[SLUG] Problems configuring Multipath for EMC Clariion AX4-5i

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I am attempting to configure A CentOS 5.3 server iscsi initiator to connect
to a Clariion iSCSI target. I am not going to use PowerPath, but will use
multipath. I have no ISNS. The storage is using Navisphere Express. At
this point, I am having no luck creating the block devices.

Thus far, this is what I have done:

1. Install initiator: yum install iscsi-initiator-utils

2. configure iscsid.conf node.session.* and discovery.sendtargets.*
settings appropriately to correspond to Clariion target. start iscsi

3. initiate iscsiadm to perform a discovery. all 4 paths to the target
are found

4. restart isci

At this point, I am not seeing the corresponding block devices. I am
getting the following errors on the box, repeating for /dev/sda thorugh
/dev/sdd.

Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdb, sector
2097144
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdb, sector 0
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdb, sector 8
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdb, sector 0
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 0
Apr 8 13:11:18 serverx last message repeated 2 times
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 8
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 0
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector
2097144
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector
2097144
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 0
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 8
Apr 8 13:11:18 serverx kernel: end_request: I/O error, dev sdc, sector 0

Am I going to need to configure multipath first?

-- 
Steven@StevenKentJohnson.com
http://www.stevenkentjohnson.com
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