Hello,
I need to increase /var on a DG-UX R4.2 AViion Pentium Pro box - having never used DG-UX I'm unsure how to do this - can anyone point me in the right direction? Also, can I do it with the system up or do I have to take it to single user mode??
MAny thanks. (0 Replies)
I know very basic Unix commands s I would really appreacite the assistance of a Unix guru.
I am installing an application on a Sun server, when attempting to install I get an error that says I do not have enough sapce allocated for my install directory. Error says it has 7235m but needs 15360m.... (2 Replies)
Question
I am not a hp admin but aix admin.
I am wondering if to increase the fs /var we really have to umount the fs so means stop the system ... just to do an extendlv ?
It is what I saw on man page of extendlv and that surprise me. On aix we can dynamically increase a fs and with version... (2 Replies)
Is there a limit of 512Mb when doing a "chfs -a size=XXXXX /myfs" ?
I managed to increase /var to 512MB fine, no issues, then i wanted to increase /usr to 2Gb, but when i enter:
# chfs -a size=2260992 /usr
chfs: 0506-908 Cannot reduce size... (5 Replies)
I trying to calculate drive space with RAID. I know the equation is:
(n-1)/n * drive capacity
but, when I use that my calculations don't come out when I compare to what I already know exists:
I have 3 - 18.2gb SCSI drives that contain two logical drives C & D.
Using the math, (3-1)/3 * 18.2... (1 Reply)
Hi
have IBM aix. unix
my directories are full
when i use
$ df -k
filesystem kbytes used avail capacity mounted on
/dev/root 288880 288880 288880 100% /
/proc 0 0 0 ... (4 Replies)
Hello,
I have a little problem, I would like to know how to add disk space on an NCR version 4 and above all whether it still contains vdisk space
smp001-4 4.0 3.0
/dev/dsk/vdisk15 3940505 3807833 132672 97% /data
in the dktab :
/dev/dsk/vdisk15 mirror 2 ... (0 Replies)
Guy's
This is our page space , i want some information about page space and I want the good way to how to increase the page space and what's the recommended page space that need to be configured
Page Space Physical Volume Volume Group Size %Used Active Auto Type Chksum
hd6 hdisk0... (8 Replies)
hi friends, i am a new system adminstrator and i had a directory /h03 getting full at 95%, how do i give more space to bring down it to about 70% ? i cannot delete any files inside as it is all important to the applications
/dev/dsk/c1t3d0s0 64G 60G 3.8G 95% /h03
any idea ? (4 Replies)
I need to increase the /var (UFS) filesystem and root disk under veritas control or root disk is encapsulated
# df -k /var
Filesystem kbytes used avail capacity Mounted on
/dev/vx/dsk/var 13241195 12475897 674524 96% /var
# fstyp /dev/vx/dsk/var
ufs
# pkginfo... (1 Reply)
Discussion started by: amity
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)