Linux And SCSI Hotplug
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- Until recently, Linux's SCSI disk layer discovered new devices when the
HBA driver was loaded into memory.
- For normal usage that means only during system boot.
- In a SAN Environment, disks are added without shutting servers down. Thus,
we want to discover new SCSI disks without a reboot.
- In kernel 2.6.12, the SCSI disks layer was given the ability to discover
new disks in a plug&play manner.