RE: Logical Block Addresses in SCSI

[Black_David@emc.com]

> I have mounted a remote directory and created a file. So this will
generate 
> SCSI WRITE CDBs that contain Logical Block Addresses (LBA) which is 
> encapsulated in an ISCSI command PDU. How did SCSI at the local system 
> generate a valid LBA for the remote disk?

SCSI didn't - the filesystem at the local system read the filesystem
metadata and the directory and decided what blocks to use for the file
you created.  The LBA numbers were generated by the filesystem.  SCSI
doesn't understand the concept of files.

Thanks,
--David
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David L. Black, Senior Technologist
EMC Corporation, 42 South St., Hopkinton, MA  01748
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