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Re: DLT4000 media errors. Bad drive?

To: Dan Brosemer <odin@svartalfheim.net>
Subject: Re: DLT4000 media errors. Bad drive?
From: Marco Peereboom <slash@peereboom.us>
Date: Thu, 5 Feb 2004 20:25:07 -0600
Cc: misc@openbsd.org
References: <20040206015706.GT23477@cleannorth.org>

Weird. Should work normally although some tapes are sometimes moody if  
they have been used in other systems although I have never seen this on  
OpenBSD. Did you try a simple tar command? something like:
tar cvf /dev/st0 /bin
Oh, and try this twice in a row; I have seen that fix problems before.

What is weird is the error code. 0x80 0x00 is vendor specific and I  
don't have a DLT4K manual handy to look it up. It is likely an internal  
fault. Do you have another tape to try?
And better, another drive?

On Feb 5, 2004, at 7:57 PM, Dan Brosemer wrote:

> I've used various tape technologies with OpenBSD for a while (Exabyte,  
> DDS,
> etc.) but never DLT, so I'm hoping someone with better DLT kung-fu can  
> help
> me.
>
> I recently bought a second-hand DLT4000, and I'm not sure if the drive  
> is
> bad or if I'm not doing something that needs to be done for DLT and  
> not for
> DDS or 8mm tapes.
>
> I cannot write to brand new tapes.  I have run a cleaning tape through  
> even
> though the drive didn't ask for it.
>
> If I put a fresh tape in, the "tape in use" light blinks for a short  
> while,
> then the 20GB and Compress lights come on and the "tape in use" light  
> blinks
> with different frequency.  After two minutes, it goes solid and stays  
> that
> way for upwards of 30min.
>
> At this point, I can run mt commands and get reasonable results  
> (below).
>
> But I can't write data.  (Input/output error from dd)  The 20GB and
> Compression lights go off when I try, too.
>
> So, am I just missing something DLTish, or is my drive broken?
>
> Thanks in advance for any insight.
>
> dmesg, mt, dd, and kernel info:
>
> ----  dmesg  ----
> OpenBSD 3.4-stable (GENERIC) #0: Tue Nov  4 13:07:28 EST 2003
>     odin@akbar.cleannorth.org:/usr/src/sys/arch/i386/compile/GENERIC
> cpu0: Intel Pentium II Xeon ("GenuineIntel" 686-class, 1024KB L2  
> cache) 450 MHz
> cpu0:  
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36 
> ,MMX,FXSR
> real mem  = 1073311744 (1048156K)
> avail mem = 990146560 (966940K)
> using 4278 buffers containing 53768192 bytes (52508K) of memory
> mainbus0 (root)
> bios0 at mainbus0: AT/286+(00) BIOS, date 12/31/99, BIOS32 rev. 0 @  
> 0xf0000
> pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x2000
> pcibios0: PCI BIOS has 8 Interrupt Routing table entries
> pcibios0: PCI Interrupt Router at 000:15:0 ("Intel 82371AB PIIX4 ISA"  
> rev 0x00)
> pcibios0: PCI bus #0 is the last bus
> bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4000 0xe8000/0x6000  
> 0xee000/0x2000!
> pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
> fxp0 at pci0 dev 1 function 0 "Intel 82557" rev 0x05: irq 5, address  
> 00:08:c7:07:bf:00
> inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 0
> "Compaq Netelligent ASMC" rev 0x00 at pci0 dev 12 function 0 not  
> configured
> siop0 at pci0 dev 13 function 0 "Symbios Logic 53c875" rev 0x14 using  
> on-board RAM irq 9
> scsibus0 at siop0: 16 targets
> siop0: target 6 now using 8 bit 10.0 MHz 15 REQ/ACK offset xfers
> st0 at scsibus0 targ 6 lun 0: <Quantum, DLT4000 CPQ DRV, D473> SCSI2  
> 1/sequential removable
