Date: Tue, 07 Aug 2001 14:47:08 +1000 From: Robert Moss <rmoss@bigpond.net.au> To: freebsd-questions@freebsd.org Subject: Problems with Sony DDS4 DAT Tape under FreeBSD 4.3 Message-ID: <5.0.2.1.0.20010807144211.00aa4b20@localhost>
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Hi There,
Have been having sporadic problems with a Sony DDS4 DAT tape under
FreeBSD 4.3-STABLE.
Have only ever done 3 or 4 successful backups, and the other 20 or so tests
have failed.
Using an Intel SR2 Motherboard (Dual P3/1ghz), with onboard Adaptec 7899
Controller.
The Tape unit is on ID 1
Tar comes back with the error
tar: can't write to /dev/sa0 : Input/output error
And the dmesg log is larger, it says
(sa0:ahc0:0:1:0): SCB 0x8 - timed out in Data-out phase, SEQADDR == 0x56
STACK == 0x67, 0x164, 0x0, 0x8e
SXFRCTL0 == 0x80
ahc0: Dumping Card State at SEQADDR 0x56
SCSISEQ = 0x12, SBLKCTL = 0x6, SSTAT0 0x0
SCB count = 20
Kernel NEXTQSCB = 14
Card NEXTQSCB = 14
QINFIFO entries:
Waiting Queue entries:
Disconnected Queue entries:
QOUTFIFO entries:
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
Pending list: 8
Kernel Free SCB list: 15 16 17 18 19 0 1 2 3 4 5 6 7 9 13 12 11 10
Untagged Q(1): 8
sg[0] - Addr 0x6f82000 : Length 4096
sg[1] - Addr 0xeba3000 : Length 4096
sg[2] - Addr 0x1cfc4000 : Length 2048
(sa0:ahc0:0:1:0): BDR message in message buffer
(sa0:ahc0:0:1:0): SCB 0x8 - timed out in Data-out phase, SEQADDR == 0x90
STACK == 0x8e, 0x67, 0x164, 0x0
SXFRCTL0 == 0x80
ahc0: Dumping Card State at SEQADDR 0x90
SCSISEQ = 0x12, SBLKCTL = 0x6, SSTAT0 0x0
SCB count = 20
Kernel NEXTQSCB = 14
Card NEXTQSCB = 14
QINFIFO entries:
Waiting Queue entries:
Disconnected Queue entries:
QOUTFIFO entries:
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31
Pending list: 8
Kernel Free SCB list: 15 16 17 18 19 0 1 2 3 4 5 6 7 9 13 12 11 10
Untagged Q(1): 8
sg[0] - Addr 0x6f82000 : Length 4096
sg[1] - Addr 0xeba3000 : Length 4096
sg[2] - Addr 0x1cfc4000 : Length 2048
(sa0:ahc0:0:1:0): no longer in timeout, status = 34b
ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
(sa0:ahc0:0:1:0): failed to write terminating filemark(s)
(sa0:ahc0:0:1:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM
command to clear this state.
I have gone into the SCSI Bios and changed negotiaton from Ultra/160 right
down to Ultra/40. I'm pretty stuck right now, and would appreciate any
suggestions.
Thanks,
Robert Moss.
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