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videobrat
Unread postPosted: Thu Jan 19, 2006 6:46 pm 
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Even though I'm under 6.5.28, the LTO3 isn't really rolled into the operating system. I hammered away at the /var/sysgen/master.d/scsi file, and rebuilt the kernel several times, but the drive hangs when I try to read it back. I've tried a couple of different setups, each time getting the same result.

This appeared to write out 380GB fine, but I wasn't able to get it to read back at all:
Code:
        /* Quantum LTO3 / Ultrium 3 */
         { DATTAPE, TPDAT, 8, 7, "CERTANCE", "ULTRIUM 3", 0, 0, {0},
           MTCAN_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|MTCAN_PREV|
             MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|MTCAN_SETSZ|
             MTCAN_SILI|MTCAN_AUDIO|MTCAN_SEEK|MTCAN_CHTYPEANY|MTCAN_COMPRESS,
           40, 5*60, 20*60, 20*60, 3*3600, 512, 512*512,
           tpsc_default_dens_count, tpsc_default_hwg_dens_names,
             tpsc_default_alias_dens_names,
           {0}, 0, 0, 0,
           0, (u_char *)0 },

Code:
tape@fortune8:~/SCRIPTS[6]> hinv | grep -i tape
  Tape drive: unit 6 on SCSI controller 2: DLT
  Tape drive: unit 6 on SCSI controller 3: DLT
  Tape drive: unit 6 on SCSI controller 6: DAT
  Tape drive: unit 6 on SCSI controller 7: DLT
tape@fortune8:~/SCRIPTS[7]> mt -t /dev/rmt/tps6d6 stat
        Controller: SCSI
        Device: CERTANCE: ULTRIUM 3       17703106
        Status: 0x20242
        Drive type: DAT
        Media : READY, writable, at BOT
tape@fortune8:~/SCRIPTS[8]>


unit hangs with a device error - required power cycle to wake up.

---

a little closer. This one ran better, but hung after reading back about a thousand frames (12GB):
Code:
          /* Quantum LTO3 / Ultrium 3 */
           {DATTAPE, TPDAT, 8, 7, "CERTANCE", "ULTRIUM 3", 0, 0, {0},
             MTCAN_BSF | MTCAN_BSR | MTCAN_APPEND | MTCAN_SETMK |
              MTCAN_PREV | MTCAN_SYNC | MTCAN_SPEOD | MTCAN_CHKRDY |
              MTCAN_VAR | MTCAN_SETSZ | MTCAN_SILI | MTCAN_SEEK |
              MTCAN_COMPRESS,
             40, 5*60, 10*60, 10*60, 3*3600, 512, 256*512,
             tpsc_default_dens_count, tpsc_default_hwg_dens_names,
             tpsc_default_alias_dens_names,
            {0}, 0, 0, 0,
            0, (u_char*) 0},


Code:
tape@fortune8:~[1]> mt -t /dev/rmt/tps6d6 stat
        Controller: SCSI
        Device: CERTANCE: ULTRIUM 3       17703106
        Status: 0x20262
        Drive type: DAT
        Media : READY, writable, at BOT
tape@fortune8:~[2]> hinv | grep -i tape
  Tape drive: unit 6 on SCSI controller 2: DLT
  Tape drive: unit 6 on SCSI controller 3: DLT
  Tape drive: unit 6 on SCSI controller 6: DAT
  Tape drive: unit 6 on SCSI controller 7: DLT
tape@fortune8:~[3]

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LoWeN
 Post subject:
Unread postPosted: Fri Jan 20, 2006 12:33 am 
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Joined: Thu Aug 28, 2003 10:45 am
Posts: 256
Location: Belgium
Hello,

You are loosing your time.
You must pay the APD licences for LTO.

Everything past the dlt is now used via a special daemon.

@+

LoWeN

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joerg
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Unread postPosted: Fri Jan 20, 2006 9:33 am 
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Posts: 2222
Location: In an origin rack - Germany
The APD license cost $$$$.

regards
Joerg

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videobrat
 Post subject:
Unread postPosted: Fri Jan 27, 2006 2:10 pm 
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Posts: 107
Location: Hollywood, CA
I broke down and contacted SGI about APD for this drive. Their response follows:
--------------------------------------------------------------
Hi,
I can confirm to you that there's no support for quantum LTO 3 drives.
We only support IBM and HP. W e don't forsee quantum support in the
plans at this time.
Let me know if you want me to contact our sales rep. that takes care of
the tapes drives to ask him to send you a quote on a supported TP.
--------------------------------------------------------------

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MattPayne
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Unread postPosted: Fri Jan 27, 2006 2:58 pm 
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Posts: 504
Location: sunny ol' england!
I was always under the impression that Quantam made all the drives and the OEM's just rebadged/rehoused the mechanisms....???

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videobrat
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Unread postPosted: Fri Jan 27, 2006 8:58 pm 
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The whole point of LTO is the idea that the hardware is "open". Anyone can manufacture it. DLT is Quantum, but LTO is produced by three different manufacturers (maybe Sony will produce these too since DTF has dead ended).

from the Quantum site:
As a result of the Certance acquisition, Quantum is the world’s largest volume supplier of both tape drives and tape automation. With the breadth of Quantum’s portfolio, we will be able to provide both channel and OEM partners with a single source of backup, recovery and archive solutions not available anywhere else.[/u]

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cor_sgi
 Post subject: HP 460 LTO2
Unread postPosted: Sun Apr 16, 2006 2:09 pm 
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Posts: 22
Hello,

I use the HP 460 LTO2 tape drive and works perfect native on IRIX... without the APD driver package and license .... :)
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videobrat
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Unread postPosted: Tue Apr 18, 2006 6:58 am 
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Posts: 107
Location: Hollywood, CA
My vendor exchanged my drive for the HP, works OK, but it's slow - see my other post at http://forums.nekochan.net/viewtopic.php?t=9663

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