Archive for July, 2012

Linux: Configuring iSCSI Multipathing

July 2nd, 2012 No comments

A few days before i posted a short howto how to configure iSCSI multipathing with Nexenta. This post covers the configuration of the linux initiator using iSCSI multipathing.

Before we start a preleminary note: It is a very good idea (i´d call it: “required”) to use separate subnets for each physical interface.  Do NOT use the same subnet accross different network interfaces!

If you do not comply with this simple rule you will end up having problems with so called Arp Flux (also documented here, here, here and so on) which requires further modifications.

For configuring and using iSCSI multipathing the following packages are needed:

  • device-mapper-multipath
  • device-mapper-multipath-libs
  • iscsi-initiator-utils

Our testlab used a VM based on Oracle Enterprise Linux 6 Update 2 with two physical interfaces:

  • eth1:
  • eth3:

Read more…

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