On 07/07/2010 04:20 PM, david elsen wrote:

does it have any kernel dependency? Will it work on rhel 5.3 inbox kernel 
(2.6.18.128)?


You can use the userspace tools with any kernels from 2.6.21 to 2.6.35. Do
make user
make install_user

You can use the userspace tools and kernel modules in that tarball with any upstream kernel.org kernel from 2.6.18 to 2.6.35. As far as distro kernels go, I am not 100% sure. I am downloading the rhel ones now. The rhel kernel always has sutff back ported which conflicts. 2.6.18.128 should work though. I think some of the newer rhel kernels did not.


Date: Wed, 7 Jul 2010 14:37:18 -0500
From: micha...@cs.wisc.edu
To: open-iscsi@googlegroups.com
Subject: [ANNOUNCE] open-iscsi-2.0-872-rc2

There is a new release candidate release, open-iscsi-2.0-872-rc2 here:

http://kernel.org/pub/linux/kernel/people/mnc/open-iscsi/releases/open-iscsi-2.0-872-rc2.tar.gz

(still having troubles with open-iscsi.org so it is on kernel.org).

Major changes:

--------------------
- be2iscsi support.


--------------------
- discovery mode is depreciated. The discovery db commands are now fixed
to support the update command (-o update -n name -v value), but it
conflicted with the old default behavior, so this releases adds a
discovery2 command. With this you need to pass in the --discovery/-D
command to instruct iscsiadm to do discovery. If you do not, then it
will do a discovery db operation, so it behaves similar to node mode and
the --login command.

To do discovery do:

# iscsiadm -m discovery2 -t st -p IP:port -D

This will create a discovery record for IP:port if not created. If there
is an existing record, then iscsiadm will use the settings in there.

If you just wanted to create a discovery record do:

# iscsiadm -m discovery2 -t st -p IP:port -o new

And if you wanted to update a record setting run:

# iscsiadm -m discovery2 -t st -p IP:port -o update -n name -v setting

To see settings do:

# iscsiadm -m discovery2 -t st -p IP:port [optional to see CHAP
passwords also use--show]

To see how portals were found:

# iscsaidm -m discovery2 -P 1


--------------------
- The iSNS discovery node is now fully supported and the command has
been marked as stable (or actually the experimental tag was removed).
The discovery command for this has changed.

To discover a target with isns do:

iscsiadm -m discovery2 -t isns -p IP:port

(the iscsid.conf setting is not supported).


You can also set things up so iscsid just does iSNS queries and logs in
and out of targets based on those queries and iSNS SCNs. With this
Discovery Daemon mode there is not need to run the iscsiadm isns
discovery command above. iscsid will do it for you.


To set this up do:


- Create a iSNS record by passing iscsiadm the "-o new" argument in
discovery2 mode.
# iscsiadm -m discovery2 -t isns -p 20.15.0.7:3205 -o new
New discovery record for [20.15.0.7,3205] added.

- Set the use_discoveryd setting for the record.
# iscsiadm -m discovery2 -t isns -p 20.15.0.7:3205 -o update -n
discovery.isns.use_discoveryd -v Yes

- [OPTIONAL] Set the polling interval if using Microsoft or
linux-isns/SLES or RHEL 5 iSNS servers:

# iscsiadm -m discovery2 -t st -p 20.15.0.7:3205 -o update -n
discovery.isns.discoveryd_poll_inval -v 30

To have the new settings take effect restart iscsid by restarting the
iscsi service.


See section 7.4 of the README for more info and details.


--------------------
- There is also a SendTargets Discovery Daemon mode. It works like
linux-iscsi's default mode. Again, for this, you do not have to run
iscsiadm's sendtargets discovery command. iscsid will do it for you. To
set this up do:

- Create a SendTargets record by passing iscsiadm the "-o new" argument in
discovery2 mode.
# iscsiadm -m discovery2 -t st -p 20.15.0.7:3260 -o new
New discovery record for [20.15.0.7,3260] added.

- Set the use_discoveryd setting for the record.
# iscsiadm -m discovery2 -t st -p 20.15.0.7:3260 -o update -n
discovery.sendtargets.use_discoveryd -v Yes

- Set the polling interval.
# iscsiadm -m discovery2 -t st -p 20.15.0.7:3260 -o update -n
discovery.sendtargets.discoveryd_poll_inval -v 30

To have the new settings take effect restart iscsid by restarting the
iscsi service.

See section 7.4 of the README for more info and details.


--------------------
- 2.6.33 - 2.6.35 kernel support added.

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