| Author |
Message |
Eric Edwards
Guest
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 Posted:
Fri Nov 12, 2004 11:23 pm Post subject:
Can't read/write or control DLT2700 |
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I have a Netra T1 trying to use a DEC DLT2700 tape changer.
The only thing I am able to do reliable is get status.
Reads and writes result in hangs if the tape is loaded.
mtx can only stat. If I attempt to load a tape I get the following:
| Quote: | mtx next
mtx: Request Sense: Long Report=yes |
mtx: Request Sense: Valid Residual=no
mtx: Request Sense: Error Code=70 (Current)
mtx: Request Sense: Sense Key=Illegal Request
mtx: Request Sense: FileMark=no
mtx: Request Sense: EOM=no
mtx: Request Sense: ILI=no
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 02
mtx: Request Sense: Field in Error = 07
mtx: Request Sense: BPV=yes
mtx: Request Sense: Error in CDB=yes
mtx: Request Sense: SKSV=yes
mtx: Request Sense: Field Pointer = 00 00
MOVE MEDIUM from Element Address 256 to 16 Failed
I don't see anything that looks like a scsi error /var/adm/messages.
Nov 12 14:26:37 mind-fs1 scsi: [ID 193665 kern.info] sgen70 at glm1: target 6 lun 1
Nov 12 14:26:37 mind-fs1 genunix: [ID 936769 kern.info] sgen70 is /pci@1f,0/pci@1/pci@1/scsi@f/s
gen@6,1
Nov 12 14:59:22 mind-fs1 scsi: [ID 365881 kern.info] /pci@1f,0/pci@1/pci@1/scsi@f/st@6,0 (st13):
Nov 12 14:59:22 mind-fs1 <Vendor 'DEC ' Product 'DLT2700 '>
Nov 12 14:59:22 mind-fs1 scsi: [ID 193665 kern.info] st13 at glm1: target 6 lun 0
Nov 12 14:59:22 mind-fs1 genunix: [ID 936769 kern.info] st13 is /pci@1f,0/pci@1/pci@1/scsi@f/st@
6,0
Nov 12 15:12:09 mind-fs1 scsi: [ID 243001 kern.info] /pci@1f,0/pci@1/pci@1/scsi@f/st@6,0 (st13):
Nov 12 15:12:09 mind-fs1 Variable record length I/O
I'm not sure what the sgen70 is about. I did play around with high around with high numbered sgens for a while, but I never went higher than 37.
Cabling seems solid. I've taken it all apart and put it back together. The drive is connected to Sun labled Symbios dual channel card.
Nov 12 14:22:04 mind-fs1 Rev. 7 Symbios 53c876 found.
It's a wide card and the tape changer is narrow so there is a wide to narrow
adapter at the input to the tape driver. The other port is terminated. There
are no other devices on the bus.
mtx version 1.2.17rel
SunOS Release 5.9 Version Generic_112233-12 64-bit
Any ideas? It doesn't seem like it should be this hard.
--
Photos and travelogues from Africa and Southeast Asia: http://www.exile.org |
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Scott Howard
Guest
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| Posted:
Sat Nov 13, 2004 9:33 am Post subject:
Re: Can't read/write or control DLT2700 |
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In comp.sys.sun.hardware Eric Edwards <ese002@news9.exile.org> wrote:
| Quote: | I have a Netra T1 trying to use a DEC DLT2700 tape changer.
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 02
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ASC 53/ASCQ 02 is :
53/02 DT WROM BK MEDIUM REMOVAL PREVENTED
Which almost certainly means your library is toast.
Scott |
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Eric Edwards
Guest
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| Posted:
Sat Nov 13, 2004 10:33 am Post subject:
Re: Can't read/write or control DLT2700 |
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On Sat, 13 Nov 2004 08:48:18 +0100, Rob Turk <_wipe_me_r.turk@chello.nl> wrote:
| Quote: | "Scott Howard" <scott@hunterlink.net.au> wrote in message
news:1100320429.285937@docbert...
In comp.sys.sun.hardware Eric Edwards <ese002@news9.exile.org> wrote:
I have a Netra T1 trying to use a DEC DLT2700 tape changer.
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 02
ASC 53/ASCQ 02 is :
53/02 DT WROM BK MEDIUM REMOVAL PREVENTED
Which almost certainly means your library is toast.
Not so. Media removal prevented means that either the library door is locked
(physically), but more commonly the library has received a SCSI command to
lock the door or to keep the media in the drive. This is often caused when
there's a backup application running already which has claimed the drive
and/or changer.
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No other running applications. However, it is probably worth noting
that loading and unloading tapes from the front panel works fine.
