04-20-2010
why not compare and edit the /kernel/drv/fp.conf to enable multipathing globally?
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We have loads of Sparc solaris 8 boxes. Each one has 2 physical interfaces and 2 virtuals set up for multipathing (See ifconfig below). Problem is that I cannot ping the qfe0 interface IP from the local machine. I can ping all other local interfaces, but not 10.161.19.5. I can ping it from... (3 Replies)
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I have solaris 10 sparc. I installed a Qlogic hba card.
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Hi,
I saw your post on the forums about how to setup IP multipathing. I wanted your help on the below situation .
I have 2 servers A and B . Now they should be connected to 2 network switches . S1 and S2.
Now is it possible to have IP Multipathing on each of the servers as follows ?
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Hi,
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5. Solaris
I 've a doubt about the no. of paths to a disk in my Solaris10 box.
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00 SUNW,emlxs LPe11002-S
00 SUNW,emlxs LPe11002-S
00 ... (3 Replies)
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6. Solaris
Hai
we using emc storage which is conneted to M5000 through san switch.
we asign 13 luns but in server it is showing 22 luns.
i enable the solaris multipathing (MPxIO)
#more /kernel/drv/fp.conf in that file
MPxio-disable=no
#mpathadm list lu
it shows ... (2 Replies)
Discussion started by: joshmani
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I have a server running redhat 5.5 and it has one SAN device presented to it as LUN9. How can I clean up the remaining entries. I cannot afford to interupt the service. Please assist.
# multipath -l
mpath0 (36000097000019260298953666633436) dm-11 EMC,SYMMETRIX
\_ round-robin 0
\_ 2:0:0:9 ... (2 Replies)
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8. AIX
Hi,
I know the concept of multipathing, but would like to know how to configure multipathing in AIX.
or software/driver is by default present in AIX??????
How to find out wheather multipathing is configured in AIX?????
Regards,
Manu (4 Replies)
Discussion started by: manoj.solaris
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9. Solaris
Hi,
I believe this is an OS multipathing issue - Solaris 10
We have x2 Dual port 8GB Qlogic HBA's installed in our SOlaris 10 host.
HBA0 (IOU0) Port WWN's - 09f4 (pci@3,700000/SUNW,qlc@0)
09f5 (pci@3,700000/SUNW,qlc@0,1)
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10. Red Hat
I have a couple of questions regarding multipath.
If I do vgdisplay vg01, I see it is using 1 PV: /dev/dm-13
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Secondly, let's say this time vg01 says... (1 Reply)
Discussion started by: keelba
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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)