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HANDLING CONFIGURATION CHANGES

Last Updated: Mar 15, 2018 04:36PM PDT
After volumes have been added, deleted, or resized, it is important to rescan LUNs on each affected initiator system. The most convenient way to rescan LUNs is by running the rescan-scsi-bus.sh script.
For example:

# rescan-scsi-bus.sh --forcerescan --hosts=34
Scanning SCSI subsystem for new devices
and remove devices that have disappeared
Scanning host 34 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
Scanning for device 34 0 0 0 ...
OLD: Host: scsi34 Channel: 00 Id: 00 Lun: 00
                Vendor: FUSIONIO Model: ION LUN       Rev: 3243
                Type: Direct-Access                            ANSI SCSI revision: 05
0 new device(s) found.
0 device(s) removed.


NOTE: Failure to rescan LUNs after having reduced the size of a volume may lead to data loss.

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