>>>>> "Ray" == Ray Van Dolson <[EMAIL PROTECTED]> writes:
Ray> CentOS 5.2 (x86_64), open-iscsi (iscsi-initiator-utils RPM)
Ray> v6.2.0.868. I'm trying to connect my system to two LUNs
Ray> created for me on an MD3000i, but am only able to successfully
Ray> connect to one of the two.
Ray> Initiator is a Dell PowerEdge M600 blade.
Ray> Steps are pretty straightforward:
Ray> 1. Start iscsid 2. Get a list of targets:
Ray> # iscsiadm -m discovery -t sendtargets -p 192.168.130.101
Ray> 192.168.130.101:3260,1
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> 192.168.130.102:3260,2
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> 192.168.131.101:3260,1
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> 192.168.131.102:3260,2
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> [fe80:0000:0000:0000:021e:c9ff:fef3:37df]:3260,1
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> Currently only 192.168.130.101 is active and my initiator has
Ray> a dedicated interface on the same network with IP
Ray> 192.168.130.2/24
Ray> 3. MD3000i admin adds my initiator id to the target LUN(s)
Ray> 4. Log in to the target:
Ray> # iscsiadm -m node -p 192.168.130.101 -T
Ray> iqn.1984-05.com.dell:powervault.6001ec9000f337dd0000000048bdc862
Ray> --login
Hi Ray
I am also using a md3000i. I guess you have 2 controllers with 2
paths to each(because you have 4 targets). The one LUN you cannot
access are probably a "Ghost path" which is only there for failover(When
using multipath)
What this means is that you can ONLY access the LUN's on the controller
"owning" it. The md3000i would default spread the luns over the 2
controllers. So to access your other LUN you have to login to one of the
paths on the other controller or change the preferred path on the
md3000i
I would suggest you setup multipath and dm-rdac. That way the failover
will be automatic.
Even running with multipath and dm-rdac you would get those errors in
your log about it I/O errors on the "ghost path", but you would mount a
/dev/mapper/mpath* device and multipath will use the paths working at
the moment.
Regards
Hasse
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