Hi..
i am using HPUX ..and my /usr and /var file sytem has got full...
now i want to increase this file system size.
so what i have to do..
1st i have to go to init 1(single user mode)
umount the LV
increase the size of LV
then extendfs
then mount the File system and reboot to... (6 Replies)
We have two files /var/adm/wtmp and /var/opt/OV/tmp/OpC/guiagtdf
Could you please tell me if what these files are and if I can purge them as they are very big and Vi will not let me look at them, it gives me a message 'file to long'.
Help any ideas
Thanks
:cool: (3 Replies)
Hi Engg. ! :cool:
When I am trafering a file through ftp from windows to UNIX having size about 1.24 GB then at the end of file transfer I got a error message "Extended file size limit (coredump)" and finnally ftp stop, whenever on other UNIX server the same file from windows... (1 Reply)
I am running into a problem after uploading files to a document archive on our local intranet. If the file size is >1 MB, then whenever I get a "list of contents" of the directory, the browser returns ""page cannot be displayed. This seems to happen if any file in the directory is >1MB. Every... (1 Reply)
hi all,
in my server there are some specific application files which are spread through out the server... these are spread in folders..sub-folders..chid folders...
please help me, how can i find the total size of these specific files in the server... (3 Replies)
I'm working on a IBM PC Serveur 325.
I have a sequential file with more than 800000 records. The size of that file is 136755200. I wrote a cobol program (RM cobol) to delete records. Now the file has 180000 records and the size still the same 136755200. What I need to do to decrease the size.... (1 Reply)
I'm working on a IBM PC Serveur 325.
I have a sequential file with more than 800000 records. The size of that file is 136755200. I wrote a cobol program (RM cobol) to delete records. Now the file has 180000 records and the size still the same 136755200. What I need to do to decrease the size.... (3 Replies)
#!/bin/sh
##########################################################################################################
#This script is being used for AOK application for cleaning up the .out files and zip it under logs directory.
# IBM
# Created
#For pdocap201/pdoca202 .out files for AOK
#1.... (0 Replies)
Hi everyone
can you people please help me in the problem below
-bash-3.00$ ls -ltr abc abc.tar
-rw-r--r-- 1 1hinaa2 17 Jan 17 14:09 abc
-rw-r--r-- 1 1hinaa2 2048 Feb 17 07:03 abc.tar
-rw-r--r-- 1 1hinaa2 135 Feb 17 07:03 abc.tar.gz
why this strange... (2 Replies)
I have been searching both on Unix.com and Google and have not been able to find the answer to my question. I think it is partly because I can't come up with the right search terms.
Recently, my virtual server switched storage devices and I think the problem may be related to that change.... (2 Replies)
Discussion started by: jmgibby
2 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)