HP VS80 - StorageWorks DLT VS 80 Tape Drive User Manual page 31

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Silicon Graphics systems, IRIX
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contents of this section
determining the SCSI ID
configuring the device files
MTCAN and constants values
determining the SCSI id
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 or scsi HP entry to 128*512 (128-kilobyte blocks) or, better still, 64*512 (64-
kilobyte blocks).
1Open the kernel configuration file /var/sysgen/master.d/scsi, for IRIX 6.2 and
later, with a text editor.
2Find 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_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|
MTCAN_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|
MTCAN_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|
MTCAN_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|
MTCAN_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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_BSF|MTCAN_BSR|MTCAN_APPEND|MTCAN_SETMK|MTCAN_PART|
MTCAN_PREV|MTCAN_SYNC|MTCAN_SPEOD|MTCAN_CHKRDY|MTCAN_VAR|
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
and Constants Values".
3Recompile 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
These device file names can be interpreted as follows:
Device Name Function
c Compression
nr No rewind on close
v Device supports variable block sizes
ns Device does not byte-swap
s 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
MTCAN and constants values
The MTCAN values have the following functions:
MTCAN
Capability Enabled
value
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
PREV 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
40 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 or Recommended blocking factor in bytes for the upper limit of
read/write commands
512*512
http://www.hp.com/support/tape may have a later version
related topics
tps0d3cnrv tps0d3nrns
tps0d3cns tps0d3nrnsv
tps0d3cnsv tps0d3nrs
tps0d3cs tps0d3nrsv
tps0d3csv tps0d3nrv
tps0d3cv tps0d3ns
tps0d3nr tps0d3nsv
Installation.
verifying installation
glossary
tps0d3s
tps0d3sv
tps0d3v
tps0d3stat
© 2001, Hewlett-Packard Company
hp learning products
"MTCAN