1 SCAN Format: SCAN 2 ALL Smart Array backplane RAID controllers using parallel SCSI expect to be connected to enclosures that have individual built in enclosure processors. These processors or Environmental Monitoring Units (EMUs) monitor fans, control LEDs and so on. The EMUs also provide information about hot-plug events available in the enclosure. The Smart Array controller is thus always aware of the insertion or removal of a SCSI disk drive when used with such type of enclosures, like MSA30. The 64xx series Smart Array card can also be cabled to the internal parallel SCSI drives on applicable I64 platforms. These drives are housed in an enclosure that is totally passive with respect to hot-plug event notification. The Smart Array controller cannot detect that a physical disk has been hot-inserted. If a RAID physical disk fails and must be replaced, the controller will not start the recovery process on the affected RAID volumes. SCAN ALL command sends a SCAN message to the Smart Array controller instructing the controller to scan SCSI buses and discover new or replaced disk(s). After the SCAN is complete, the REBUILD operation for the logical volumes will be initiated for all the UNITs configured in the disk group. This command is only applicable for the internal disk enclosure connected to the Smart Array on I64 platforms. Note: Refer to START RECOVER command for additional information on rebuild of volumes. 3 Parameters None 3 Qualifiers None 3 Examples MSA> SCAN ALL