05-12-2010
We are not using iSCSI so I can't help that much, sorry - found those two articles on how to implement iSCSI:
SVC Information Center
This one on an example using CISCO hardware and a DS4000. As far as I could understand from other sites, the step where you have to define iSCSI targets in /etc/iscsi/targets and the chdevs etc. will be the same for other models of hardware:
Implement iSCSI on AIX
And one more:
Help -
If you get it working, leave a note here what did the trick, ty.
Not sure how good your german is - here is one more describing what to do:
Stor IT Back - herstellerunabhängige Beratung
Some translation of it:
- Since AIX 5.2 iSCSI is implemented to the OS.
- Need a working TCP/IP connection to the storage.
- Is a ping to the iSCSI target successful, you can the software initiator(?) be installed.
- With "smitty -> chgiscsisw" the iSCSI-initiator will be created.
- Further configuration has to be done in /etc/iscsi/targets.
Here an example performance tuning for iSCSI he describes in his article:
Quote:
ifconfig en3 down
ifconfig en3 detach
chdev -a ent3 -a jumbo_frames=yes
chdev -l en3 -a tcp_recvspace=262144
chdev -l en3 -a tcp_sendspace=262144
chdev -l en3 -a rfc1323=1
ifconfig en3 up
At the end he points at
Implement iSCSI on AIX too.
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LEARN ABOUT NETBSD
iscsi-target
ISCSI-TARGET(8) BSD System Manager's Manual ISCSI-TARGET(8)
NAME
iscsi-target -- service remote iSCSI requests
SYNOPSIS
iscsi-target [-46DV] [-b block length] [-f configuration file] [-p port number] [-s maximum number of sessions] [-t target name]
[-v verbose arg]
DESCRIPTION
iscsi-target is the server for iSCSI requests from iSCSI initiators. iscsi-target listens for discovery and login requests on the required
port, and responds to those requests appropriately.
Options and operands available for iscsi-target:
-4 iscsi-target will listen for IPv4 connections, and respond back using IPv4. This is the default address family.
-6 iscsi-target will listen for IPv6 connections, and respond back using IPv6.
-b blocksize
Specify the underlying block size for iSCSI storage which will be served. The possible sizes are: 512, 1024, 2048, and 4096 bytes,
with the default being 512 bytes.
-D When this option is specified, iscsi-target will not detach itself from the controlling tty, and will not become a daemon. This can
be useful for debugging purposes.
-f configfile
Use the named file as the configuration file. The default file can be found in /etc/iscsi/targets. See targets(5) for more informa-
tion.
-p port number
Use the port number provided as the argument as the port on which to listen for iSCSI service requests from initiators.
-s maximum number of sessions
Allow the maximum number of sessions to be initiated when connecting to the target.
-t filename
The target name (as it appears to the iSCSI initiator) can be specified using this flag.
-V iscsi-target will print the utility name and version number, and the address for bug reports, and then exit.
-v argument
The amount of information shown can be varied by using this command. Possible values of argument are net to show network-related
information, iscsi to show iSCSI protocol-related information, scsi to show SCSI protocol information, and all to show information
from all of the above arguments.
FILES
/etc/iscsi/targets the list of exported storage
/var/run/iscsi-target.pid the PID of the currently running iscsi-target
SEE ALSO
targets(5)
HISTORY
The iscsi-target utility first appeared in NetBSD 4.0.
BSD
May 27, 2006 BSD