Before you configure your system to support your new HP Surestore Ultrium drive,
you need to determine what SCSI ID to use. The SCSI ID must be unique for each
device attached to the SCSI bus. To list the existing devices, use the following
command:

% hinv -v | grep SCSI

This will produce output similar to the following:

Integral SCSI controller 0: Version WD33C93B, revision D
Disk drive: unit 1 in SCSI controller 0

In this, “unit X” indicates the SCSI ID. Review the list of existing SCSI IDs and
choose an available ID to assign to your new tape drive.

configuring the device files

To install the HP Surestore drive on a Silicon Graphics system running IRIX, you will
need to modify the kernel configuration file.

If you want

tar

to default to short block transfers, change the

512*512

in your

tpsc

scsi

HP entry to

128*512

(128-kilobyte blocks) or, better still,

64*512

(64-

kilobyte blocks).

Open the kernel configuration file

/var/sysgen/master.d/scsi

, for IRIX 6.2 and

later, with a text editor.

Find the following entry in the kernel configuration file and copy it to a new location in
the file where you can edit it as appropriate for your tape drive:

For IRIX 6.2:

Ultrium tape drives

{DATTAPE, TPDAT,2,7,"HP","Ultrium",0,0,{0},

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CMTYPEANY|MTCAN_COMPRESS,

/*minimum delay to I/O is 4 minutes, because when a retry is

*performed, the drive retries a number of times, and then

*rewinds to BOT, repositions, and tries again.*/

40, 4*60, 20*60, 5*60, 512, 64*512, 0, (u_char*)0 },

DAT tape drives and autoloaders

{DATTAPE,TPDAT,2,6,"HP","C----A",0,0,{0},

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY|MTCAN_COMPRESS,

/*minimum delay to I/O is 4 minutes, because when a retry is

*performed, the drive retries a number of times, and then

*rewinds to BOT, repositions, and tries again.*/

40, 4*60, 20*60, 5*60,512, 64*512, 0, (u_char*)0 },

Note: Change

"C----A"

in the first line to the appropriate value for your device. DAT24

drives =

"C1537A"

; DAT40 drives=

"C5683A"

; DAT24x6 autoloaders=

"C1557A"

;

DAT40x6 autoloaders=

"C5713A"

DLTvs tape drives

{DECDLT, TPDLT,8,4,"BNCHMARK","DLT1",0,0,{0},

MTCAN_BSF|MTCAN_BSR|MTCAN_APPEND|

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CMTYPEANY|MTCAN_COMPRESS,

/*minimum delay to I/O is 4 minutes, because when a retry is

*performed, the drive retries a number of times, and then

*rewinds to BOT, repositions, and tries again.*/

40, 4*60, 20*60, 5*60, 512, 64*512, 0, (u_char*)0 },

For IRIX 6.4/6.5:

Ultrium tape drives

{ DATTAPE, TPDAT, 2, 7, "HP", "Ultrium", 0, 0, {0},

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY,

/* minimum delay on i/o is 4 minutes, because when a retry is

* performed, the drive retries a number of times, and then

* rewinds to BOT, repositions, and tries again. */

40, 4*60, 4*60, 5*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 },

DAT tape drives and autoloaders

{DATTAPE,TPDAT,2,6,"HP","C----A",0,0,{0},

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY,

/* minimum delay on i/o is 4 minutes, because when a retry is

* performed, the drive retries a number of times, and then

* rewinds to BOT, repositions, and tries again. */

40, 4*60, 4*60, 5*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 },

Note: Change

"C----A"

in the first line to the appropriate value for your device. DAT24

drives =

"C1537A"

; DAT40 drives=

"C5683A"

; DAT24x6 autoloaders=

"C1557A"

;

DAT40x6 autoloaders=

"C5713A"

DLTvs tape drives

{DECDLT, TPDLT,8,4,"BNCHMARK","DLT1",0,0,{0},

MTCAN_SETSZ|MTCAN_SILI|MTCAN_SEEK|MTCAN_CHTYPEANY,

/* minimum delay on i/o is 4 minutes, because when a retry is

* performed, the drive retries a number of times, and then

* rewinds to BOT, repositions, and tries again. */

40, 4*60, 4*60, 5*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 },

For an explanation of the functions of the

MTCAN

values and constants, see "

MTCAN

and Constants Values

Recompile the kernel by running

autoconfig

and then reboot the system. When you

reboot, the device files for the Ultrium drive will be created automatically.

The following device files will be created in

/dev/rmt

tps0d3

tps0d3c

tps0d3cnr

tps0d3cnrns

tps0d3cnrnsv

tps0d3cnrs

tps0d3cnrsv

tps0d3cnrv

tps0d3cns

tps0d3cnsv

tps0d3cs

tps0d3csv

tps0d3cv

tps0d3nr

tps0d3nrns

tps0d3nrnsv

tps0d3nrs

tps0d3nrsv

tps0d3nrv

tps0d3ns

tps0d3nsv

tps0d3s

tps0d3sv

tps0d3v

tps0d3stat

These device file names can be interpreted as follows:

Device Name Function

Compression

No rewind on close

Device supports variable block sizes

Device does not byte-swap

Device does byte-swap

stat

Allows the device to be used when one of the other device
files specifying the same physical device is already opened

For example, the device file

tps0d3

indicates a device on controller card 0 at SCSI ID 3,

and the device file

tps0d3nrv

indicates a device on controller card 0 at SCSI ID 3 that

does not rewind on close and supports variable block sizes.

Once the device files have been created, you should confirm that your new tape drive is
working properly. See

Verifying Installation

MTCAN and constants values

The

MTCAN

values have the following functions:

MTCAN
value

Capability Enabled

APPEND

Append to existing tape data

BSF

Backspace file

BSR

Backspace record

CHKRDY

Determine if a tape cartridge is present

CHTYPEANY Change density and/or fixed to variable at points other than

beginning of tape

COMPRESS Compression

PART

Multiple partitions

Prevent media removal

SEEK

Seek to a particular block

SETMK

Setmarks

SETSZ

Fixed block size can be set

SILI

Suppress illegal length indicators

SPEOD

Space to EOD (end of data)

SYNC

Synchronous mode SCSI

VAR

Variable block sizes

The constants have the following functions:

Constant

Description

Transfer time-out in "inverse ticks"

4*60

Minimum time-out in seconds for any command

4*60

Space command time-out in seconds

5*60

Time-out in seconds for long operations (such as rewinds)

512

Default block size in bytes for fixed block size mode

64*512

512*512

Recommended blocking factor in bytes for the upper limit of
read/write commands

file:///C|/Documents%20and%20Settings/topher.COL-SPRINGS/Desktop/dltvs80%20manual/document/common/unix/reseller/eng/c_silcon.htm [11/29/2001 8:34:29 AM]

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