Configuring LUNs

We mentioned earlier that sometimes LUNs need to be configured (although this is normally only for special cases and should include all the instructions required). The change itself is very simple since the only thing we need to do is edit the kernel configuration file for the SCSI disk driver—/kernel/drv/sd.conf.

An example of this type of requirement would be for some hardware RAID units. Often, a single SCSI ID is allocated to the disk cabinet as a whole—for example, target 4, which means the cabinet itself would be seen as t4. This can then be configured as a number of logical disks (LUNs), which would be seen as t4d0, t4d1, t4d2, and so forth.

If we assume that the device supports up to eight logical disks, we could include ...

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