scsi troubles

[Stas Khromoy]

Mike:

maybe i am blind and don't see
this info in your reply

do you use Adaptec 3960D scsi adapter ?


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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>