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Operating Systems
AIX
How to prevent /dev/rmt* re-assignments
Post 302178321 by bakunin on Tuesday 25th of March 2008 08:40:11 AM
03-25-2008
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Following the below info:
----------------------------------------------------------------------------------
# SYNTAX: /dev/rmt/<unit number><density>
· Density: l, m, h, u/c (low, medium, high, ultra/compressed, respectively)
· BSD behavior: (optional) b
· no rewind: (optional) n
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2. Solaris
hi all ,
i have just installed solris 9 on a sun 280R ,and i have appleid the recommended patches .
after the installation i have found that /dev/rmt/ directory is empty , i thought that was normal , so i attached my DDS4 external tape drive and treid :
devfsadm -C
devfsadm -v
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3. AIX
Hi.
After the shutdown for SWIFT Alliance Server, tape backup process will be done. Unfortunately, I encountered this error message when I performed the database tape backup. The error was "/dev/rmt 0.1 block size is 0; variable; must be 1024 fixed. Consider reconfiguration through 'chdev'... (2 Replies)
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Hi Guys,
I a newbie in Unix environment. I need a help to detect my external SCSI tape drive. I tried with command drvconfig;devlinks;tapes.. but when I go to /dev/rmt/, the directory is still empty.
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5. Solaris
I have an HP Proliant DL380 with Intel Processors that I recently loaded Solaris 10 with latest patches on it. I'm trying to do a ufsdump to an HP DAT 40 tape drive via SCSI, but I can't get it to do anything because /dev/rmt is empty. I've tried the following with luck:
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6. Hardware
# mt stat
HP DDS-4 DAT (Sun) tape drive:
sense key(0x0)= No Additional Sense residual= 0 retries= 0
file no= 0 block no= 0
mt -f /dev/rmt/0mn erase
/dev/rmt/0mn: write protected or reserved.
Getting error while ufsdump ....
--- Dumping / to /dev/rmt/0mn ---
DUMP: Date... (1 Reply)
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7. Solaris
# mt stat
HP DDS-4 DAT (Sun) tape drive:
sense key(0x0)= No Additional Sense residual= 0 retries= 0
file no= 0 block no= 0
mt -f /dev/rmt/0mn erase
/dev/rmt/0mn: write protected or reserved.
Getting error while ufsdump ....
--- Dumping / to /dev/rmt/0mn ---
DUMP: Date... (5 Replies)
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8. AIX
Hello,
I attached a tape drive to one of my partitions but i cannot find the device.
I run the command lsdev|grep rmt but i dont get anything in return.
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Hi Peeps,
Got a very wierd problem (not a show stopper, but really annoying).
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Hi,
Unable to make tape backup, please help.
/opt/ignite/bin/make_tape_recovery -a /dev/rmt/?mn -I -v -m tar -x inc_entire=vg00
* Creating local directories for configuration files and archive.
======= 04/25/16 16:28:08 IST Started /opt/ignite/bin/make_tape_recovery.
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LEARN ABOUT OSX
mkdevalloc
mkdevalloc(1M) System Administration Commands mkdevalloc(1M) NAME
mkdevalloc - Make device_allocate entries SYNOPSIS
/usr/sbin/mkdevalloc DESCRIPTION
The mkdevalloc command writes to standard out a set of device_allocate(4) entries describing the system's frame buffer, audio and removable media devices. The mkdevalloc command is used by the init.d(4) scripts to create or update the /etc/security/device_allocate file. Entries are generated based on the device special files found in /dev. For the different categories of devices, the mkdevalloc command checks for the following files under /dev: audio /dev/audio, /dev/audioctl, /dev/sound/... tape /dev/rst*, /dev/nrst*, /dev/rmt/... floppy /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd* removable disk /dev/sr*, /dev/nsr*, /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s? frame buffer /dev/fb All entries set the device-minimum and device-maximum fields to the hex representations of ADMIN_LOW and ADMIN_HIGH, respectively. The device-authorization field is set to solaris.device.allocate, except for the framebuffer entry, where it is set to *. The device-name, device-type and device-clean fields are set to the following values: device-name device-type device-clean audio audio audio audio_clean_wrapper tape mag_tape_0,1,... st st_clean floppy floppy_0,1,... fd disk_clean removable disk cdrom_0,1,... sr disk_clean frame buffer framebuffer fb /bin/true ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ SEE ALSO
allocate(1), bsmconv(1M), attributes(5) NOTES
mkdevalloc might not be supported in a future release of the Solaris operating system. SunOS 5.10 8 Oct 2003 mkdevalloc(1M)