Hi all, When I run hdparm -I on a local device (CDROM) I get...
/dev/sr0: ATAPI CD-ROM, with removable media Model Number: TSSTcorp BDDVDW SN-506BB Serial Number: R90H6YLG7000QR Firmware Revision: SB00 Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0 Standards: Likely used CD-ROM ATAPI-1 Configuration: DRQ response: 50us. Packet size: 12 bytes cache/buffer size = unknown Capabilities: LBA, IORDY(can be disabled) DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns Commands/features: Enabled Supported: * PACKET command feature set * Look-ahead * DEVICE_RESET command * NOP cmd Removable Media Status Notification feature set * Gen1 signaling speed (1.5Gb/s) * Host-initiated interface power management * Phy event counters Device-initiated interface power management Asynchronous notification (eg. media change) * Software settings preservation However when I run hdparm -I on the same device connected via open-iscsi, I get... /dev/sr1: SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ATA device, with non-removable media Standards: Likely used: 1 Configuration: Logical max current cylinders 0 0 heads 0 0 sectors/track 0 0 -- Logical/Physical Sector size: 512 bytes device size with M = 1024*1024: 0 MBytes device size with M = 1000*1000: 0 MBytes cache/buffer size = unknown Capabilities: IORDY not likely Cannot perform double-word IO R/W multiple sector transfer: not supported DMA: not supported PIO: pio0 I have tried with open-iscsi initiator and both scst-iscsi (latest svn version) and tgt (from repository) with the same results. It is probably the same problem that is causing the CDROM to be detected as scsi1 and not as scsi3-mmc and prevents MMC/AACS playback via bluray since the kernel detects CDROM capabilities in a similar way. Is this a problem in open-iscsi (initiator), the target drivers (scst-iscsi / tgt) or something connected (e.g. incomplete emulation of MMC command set)? How can I fix this? Best, Alex -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at https://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/d/optout.