3600508b1001cb7cedf9547ec3eabfd5c  Original-path: /dev/disk/by-id/scsi-3600508b1001cb7cedf9547ec3eabfd5c  ID: 4938d7a200020012                 Storage Pool: ISBAN_POOL_01, Capacity: 1116 GB Error-fixes: 0 scanned 368 MB, Compare errors: 0 State: Normal  
ScaleIO 1.32 - Configuration SDS Device with Serial Device