Date: Fri, 03 Feb 2006 12:27:00 +0100 From: =?ISO-8859-1?Q?=C5ge_R=F8bekk?= <age.robekk@ventelo.no> To: "Kenneth D. Merry" <ken@freebsd.org> Cc: freebsd-scsi@freebsd.org Subject: Re: Problems with Dell PV132T tape changer Message-ID: <43E33E04.1080007@ventelo.no> In-Reply-To: <20060202162133.GA90898@nargothrond.kdm.org> References: <43E2189B.1090207@ventelo.no> <20060202162133.GA90898@nargothrond.kdm.org>
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Kenneth D. Merry wrote: > On Thu, Feb 02, 2006 at 15:35:07 +0100, ?ge R?bekk wrote: >> This changer has two separate changer devices, /dev/ch0 and /dev/ch1. >> When moving a tape from e.g. slot 0 to drive 0 on /dev/ch0, everything >> works as it is supposed to. However, trying the same operation on >> /dev/ch1 fails as follows: >> >> # chio -f /dev/ch0 move slot 0 drive 0 >> chio: /dev/ch0: CHIOMOVE: Input/output error > > This doesn't quite make sense. You're trying the above command on ch0, but > you said the problem is with ch1...and it looks like the command failed on > ch0 as well. Oops, a slight mixup. /dev/ch1 is the erroneous device, /dev/ch0 apparently has no problems. The cutted & pasted error above was due to moving from a slot to an already occupied drive on the wrong device. >> dmesg: >> >> [...] >> (ch1:ahc0:0:5:1): MOVE MEDIUM. CDB: a5 20 0 1 20 6 2 0 0 0 0 0 >> (ch1:ahc0:0:5:1): CAM Status: SCSI Status Error >> (ch1:ahc0:0:5:1): SCSI Status: Check Condition >> (ch1:ahc0:0:5:1): ILLEGAL REQUEST asc:3b,a0 >> (ch1:ahc0:0:5:1): Vendor Specific ASCQ >> (ch1:ahc0:0:5:1): Unretryable error > > In this case, ch1 didn't like the move medium for some reason, but they've > given us a vendor specific error. The other errors in that general > vicinity in the spec deal with not being able to do movements requested > from a changer. Is there any easy way to obtain the documentation that states what these ASCQ codes are? This might be as easy as a stuck picker or perhaps faulty firmware. >> # chio -f /dev/ch1 status >> picker 0: >> slot 0: <ACCESS,FULL> >> slot 1: <ACCESS,FULL> >> slot 2: <ACCESS,FULL> >> slot 3: <ACCESS,FULL> >> slot 4: <ACCESS,FULL> >> slot 5: <ACCESS,FULL> >> slot 6: <ACCESS,FULL> >> slot 7: <ACCESS,FULL> >> slot 8: <ACCESS,FULL> >> slot 9: <ACCESS,FULL> >> slot 10: <ACCESS,FULL> >> slot 11: <ACCESS,FULL> >> slot 12: <ACCESS,FULL> >> slot 13: <ACCESS,FULL> >> portal 0: <INEAB,EXENAB,ACCESS,IMPEXP> >> drive 0: <ACCESS> > > From the specs, it looks like this changer is supposed to have up to 24 slots > when used with LTO drives. How many slots does your unit have? How many > slots are there on ch0? ch0 has 8 slots: # chio -f /dev/ch0 status picker 0: slot 0: <ACCESS> slot 1: <ACCESS,FULL> slot 2: <ACCESS,FULL> slot 3: <ACCESS> slot 4: <ACCESS,FULL> slot 5: <ACCESS> slot 6: <ACCESS> slot 7: <ACCESS,FULL> portal 0: <INEAB,EXENAB,ACCESS,IMPEXP> drive 0: <FULL> > Are all slots available from both changer devices? No, for some reason they chose to separate the device into two different pickers and drives. 8 of the cartridges are in the back of the unit (ch0), the rest is mounted in front (ch1). > Ken -- Åge Røbekk, Ventelo Comnet AS
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