-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2/13/2013 7:06 AM, Hannes Reinecke wrote: > But unfortunately it failed the reality check; of my zoo of storage arrays > only NetApp OnTap 8.X and HP P2000 supports the REPORT SUPPORTED TASK > MANAGEMENT FUNCTIONS command. None of the others (HP EVA, NetApp E-Series, > EMC Clariion CX-3) do. I'm not really surprised. I've had better luck with devices that report compliance with more recent versions of the specification. Of the those, I would guess slightly more than 50% support it. That includes tape drives, changer devices, and raid controllers. Of the ones I've tested that support it, they almost always report 0xDA for the first byte. Which correspond to abort task, abort task set, clear task set, lun reset and target reset. The patch also includes some "reasonable" defaults based on SCSI version, which I think vastly improves the overall error handling situation. Querying the device is just the last little icing. But its a chicken and egg thing, the command is optional, hardly anyone sends it, so few of the device manufactures have implemented it. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRG7VFAAoJEL5i86xrzcy7TjwH/R/V52LW66OPSwWVJHjVcbM/ ZQ7ekWZ48oKy4zQrCjpyKMFXqsH5gsMinoruUhiu/Zt8kmef88jti+aMe1RDyCbp L2fFc5lUOIpHFkzWXCykq8f9ZDcxIi8cLcCR08S71gTZqo/E0gVqYKEzInXtATCQ HK9yjX7g3FkzYVl9ASiLeBPUT4/kk7IhN+iagc0S+VY8zBG/+jQC9RykenbnAUU1 YLmWsWmzyWiTshk+vmBBpcikk+EEnB25NXZz6cqDSWGcm/wWq4Mcj9i6KvC9tKSr PzW+0/T2LtedGCTZKnFgNsn1jMJtjId+soAt5Ho4nZD+BHYcr2iSckzWxX3defs= =hDMi -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
