Hi It might be more an electrical than software question, sorry if somewhat OT. If I connect an external 100MB zip and an internal HP DDS-1 tape drive to the dc390 adapter, I can tar zip to the tape. If I connect them to the TRM-S1040 (dc315) it aborts with tar: /dev/st0: Wrote only 0 of 10240 bytes tar: Error is not recoverable: exiting now and in dmesg: dc395x: eh_abort: (pid#37555) target=<06-0> cmd=c5c16b40 dc395x: eh_abort: Command in progress<6>dc395x: eh_abort: (pid#37556) target=<06-0> cmd=c5f6ed00 dc395x: eh_abort: Command was waiting dc395x: eh_abort: (pid#37556) target=<06-0> cmd=c5f6ed00 dc395x: eh_abort: Command was waiting dc395x: eh_abort: (pid#37557) target=<06-0> cmd=c5c16040 dc395x: eh_abort: Command was waiting dc395x: eh_abort: (pid#37557) target=<06-0> cmd=c5c16040 dc395x: eh_abort: Command was waiting dc395x: eh_bus_reset: (pid#37555) target=<06-0> cmd=c5c16b40 dc395x: doing_srb_done: pids G:37555(06-0) dc395x: Target 05: Sync: 100ns Offset 15 (10.0 MB/s) st0: Error with sense data: <6>st0: Current: sense key=0x6 ASC=0x29 ASCQ=0x0 Separately accessing the zip and the tape works on TRM-S1040 too. The problem appears also if I just access the zip and the tape simultaneously from 2 processes not transferring the data between them. On loading the driver it reports: dc395x: Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08 dc395x: Used settings: AdapterID=07, Speed=0(20.0MHz), dev_mode=0x77 dc395x: AdaptMode=0x0f, Tags=4(16), DelayReset=1s dc395x: Connectors: int50 Termination: Auto Low High dc395x: Performing initial SCSI bus reset scsi3 : Tekram DC395(U/UW/F), DC315(U) - ASIC TRM-S1040 v2.05, 2004/03/08 dc395x: Target 05: Sync: 100ns Offset 15 (10.0 MB/s) Vendor: HP Model: C1533A Rev: A708 Type: Sequential-Access ANSI SCSI revision: 02 Attached scsi tape st0 at scsi3, channel 0, id 5, lun 0 st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 1048575 Attached scsi generic sg2 at scsi3, channel 0, id 5, lun 0, type 1 Vendor: IOMEGA Model: ZIP 100 Rev: D.13 Type: Direct-Access ANSI SCSI revision: 02 SCSI device sdc: 196608 512-byte hdwr sectors (101 MB) sdc: Write Protect is off sdc: Mode Sense: 25 00 00 08 sdc: cache data unavailable sdc: assuming drive cache: write through SCSI device sdc: 196608 512-byte hdwr sectors (101 MB) sdc: Write Protect is off sdc: Mode Sense: 25 00 00 08 sdc: cache data unavailable sdc: assuming drive cache: write through sdc: sdc4 Attached scsi removable disk sdc at scsi3, channel 0, id 6, lun 0 Attached scsi generic sg3 at scsi3, channel 0, id 6, lun 0, type 0 Termination turned on on the zip, at the tape end there's a passive terminator. The cable to the tape is pretty bad, I had to replace it in another computer, but the tape IS SLOW. And it works on dc390. Just wanted to make sure it's not a software bug? Thanks Guennadi --- Guennadi Liakhovetski - : 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