Go through you lan interfaces (Net adapters) and check them (speed configuration etc...)
check inetd status:
Use utilities like iptrace, ipreport to find anything suspicious...
Hi
I have a cross reference file which contains 86000 records. The data is old number:new number. There are 100s of files where i need to search for old number and append corresponding new number (preceded by @) to the line containing old number. The files contain millions of records.... (9 Replies)
Hi Expert,
Below is a real production environment issue:
we are using shell script to FTP to a remote server and fetch around 150 files every day, for each file we need to keep a entry inside ORACLE DB table, before insert into table, each file has a associated logid, which need to be... (2 Replies)
Hi All,
There are few OpenBSD 4.8 servers without compiler installed at my working place. However, sometimes there are some patches released for patching the kernel.
My question is: Can I setup a non production OpenBSD 4.8 server as a test machine with compiler installed and use it to... (1 Reply)
Hello All,
Critical AIX production box crashed/rebooted while our team is working on it and we need to generate a detailed report for that, below are few questions that need to be included in the report. (We are System Administration team and everyone in our team has root access via sudo as well... (3 Replies)
Hello Everyone,
Can anyone please provide me the checklist for validating our newly built AIX LPARs. AIX is new in our environment. So I'm looking for a reference document or checklist to verify new LPARs.
I believe most of the companies does have some kind of check list to verify. please... (4 Replies)
Hello,
I've set up email alerts on AIX Servers. so that i can get email notifications (via mail relay server) when ever there is abnormal behavior.
for example
1) my script monitors CPU/disk/memory etc... when it reaches high water ark, it will send an email alert.
2) disk usage alerts
3)... (5 Replies)
1)We have 2 node cluster RAC on AIX:
->test1
->test3
2) After rebooting server both the node sequentailly, we are getting below error from errpt command :
# errpt |more
IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION
FE2DEE00 0901223914 P S SYSXAIXIF DUPLICATE IP ADDRESS... (2 Replies)
Hi all,
I have tried to send an email with the below script. but i am not getting the subject of the email where it is present in the simply.txt.
I am using HP UNIX server.
I am not sure what mistake i made in the below unix command. any help would be appreciated.
cat simply.txt ... (2 Replies)
hi all,
i am not getting with the email attached not sure what wrong with the syntax can u help me out plz.
cat notavailabltext.txt
please reach to team for any issues.
uuencode notavailable.txt notavailable.txt | mailx -m -s "Files are available" arun@trival.com < notavailabltext.txt (6 Replies)
I have a perl that is sending emails in a bad format:
"begin 644 Included.doc
M*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ
M*BHJ*BHJ*BHJ*BH*4U5#0T534T953"!-1$XG<R!F;W(@07)C:&EV92!022`M
M($-A;F-E;`HJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ*BHJ... (1 Reply)
Discussion started by: mrn6430
1 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)