On 03/17/2016 12:39 AM, Hannes Reinecke wrote:
On larger installations it is useful to disable automatic LUN
scanning, and only add the required LUNs via udev rules.
This can speed up bootup dramatically.
This patch introduces a new scan module parameter value 'manual',
which works like 'none', but can be overriden by setting the 'rescan'
value from scsi_scan_target to 'SCSI_SCAN_MANUAL'.
And it updates all relevant callers to set the 'rescan' value
to 'SCSI_SCAN_MANUAL' if invoked via the 'scan' option in sysfs.
Hello Hannes,
Will setting scsi_scan_type to 'manual' allow a system to boot from a
SCSI disk? If not, are there alternatives to this approach? Would it be
a valid alternative to e.g. introduce a new threshold parameter such
that only LUN numbers below this threshold are scanned during boot?
Thanks,
Bart.
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