Messages in this thread | | | Subject | Re: [PATCH v2] libata: Simulate REPORT LUNS for ATAPI devices | From | James Bottomley <> | Date | Wed, 13 Dec 2006 11:57:25 -0600 |
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On Wed, 2006-12-13 at 09:38 -0800, Darrick J. Wong wrote: > Sorry, I should have clarified this earlier--the Quantum GoVault is a > removable disk drive, not a CD-ROM. The device is reminiscent of Zip > disks, but the cartridge is a sealed unit and contains a 2.5" SATA disk > inside; hence it's not a CD-ROM. So the patch below won't work for me, > because sdev->type == TYPE_DISK.
So it's a SATAPI device of type 0 ... that's fun ... but it still needs a blacklist; it's governed by SBC which isn't ambiguous about the need to support REPORT LUNS. Now, if it supported RBC instead of SBC, that's different; RBC also makes REPORT LUNS optional. However, it is required to indicate RBC support by being type 0xe.
> I wonder if the same sort of REPORT LUNS screw-up might apply to other > ATAPI devices too, such as tape drives. Since we've seen that > manufacturers of CD-ROMs and removable disks don't implement it, it > would not surprise me if the other ATAPI devices don't either. But, > that's speculation on my part.
James
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