> st0: drive empty
> siop1 at pci0 dev 13 function 1 "Symbios Logic 53c875" rev 0x14 using  
> on-board RAM irq 10
> scsibus1 at siop1: 16 targets
> vga1 at pci0 dev 14 function 0 "ATI Mach64 GV" rev 0x3a
> wsdisplay0 at vga1: console (80x25, vt100 emulation)
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
> pcib0 at pci0 dev 15 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
> pciide0 at pci0 dev 15 function 1 "Intel 82371AB IDE" rev 0x01: DMA,  
> channel 0 wired to compatibility, channel 1 wired to compatibility
> atapiscsi0 at pciide0 channel 0 drive 0
> scsibus2 at atapiscsi0: 2 targets
> cd0 at scsibus2 targ 0 lun 0: <COMPAQ, CD-ROM CR-589, GC4K> SCSI0  
> 5/cdrom removable
> cd0(pciide0:0:0): using PIO mode 4, DMA mode 2
> pciide0: channel 1 ignored (disabled)
> uhci0 at pci0 dev 15 function 2 "Intel 82371AB USB" rev  
> 0x01pci_intr_map: no mapping for pin D
> : couldn't map interrupt
> "Intel 82371AB Power Mgmt" rev 0x02 at pci0 dev 15 function 3 not  
> configured
> pchb0 at pci0 dev 16 function 0 "Intel 82451NX Mem & IO" rev 0x03
> pchb1 at pci0 dev 18 function 0 "Intel 82454NX PXB" rev 0x02
> pchb2 at pci0 dev 19 function 0 "Intel 82454NX PXB" rev 0x02
> pci1 at pchb2 bus 4
> ppb0 at pci1 dev 5 function 0 "IBM 82351 PCI-PCI" rev 0x01
> pci2 at ppb0 bus 5
> cac0 at pci2 dev 0 function 0 "Compaq SMART2P RAID" rev 0x02: irq 11  
> Compaq SMART-2/P
> scsibus3 at cac0: 2 targets
> sd0 at scsibus3 targ 0 lun 0: <Compaq, RAID1 volume #, > SCSI2  
> 0/direct fixed
> sd0: 17363MB, 4358 cyl, 255 head, 32 sec, 512 bytes/sec, 35561280 sec  
> total
> sd1 at scsibus3 targ 1 lun 0: <Compaq, RAID0 volume #, > SCSI2  
> 0/direct fixed
> sd1: 17351MB, 4355 cyl, 255 head, 32 sec, 512 bytes/sec, 35536800 sec  
> total
>
> isa0 at pcib0
> isadma0 at isa0
> pckbc0 at isa0 port 0x60/5
> pckbd0 at pckbc0 (kbd slot)
> pckbc0: using irq 1 for kbd slot
> wskbd0 at pckbd0: console keyboard, using wsdisplay0
> pcppi0 at isa0 port 0x61
> midi0 at pcppi0: <PC speaker>
> sysbeep0 at pcppi0
> npx0 at isa0 port 0xf0/16: using exception 16
> pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
> biomask 4e40 netmask 4e60 ttymask 4e62
> pctr: 686-class user-level performance counters enabled
> mtrr: Pentium Pro MTRR support
> dkcsum: sd0 matched BIOS disk 80
> dkcsum: sd1 matched BIOS disk 81
> root on sd0a
> rootdev=0x400 rrootdev=0xd00 rawdev=0xd02
>
> --- mt status ---
>
> mace# mt -f /dev/nrst0 status
> SCSI tape drive, residual=0
> ds=3<Mounted>
> er=0
> blocksize: 0 (0, 0, 0, 0)
> density: 26 (0, 0, 0, 0)
>
> --- dd ---
>
> mace# dd if=/dev/zero of=/dev/nrst0 count=4
> dd: /dev/nrst0: Input/output error
> 1+0 records in
> 0+0 records out
> 0 bytes transferred in 0.030 secs (0 bytes/sec)
>
> --- this from the kernel when I do the dd ---
>
> st0(siop0:6:0): Check Condition on opcode 0xa
>     SENSE KEY: Media Error
>    INFO FIELD: 512
>      ASC/ASCQ: ASC 0x80 ASCQ 0x00
> st0(siop0:6:0): Check Condition on opcode 0x10
>     SENSE KEY: Media Error
>    INFO FIELD: 1
>      ASC/ASCQ: ASC 0x80 ASCQ 0x00
>
> -- 
> "Burnished gallows set with red
>  Caress the fevered, empty mind
>  Of man who hangs bloodied and blind
>  To reach for wisdom, not for bread."  -- Deoridhe Grimsdaughter

Follow-Ups:
- Re: DLT4000 media errors. Bad drive?
  - From: Dan Brosemer <odin@svartalfheim.net>

References:
- DLT4000 media errors. Bad drive?
  - From: Dan Brosemer <odin@svartalfheim.net>

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