--
Photos and travelogues from Africa and Southeast Asia: http://www.exile.org |
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Rob Turk
Guest
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| Posted:
Sat Nov 13, 2004 12:48 pm Post subject:
Re: Can't read/write or control DLT2700 |
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"Scott Howard" <scott@hunterlink.net.au> wrote in message
news:1100320429.285937@docbert...
| Quote: | In comp.sys.sun.hardware Eric Edwards <ese002@news9.exile.org> wrote:
I have a Netra T1 trying to use a DEC DLT2700 tape changer.
mtx: Request Sense: Additional Sense Code = 53
mtx: Request Sense: Additional Sense Qualifier = 02
ASC 53/ASCQ 02 is :
53/02 DT WROM BK MEDIUM REMOVAL PREVENTED
Which almost certainly means your library is toast.
|
Not so. Media removal prevented means that either the library door is locked
(physically), but more commonly the library has received a SCSI command to
lock the door or to keep the media in the drive. This is often caused when
there's a backup application running already which has claimed the drive
and/or changer.
As far as I can recall, DLT2700's use SCSI LUN addressing. LUN 0 is the
drive, LUN 1 is the robot. Is mtx capable of handling that?
Rob |
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Rob Turk
Guest
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| Posted:
Sat Nov 13, 2004 4:04 pm Post subject:
Re: Can't read/write or control DLT2700 |
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"Eric Edwards" <ese002@news9.exile.org> wrote in message
news:slrncpbonf.sg9.ese002@spica.exile.org...
| Quote: |
No other running applications. However, it is probably worth noting
that loading and unloading tapes from the front panel works fine.
--
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Before running mtx, can you eject the tape from the drive with 'mt offline'?
Rob |
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Emmanuel Florac
Guest
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| Posted:
Sat Nov 13, 2004 7:55 pm Post subject:
Re: Can't read/write or control DLT2700 |
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Le Sat, 13 Nov 2004 12:04:27 +0100, Rob Turk a écrit :
| Quote: |
Before running mtx, can you eject the tape from the drive with 'mt offline'?
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I agree, "mt offline" first is mandatory with DLT changers.
--
Dix grammes d'abstraction valent des tonnes de bricolage.
Loi de Booker. |
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Eric Edwards
Guest
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| Posted:
Sat Nov 13, 2004 9:58 pm Post subject:
Re: Can't read/write or control DLT2700 |
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On Sat, 13 Nov 2004 15:55:35 +0100, Emmanuel Florac <eflorac@imaginet.fr> wrote:
| Quote: | Le Sat, 13 Nov 2004 12:04:27 +0100, Rob Turk a écrit :
Before running mtx, can you eject the tape from the drive with 'mt offline'?
I agree, "mt offline" first is mandatory with DLT changers.
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I think mt offline hangs when there is a tape loaded. I will have to
double check on Monday. The mtx next command output at the start of
this thread is with no tape loaded after a cold boot. Would mt offline
be meaningful in that case?
--
Photos and travelogues from Africa and Southeast Asia: http://www.exile.org |
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Emmanuel Florac
Guest
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| Posted:
Sun Nov 14, 2004 10:24 pm Post subject:
Re: Can't read/write or control DLT2700 |
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Le Sat, 13 Nov 2004 21:58:05 +0000, Eric Edwards a écrit :
| Quote: |
I think mt offline hangs when there is a tape loaded.
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Sounds bad.... in the DLT drive mt offline get actually the tape back into
the cartridge.
| Quote: | Would mt offline
be meaningful in that case?
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No, you should be able to load a tape in an empty drive with mtx as a
start.
--
Mais monsieur, voudriez-vous que je me l'écorchasse?
Barbey d'Aurevilly. |
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Eric Edwards
Guest
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| Posted:
Tue Nov 16, 2004 3:46 am Post subject:
Re: Can't read/write or control DLT2700 |
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On Sun, 14 Nov 2004 18:24:17 +0100, Emmanuel Florac <eflorac@imaginet.fr> wrote:
| Quote: | Le Sat, 13 Nov 2004 21:58:05 +0000, Eric Edwards a écrit :
I think mt offline hangs when there is a tape loaded.
Sounds bad.... in the DLT drive mt offline get actually the tape back into
the cartridge.
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I confirmed this behavior today. mt offline hangs if there is a tape
loaded. Works fine if there is no tape loaded. That is, it fails with
an appropriate error message. About the only operation that "works" is
mtx load after a tape is already loaded.
I have also noticed that the "magazine failure" light comes on
occasionally. It is an uncommon condition but it happens often enough.
That, combined with previously mentioned problems has forced me to
conclude that this unit is not viable.
--
Photos and travelogues from Africa and Southeast Asia: http://www.exile.org |
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RPR
Guest
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| Posted:
Wed Nov 17, 2004 1:56 am Post subject:
Re: Can't read/write or control DLT2700 |
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That doesn't sound too good. Seems like the loader has a problem and as
a result the drive fails the unload.
I can send a DLT2xxx manual if you want it.
Ralf-Peter |
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