Getting Started, Documentation, Tips & Tricks

Quantum LTO3 driver for IRIX

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: Select all

/* 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: Select all

[email protected]:~/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
[email protected]:~/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
[email protected]:~/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: Select all

/* 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: Select all

[email protected]:~[1]> mt -t /dev/rmt/tps6d6 stat
Controller: SCSI
Device: CERTANCE: ULTRIUM 3       17703106
Status: 0x20262
Drive type: DAT
Media : READY, writable, at BOT
[email protected]:~[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
[email protected]:~[3]
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I saw it on TV, it must be real!
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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
UX powered
The APD license cost $$$$.

regards
Joerg
I broke down and contacted SGI about APD for this drive. Their response follows:
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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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I saw it on TV, it must be real!

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I was always under the impression that Quantam made all the drives and the OEM's just rebadged/rehoused the mechanisms....???
:Onyx: Onyx Infinite reality, Quad R10k 195, 2gbram
:Octane2: Octane1.5 ;) R12k 400, 2gb, V6, 36gb + 18gb
:Indigo2IMP: Indigo2 R4400 250, 340mb, MaxImpact, 4mb Trams
:1600SW: 1600sw + Multilink x2
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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I saw it on TV, it must be real!

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Hello,

I use the HP 460 LTO2 tape drive and works perfect native on IRIX... without the APD driver package and license .... :)
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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I saw it on TV, it must be real!

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