Q1: can anyone tell me how cfgadm keeps track of the device even if the device is disconnected ,
when we disconnect a device using cfgadm
cfgadm -ys disconnect <ap_id>
then the device disappears from the lshal o/p. HAL uses libdevinfo for the device list. if the device is not there in the... (2 Replies)
Dear All,
I need a small script which will read from a txt file the first and and second and the last clumn of the file and determine how many are having +000 ,+024,+048 error codes.
Please help me as soon as possible.
Rgrds,
A.Ali (2 Replies)
Solaris 10, Solaris Cluser 3.2, two node cluster, all software installed succefully, all nodes join to the cluster
And on snod2 didn't recognize disks as a did devices and I can't make a quorum device.
snod1#/usr/cluster/bin/cluster status
=== Cluster Nodes ===
--- Node Status ---
Node... (2 Replies)
Is there a trick to mounting swap in n a lvm? I can't get it to work.
# swapon -va
swapon on /dev/mapper/VG-lv_swap
swapon: /dev/mapper/VG-lv_swap: found swap signature: version 1, page-size 4, same byte order
swapon: /dev/mapper/VG-lv_swap: pagesize=4096, swapsize=4294967296,... (1 Reply)
Below is the error being repeated on my Solaris 9 Sun-Fire-V890 machine.
SAN team confirmed as everything is fine from their end. I did google and found that some people say its a known Oracle bug when you have Oracle 10G installed on your system but I kind of disagree with them. Please see below... (2 Replies)
I am getting error in a shell script having a simple date command.
Error is " write to 1 failed ".
We saw that /tmp folder was 100% full. When we cleared some space in /tmp folder then script worked fine. Why does date command(or any other command) require space in /tmp folder? Which settings... (6 Replies)
Hello,
I want to install GCC gcc-4.8.1-2.src.rpm for AIX 6.1
when I lance my command rpm -i gcc-4.8.1-2.src.rpm
I have this error
unpacking of archive failed on file gcc-4.8.1.tar.bz2: cpio: copy failed - No space left on device
I checked the free space and I am surpise becouse I have... (7 Replies)
We have an IBM Power 710. It has a USB port on the front. I have done some searching and see that there is information out there on how to create a JFS2 file system on USB drives. A few have commented that they would not recommend it, if the server is important, may crash the server... Just... (0 Replies)
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)
Running a installation on Solaris 11 and getting error write to 1 failed
If anyone can advise ?
ORIGINAL_PATH="${PATH}"
# prepend /usr/xpg4/bin to PATH as needed
temporaryPath=`expr "${PATH}:" : '\(/usr/xpg4/bin:\)'`
if
then
PATH="/usr/xpg4/bin:${PATH}"
seem to have... (6 Replies)
Discussion started by: Mpumi
6 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)