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SubjectThe limitation of scsi target and lun supported under Linux?

Linux scsi support has max_id and max_lun defined in Scsi_Host structure.
Both of them are defined as "unsigned int" which is a 4 byte value.

Does Linux really be able to support defined bit number of device?
max_id could be 2^31 = 2G, and max_lun could be the same.

If not, what is the max supported scsi target id and lun?

Many thanks!


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