To Delete an iSCSI discovery target IP address from the kernel registry, use:
# iscsiutil [/dev/iscsi] -d -I <ip-address> [-P <tcp-port>][-M <portal-grp-tag>]
<ip-address> The ip_address specified can be an IPv4 formatted address or a DNS name
<tcp-port> A TCP port may be specified for the iSCSI target. If no port is specified, the default iSCSI target port (3260) will be used.
<portal-grp-tag> The target portal group tag may be specified (a value from 0 to 65535 inclusive); otherwise a default value of 1 will be used.
---------- Post updated at 03:45 AM ---------- Previous update was at 03:37 AM ----------
the error shows IP "192.168.1.252" do not find .
maybe you execute
and reexecute the command to delete the lun.
Hi all
iscsiadm / iscsitadm.
Ive created two devices on a host.
# iscsitadm list target
Target: 1-disk0
iSCSI Name: iqn.1986-03.com.sun:02:f105ddf3-52a4-ed7a-9590-c3d354b8fc32.1-disk0
Connections: 1
Target: 1-disk1
iSCSI Name:... (0 Replies)
Hello,
I am trying to breakdown the cXtXdX (specifically tX) part of an iscsi device.
I know in the fibre SAN world, this tX will usually be a combination of the path to device/device WWN.
From what I understand in iscsi world it is similar, breaking down into... (0 Replies)
I'm using Bacula as my backup system, with full backups going to an LTO2 tape drive, while differentials and incrementals go to a disk array on my main server, babylon4. The tape drive is currently attached to a separate machine, because babylon4 does not have a SCSI controller, nor a free PCI-X... (0 Replies)
I get "mount: I/O error" when trying to mount an existing FAT32 iSCSI target. I also tried formatting the iSCSI target with fdisk and got
fdisk: "Error in ioctl DKIOCSMBOOT"
Details --
According to the format command, the whole disk is allocated to slice 6 and /dev/rdsk shows this as:... (0 Replies)
I get "mount: I/O error" when trying to mount an existing FAT32 iSCSI target. I also tried formatting the iSCSI target with fdisk and got
fdisk: "Error in ioctl DKIOCSMBOOT"
Details --
According to the format command, the whole disk is allocated to slice 6 and /dev/rdsk shows this as:... (1 Reply)
Hi all,
I have a text file with a lot of records.
In each records I have tags like this:
=952 \\$aBNCS-CH\\$bBNCS-CH\\$h1989\\$oBNCS-CH0000001\\$pBNCS-CH0000001\\$yJNL
=952 \\$aBNCS-C.UNIV\\$bBNCS-C.UNIV\\$h1974-77.\\$oBNCS-C.UNIV0000001\\$pBNCS-C.UNIV0000001\\$yJNL
=952... (4 Replies)
hi all,
i'm new here and i have a question,
i wanted to know, what should happen if i delete a LUN that is already mounted on one of my initiators.
thanks! (3 Replies)
Hi,
I wanted to configure new iscsi port on HPUX system, i added the target port address and configured it, once done, went to array side and searched for that host iqn number , but was nt able to find the same, came to host, then when i ran "iscsiutil -pVS" command it gave me below result
... (0 Replies)
I need boot any images from iSCSI and I'd like to boot from linux console of a previous LiveCD booted. Is possible, without gpxe, ipxe firmware or similar? With a simple iSCSI initiator for example? (1 Reply)
rsync with --delete won't honor the delete if the source is something/*. I want the delete to work, but not to delete directories on the target that are peer to the intended directory. For example, using these source and target file structures:
Source on desktop:
~/
Money/
... (4 Replies)
Discussion started by: JavaMeister
4 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)