i did reboot the system but this didn't solve problem
After the problem was resolved automatically i checked messages and found scsi errors related to HP tape drive.
somehow drive was automatically registered due to some scsi error i guess
Hi,
I have problem detecting my tape drive.
In SAM, once I click on the either Automated Backups or Interactive Backup and Recovery icon, the screen will prompt searching for device and ..... nothing appears in the list.
In the end, I have the kill the SAM process and reboot the system and... (1 Reply)
Hi,
1- how can I find my tape device on my server ?
2-I have a backup of a data base distributed on several file system. How using tar -x can I extract from tape to each apropriate file system ? For exemple the data base was on /d1 ; /d2 ; and /d3. Now I cd to which /dn and use tar -xvf /dev/nm0... (0 Replies)
Hi,
Someone knows hot to create a flash archive to a remote tape device?
Here is my try:
$flarcreate -n nereus -S -t lisdev:/dev/rmt/1n
WARNING: hash generation disabled when using tape (-t)
current filter settings
Creating the archive...
ERROR: Unable to work archive.
Regards (4 Replies)
I disconected external device which was configured as rmt0. When I connect it again and run cfgmgr device name has changed (internal drive which was rmt1 is now rmt0 and external drive was rmt0 and is rmt1) and I dont know how to back it out. The thing is that for all backups I use new modell... (2 Replies)
Hi,
We've been having problems with our NetWorker Silo servers (running HP-UX) concerning the tape device files under /dev/rmt. For some reason they are constantly being removed/recreated (up to a couple of times per hour):
crw-rw-rw- 1 bin bin 205 0x240300 Apr 5 19:07... (1 Reply)
Hi All,
After (by accident) closing a session that ran a restore command I can not access the tape drive anymore.
I get the following error:
# tctl -f /dev/rmt0 rewind
/dev/rmt0: Resource temporarily unavailable
But I cannot find any processes associated with the tape device:
# ps... (2 Replies)
Hi all
The situation is as follows:
We need to take an mksysb image from an AIX 6.1 server. From some reason (irrelevant to this discussion) this server does not have access to a local CD-ROM or a tape drive. We do have another server with AIX 6.1 (but different technology level) which got access... (1 Reply)
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.
(Mon... (4 Replies)
Currently I am using this laborious command
lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}'
Would like to know if there is any shorter method to get this mapping of... (2 Replies)
Discussion started by: royalibrahim
2 Replies
LEARN ABOUT FREEBSD
timecounters
TIMECOUNTERS(4) BSD Kernel Interfaces Manual TIMECOUNTERS(4)NAME
timecounters -- kernel time counters subsystem
SYNOPSIS
The kernel uses several types of time-related devices, such as: real time clocks, time counters and event timers. Real time clocks are
responsible for tracking real world time, mostly when the system is down. Time counters are responsible for tracking purposes, when the sys-
tem is running. Event timers are responsible for generating interrupts at a specified time or periodically, to run different time-based
events. This page is about the second.
DESCRIPTION
Time counters are the lowest level of time tracking in the kernel. They provide monotonically increasing timestamps with known width and
update frequency. They can overflow, drift, etc and so in raw form can be used only in very limited performance-critical places like the
process scheduler.
More usable time is created by scaling the values read from the selected time counter and combining it with some offset, regularly updated by
tc_windup() on hardclock() invocation.
Different platforms provide different kinds of timer hardware. The goal of the time counters subsystem is to provide a unified way to access
that hardware.
Each driver implementing time counters registers them with the subsystem. It is possible to see the list of present time counters, via the
kern.timecounter sysctl(8) variable:
kern.timecounter.choice: TSC-low(-100) HPET(950)i8254(0)ACPI-fast(900) dummy(-1000000)
kern.timecounter.tc.ACPI-fast.mask: 16777215
kern.timecounter.tc.ACPI-fast.counter: 13467909
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.ACPI-fast.quality: 900
kern.timecounter.tc.i8254.mask: 65535
kern.timecounter.tc.i8254.counter: 62692
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.HPET.mask: 4294967295
kern.timecounter.tc.HPET.counter: 3013495652
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.HPET.quality: 950
kern.timecounter.tc.TSC-low.mask: 4294967295
kern.timecounter.tc.TSC-low.counter: 4067509463
kern.timecounter.tc.TSC-low.frequency: 11458556
kern.timecounter.tc.TSC-low.quality: -100
The output nodes are defined as follows:
kern.timecounter.tc.X.mask is a bitmask, defining valid counter bits,
kern.timecounter.tc.X.counter is a present counter value,
kern.timecounter.tc.X.frequency is a counter update frequency,
kern.timecounter.tc.X.quality is an integral value, defining the quality of this time counter compared to others. A negative value means
this time counter is broken and should not be used.
The time management code of the kernel chooses one time counter from that list. The current choice can be read and affected via the
kern.timecounter.hardware tunable/sysctl.
SEE ALSO attimer(4), eventtimers(4), ffclock(4), hpet(4)BSD April 12, 2014 BSD