Scott R. Ehrlich wrote:
On Wed, 20 Aug 2008, Jim Wildman wrote:
Scott R. Ehrlich wrote:
I have a new Dell PowerEdge 2950 running CentOS 5.0 out-of-box and a
Dell MD3000i. I am new to iscsi and, with google and included
documentation, am having a heck of a time trying to get the RAID
volumes I have created on the 3000i to be seen by the OS as usuable
drives. I have printed out SMcli and iscsiadm documentation.
I have asked on the linux-poweredge@xxxxxxxx site, too.
Definitely suggest you update to the latest CentOS if you are in fact
on a 5.0 box. I'll dig out some notes and post them later tonight.
I'd greatly appreciate it. I'd also be curious how the version of
Linux might impact my ability to access the partitions vs using iscsi
commands to do so...
Scott
From my notes on using iscsi CentOS to CentOS (Don't have any other
iscsi devices)
on the initiator
yum install iscsi-initiator-utils
echo "InitiatorAlias=some_meaningful_name" >> /etc/iscsi/initiatorname.iscsi
service iscsid restart
chkconfig iscsid on
then for each target (assuming no chap auth, etc)
iscsiadm -m discovery -p <ip of target>
grab the iqn and 'login' with it
iscsiadm -m node -T <iqn> -p <ip of target> -l
fdisk -l should show the new disk
if multipathd is running, and you repeat the -l command with the same
iqn, but the other ip, then mulitpathd should join them up according to
the rules you have setup (/etc/multipath.conf)
The iscsiadm commands as implemented by RH, maintain a persistent store
of info in /var/lib/iscsi, not in /etc/iscsi.
To release a disk, use -u (instead of -l) or -o delete to remove it from
/var/lib/iscsi
------------------------------------------------------------------------
Jim Wildman, CISSP, RHCE jim@xxxxxxxxxxxxx http://www.rossberry.com
"Society in every state is a blessing, but Government, even in its best
state, is a necessary evil; in its worst state, an intolerable one."
Thomas Paine
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