On 11/25/2010 10:10 AM, SZÉKELYI Szabolcs wrote:
Hi,
I'm trying to figure out how to do discovery with authentication, without
luck. I didn't manage to set up the credentials, tried various ways. Iscsiadm
says:
iscsiadm -m discovery [ -hV ] [ -d debug_level ] [-P printlevel] [ -t type -p
ip:port -I ifaceN ... [ -l ] ] | [ -p ip:port ] [ -o operation ] [ -n name ] [
-v value ]
Although:
$ sudo iscsiadm -m discovery -p myiscsistorage:3260 -o new -n \
discovery.sendtargets.auth.username -v myusername
iscsiadm: discovery mode: option '-n' is not allowed/supported
It looks to me that the above syntax allows these options...
Yeah, the docs were wrong. You can pass the new operator to the
discovery command like
iscsiadm -m discovery -t st -p ip -o new
to tell it to only create records for new portals, but you cannot update
the discovery db.
It is sort of fixed in this release
http://kernel.org/pub/linux/kernel/people/mnc/open-iscsi/releases/open-iscsi-2.0-872.tar.gz
You have to use discoverydb mode
// create a new record
iscsiadm -m discoverydb -p myiscsistorage:3260 -t st -o new
// update username and password
iscsiadm -m discoverydb -p myiscsistorage:3260 -t st -o update -n
discovery.sendtargets.auth.username -v myusername
In the old tools you can also just edit iscsid.conf with the
iscovery.sendtargets.auth.username and password then run the iscsiadm
discovery command and it will use the iscsid.conf values.
So could you tell me how to do this?
Another thing: when I want to delete a discovery record from the database,
iscsiadm tells me
$ sudo iscsiadm -m discovery -o delete
iscsiadm: --record required for delete operation
However, I couldn't find --record anywhere in the man page. What is it
supposed to be?
When you run
iscsiadm -m discovery
it shows the discovery records. The ip:port is the record id that you
pass into iscsiadm as the -p argument.
iscsiadm -m discovery
20.15.0.87:3260 via sendtargets
20.15.0.7:3260 via sendtargets
20.15.0.4:3260 via sendtargets
iscsiadm -m discovery -p 20.15.0.7:3260 -o delete
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