scsi troubles

[Mike Galvez]

On Thu, Apr 20, 2006 at 04:22:11PM -0400, Stas Khromoy wrote:
> Mike:
> 
> maybe i am blind and don't see
> this info in your reply
> 
> do you use Adaptec 3960D scsi adapter ?

Stas,

You're not blind, I just forgot to add the info, The adapter was also
purchased through Dell and is  <Adaptec 3960D Ultra160 SCSI adapter>

hth

	-Mike
> 
> 
> Mike Galvez wrote:
> 
> >On Thu, Apr 20, 2006 at 12:35:59PM -0400, Stas Khromoy wrote:
> >>i am pretty  sure backups don't work when error comes up
> >> and the tape drive locks up at that time too, requiring a cold reset
> >>
> >>is any one else using this tape model (powervault 114t LTO2 tape drive)?
> >
> >Stas,
> >
> >I am using a PV-124T LTO2. I am having similar issues with the changer
> >locking up when moving tapes. I didn't see the earlier part of this thread,
> >so I don't know what you are using for backup software.
> >
> >I'm using Amanda 2.4.5p1 with FreeBSD 6.1-RC1 on Dell PE-850 and having a 
> >few issues getting it to run smoothly. I was beginning to wonder if I got 
> >a bad
> >changer. 
> >
> >I am able to make backups and restore from them, but every so often I get 
> >a "Dump Card State" message and the changer locks up and has to be 
> >power-cycled.
> >
> >ch0 at ahc0 bus 0 target 6 lun 1
> >ch0: <DELL PV-124T 0026> Removable Changer SCSI-2 device 
> >ch0: 160.000MB/s transfers (80.000MHz, offset 127, 16bit)
> >ch0: 8 slots, 1 drive, 1 picker, 0 portals
> >(sa0:ahc0:0:6:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM 
> >command
> >to clear this state.
> >(sa0:ahc0:0:6:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM 
> >command
> >to clear this state.
> >ahc0: Recovery Initiated
> >>>>>>>>>>>>>>>>>>>Dump Card State Begins <<<<<<<<<<<<<<<<<
> >ahc0: Dumping Card State while idle, at SEQADDR 0x8
> >Card was paused
> >ACCUM = 0x4, SINDEX = 0x67, DINDEX = 0x27, ARG_2 = 0x4
> >HCNT = 0x0 SCBPTR = 0x0
> >SCSIPHASE[0x0] SCSISIGI[0x0] ERROR[0x0] SCSIBUSL[0x0] 
> >LASTPHASE[0x1]:(P_BUSFREE) SCSISEQ[0x12]:(ENAUTOATNP|ENRSELI) 
> >SBLKCTL[0xa]:(SELWIDE|SELBUSB) SCSIRATE[0x0] SEQCTL[0x10]:(FASTMODE) 
> >SEQ_FLAGS[0xc0]:(NO_CDB_SENT|NOT_IDENTIFIED) SSTAT0[0x0] 
> >----- snip ----
> >
> >This probably isn't helpful as I don't have an answer for why this 
> >happening.
> >I'm still looking.
> >
> >	-Mike
> >>
> >>-----
> >>>[snip]
> >>>
> >>>Do you know for sure if the backups are failing?  It's possible the dump
> >>>card states are harmless.  I have some systems that do a dump card state
> >>>on boot but that have never exhibited an actual problem.
> >>>
> >>>Another suggestion is to check if you have the latest firmware for both
> >>>the tape drive and the controller.
> >>>
> >>>Still more people will probably say that there is bad voodoo between
> >>>whoever your controller vendor is and whoever your drive vendor is.
> >>>
> >>>Mike
> >>>
> >>_______________________________________________
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> >
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-- 
Michael Galvez             http://www.people.virginia.edu/~mrg8n
Information Technology Specialist         University of Virginia
USENIX Member

Death is only a state of mind. 
Only it doesn't leave you much time to think about anything else.