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Patch 2442 : 6.2 Tape driver rollup [TDR4.1] : [IRIX 6.2]
INDEX
RELATIONS
RELEASE NOTES
1. Patch SG0002442 Release Note
This release note describes patch SG0002442 to IRIX 6.2.
This patch replaces patch SG0002074, SG0001607, SG0001284.
1.1 Supported Hardware Platforms
This patch contains bug fixes for all hardware platforms
supported by IRIX 6.2.
1.2 Supported Software Platforms
This patch contains bug fixes for the IRIX 6.2 tape driver
(tpsc). The software cannot be installed on other
configurations.
This patch requires patch SG0002172 (or its successor) to be
installed
This patch replaces patches SG0002074, SG0001607, SG0001284.
1.3 Bugs Fixed by Patch SG0002442
This patch contains fixes for the following bugs in IRIX
6.2. Bug numbers from Silicon Graphics bug tracking system
are included for reference.
o 526083 Open on stat device breaks I/Os to "regular"
one.
o 528263 Recommended block size for magstar MP is wrong.
1.4 Bugs Fixed in Patches Replaced by Patch SG0002442
o 313334 Include files sys/mtio.h and sys/param.h are now
made FORTRAN safe.
o 354033 tpsc didn't correctly handle detection of LEOT
(early-warning). This has been fixed for all DLT
drives, STK 9490 (Timberline), STK SD3 (Redwood), IBM
3590 (Magstar) and Exabyte 8mm devices.
For those applications wanting to support ANSI labels
(see 'man mtio') a new definition has been added to the
status word (mt_dposn field of the mtset struct)
returned by a MTIOCGET ioctl() call, to allow those
applications to differentiate between LEOT and PEOT.
See 'man mtio'.
o 355446 Block position number reported by the 'mt'
command for STK 9490 (Timberline), STK SD3 (Redwood)
was incorrect.
o 365072 On some devices, if the tape was positioned at
EOD, a read operation was not returning error code
ENOSPC.
o 365300 For variable block devices, the value of
recommended blocksize reported in the mtblkinfo
structure returned by the MTIOCGETBLKINFO ioctl(), was
not consistent.
o This patch has support for all OEM DLT drives (DLT2x00,
DLT4x00 and DLT7000). Additionally, support is added
to allow a DLT7000 to operate in native or DLT4000
density. The device nodes used to select the densities
are
- tps?d?xxx.7000 - DLT7000 native, no compression
- tps?d?xxx.7000c - DLT7000 native, compression
- tps?d?xxx.4000 - DLT4000 native, no compression
- tps?d?xxx.4000c - DLT4000 native, compression
- tps?d?xxx = tps?d?xxx.7000
- tps?d?xxxc = tps?d?xxx.7000c
xxx = one of 's nrs ns nrns nr sv nrsv nsv v nrnsv nrv'
o 373904 "nr" device would rewind if not used for more
than 5 minutes.
o 395620 This patch fix the problem of var writes failing
while application in particular mediad holds stat open
active on the tape device. See also bug 468004 - a
duplicate.
o 456309 Added an ioctl (MTILIMODE) which
enables/disables suppression of ILI on overlength
conditions.
o 467316 This corrected the typo which has been
preventing the driver from reading the tape through a
fixed sizes device if a size of the fixed tape device
block was set to a different value than the size of the
record on tape.
o 467719 This fixed the problem with ODD sized WIDE
WRITES ON TAPE. Since it is impossible to send odd
number of bytes to a wide device, HBA driver is forced
to send one byte, to make it even. As a result of this
special case handling in HBA driver, resid count in the
IO request block was set to -1, even though in reality
the device received exectly as much as it asked for.
This is passed to an upper driver (tpsc). The new code
checks after each IO block returns back from HBA if it
fits the description above and if yes - resid count is
fixed to 0.
o 467735 This is to fix an erroneous handling of partial
reads of small var size records using large fix read
requests. As a result it was possible for an
application to read more data off the tape than it was
actually written there.
o 474252 This fixed the problem with stale tape state
after MTSEEK
o This patch has support for SONY AKEBONO drive (SONY
GY-10).
o 481862 Current block position reporting is fixed for
3590 drivers
o 485594 The problem with close() fails on end of tape
for exabyte drives is fixed.
o 497666 The problem with ioctl not failing if given
illegal space addresses is fixed.
o 499453 High speed locate was "slow" on STK SD3 and 9490
-- upper 10 bits of block number were being stripped
off.
o 502518 Add support for the SONY DDS3 DAT drive, in the
same manner and degree as for the Seagate (formerly
Archive ARDAT) DDS drives, including audio over scsi.
o 507744 When writing a tape on a timberline drive, the
MTIOCGET ioctl returns zero for the position for the
second half of the tape.
1.5 Subsystems Included in Patch SG0002442
This patch release includes these subsystems:
o patchSG0002442.eoe1_sw.unix It replaces the tpsc
driver. The tpsc driver is a loadable driver, so there
is no need to reboot after installing this patch. Use
the command: "/sbin/ml unld 144" to be sure that the
previous tape driver is no longer loaded, if you want
to be sure you use the one from this patch.
o patchSG0002442.eoe1_man.unix
1.6 Installation Instructions
Because you want to install only the patches for problems
you have encountered, patch software is not installed by
default. After reading the descriptions of the bugs fixed
in this patch (see Section 1.3), determine the patches that
meet your specific needs.
If, after reading Sections 1.1 and 1.2 of these release
notes, you are unsure whether your hardware and software
meet the requirements for installing a particular patch, run
inst. The inst program does not allow you to install
patches that are incompatible with your hardware or
software.
Patch software is installed like any other Silicon Graphics
software product. Follow the instructions in your Software
Installation Administrator's Guide to bring up the miniroot
form of the software installation tools.
Follow these steps to select a patch for installation:
1. At the Inst> prompt, type
install patchSGxxxxxxx
where xxxxxxx is the patch number.
2. Initiate the installation sequence. Type
Inst> go
3. You may find that two patches have been marked as
incompatible. (The installation tools reject an
installation request if an incompatibility is
detected.) If this occurs, you must deselect one of
the patches.
Inst> keep patchSGxxxxxxx
where xxxxxxx is the patch number.
4. After completing the installation process, exit the
inst program by typing
Inst> quit
1.7 Patch Removal Instructions
To remove a patch, use the versions remove command as you
would for any other software subsystem. The removal process
reinstates the original version of software unless you have
specifically removed the patch history from your system.
versions remove patchSGxxxxxxx
where xxxxxxx is the patch number.
To keep a patch but increase your disk space, use the
versions removehist command to remove the patch history.
versions removehist patchSGxxxxxxx
where xxxxxxx is the patch number.
1.8 Known Problems INST SUBSYSTEM REQUIREMENTS No Requirements Information Available. INST SUBSYSTEM CHECKSUMS These checksums help to provide a 'signature' for the patch inst image which can be used to authenticate other inst images. You can obtain this kind of output by running sum -r on the image (from the command line): 22293 2 patchSG0002442 56302 42 patchSG0002442.eoe_man 24131 768 patchSG0002442.eoe_sw 29001 8 patchSG0002442.idb INST SUBSYSTEM FILE LISTINGS The following lists the files which get installed from each subsystem in the patch:
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Document Id: 20021117070259-IRIXPatch-1142
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