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1.15. Adding/Removing a Logical Unit Through rescan-scsi-bus.sh
The
sg3_utils package provides the rescan-scsi-bus.sh script, which can automatically update the logical unit configuration of the host as needed (after a device has been added to the system). The rescan-scsi-bus.sh script can also perform an issue_lip on supported devices. For more information about how to use this script, refer to rescan-scsi-bus.sh --help.
To install the
sg3_utils package, run yum install sg3_utils.
Known Issues With rescan-scsi-bus.sh
When using the
rescan-scsi-bus.sh script, take note of the following known issues:
- A race condition requires that
rescan-scsi-bus.shbe run twice if logical units are mapped for the first time. During the first scan,rescan-scsi-bus.shonly addsLUN0; all other logical units are added in the second scan. - A bug in the
rescan-scsi-bus.shscript incorrectly executes the functionality for recognizing a change in logical unit size when the--removeoption is used. - The
rescan-scsi-bus.shscript does not recognize ISCSI logical unit removals.
