https://community.hpe.com/t5/disk-enclosures/can-not-detect-storage/m-p/2490029#M1157 Might try updating the controller firmware, but it's NOT a good idea to try to go backwards with array controllers. If you move up to a 3200, we can not guarantee you can go back to a 221.<BR /><BR /><A href="http://www5.compaq.com/support/files/server/us/download/9434.html" target="_blank">Array Controller ROMPaq</A> Wed, 07 Feb 2001 00:00:00 GMT Ayman Altounji 2001-02-07T00:00:00Z https://community.hpe.com/t5/disk-enclosures/can-not-detect-storage/m-p/2490028#M1156 Hi there, <BR /> I have two servers PL 2500. Each server contains one smart 221 <BR /> which connected to its own storage. Few days ago, for some reason <BR /> I move those two storages to other place, and connected one <BR /> storage to array 3200 and the other one to intergated array for <BR /> migration data. After migration, I connected those storage with its original smart array 221 my server just can not detected any logical <BR />drive. While I reboot server, there is an error message shown as <BR />follow: " External cable Atteched to Wrong SCSI port connectors". <BR />However, by using ACU, Storage can be detected. But, there is no logical drive. Tue, 06 Feb 2001 00:00:00 GMT https://community.hpe.com/t5/disk-enclosures/can-not-detect-storage/m-p/2490028#M1156 Ayman Altounji 2001-02-06T00:00:00Z https://community.hpe.com/t5/disk-enclosures/can-not-detect-storage/m-p/2490029#M1157 Might try updating the controller firmware, but it's NOT a good idea to try to go backwards with array controllers. If you move up to a 3200, we can not guarantee you can go back to a 221.<BR /><BR /><A href="http://www5.compaq.com/support/files/server/us/download/9434.html" target="_blank">Array Controller ROMPaq</A> Wed, 07 Feb 2001 00:00:00 GMT https://community.hpe.com/t5/disk-enclosures/can-not-detect-storage/m-p/2490029#M1157 Ayman Altounji 2001-02-07T00:00:00Z