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Date:      Fri, 7 Jun 2013 16:10:53 +0930
From:      Ian West <ian@niw.com.au>
To:        freebsd-scsi@freebsd.org
Subject:   Trouble with SAS LTO tape drive and mfi
Message-ID:  <20130607064053.GA8814@aleph.niw.com.au>

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Hello.

I am having a strange issue with a HP Ultrium 3000 LTO drive connected to a LSI MegaRAID SAS 9280-24i4e
controller. It appears to write ok to tape, but on rewind it fails. If I eject the tape and reinsert it
reads ok. It appears that the rewind times out with the following kernel warnings

Jun  7 15:44:22 aleph kernel: mfi0: 4304 (423900863s/0x0002/info) - Inserted: PD 29(e0xff/s0)
Jun  7 15:44:22 aleph kernel: mfi0: 4305 (423900863s/0x0002/info) - Inserted: PD 29(e0xff/s0) Info: enclPd=ffff, scsiType=1, portMap=00, sasAddr=500110a001535d9c,0000000000000000
Jun  7 15:46:38 aleph kernel: mfi0: 4306 (423900999s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:46:51 aleph kernel: mfi0: 4307 (423901012s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:47:04 aleph kernel: mfi0: 4308 (423901025s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:47:17 aleph kernel: mfi0: 4309 (423901038s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:47:30 aleph kernel: mfi0: 4310 (423901051s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:47:43 aleph kernel: mfi0: COMMAND 0xffffff80005a32a8 TIMEOUT AFTER 39 SECONDS
Jun  7 15:47:43 aleph kernel: mfi0: 4311 (423901064s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:47:56 aleph kernel: mfi0: 4312 (423901077s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:48:09 aleph kernel: mfi0: 4313 (423901090s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:48:22 aleph kernel: mfi0: 4314 (423901103s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)
Jun  7 15:48:35 aleph kernel: mfi0: 4315 (423901116s/0x0002/WARN) - PD 29(e0xff/s0) Path 500110a001535d9c  reset (Type 03)

Eventually after a couple of minutes of the tape running back and forth I get an I/O error.

[root@aleph mnt]# mt -f /dev/nsa0 rewind
mt: /dev/nsa0: rewind: Input/output error

Any suggestions as to where to look would be most appreciated.





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