Friday, May 16, 2008

Fun with iSCSI

Yesterday I heard about openfiler "Openfiler consolidates several open source technologies on the Linux 2.6 kernel base to deliver a comprehensive storage management solution that meets the needs of enterprise applications, users and administrators." (from openfiler website).
I always wanted to play with iSCSI but didn't have any appliance to play with it but with openfiler i just needed another PC. But then since I had just one PC I came up with the following idea.
Install VMWare-server 1.0.5 on my laptop (Dell Vostro 1500) running Slackware 12.0 installed openfiler on the VMWare (VM image available on openfiler's website), and also cerated a M$ windows XP VM. Then installed iSCSI initiators on my Slackware 12.0 using the open-iSCSI project and on the win XP i installed Microsofts iSCSI intiator. Then mounted iSCSI targets from openfiler on Slackware and XP, made several I/O operations.
In my tests I olso tried to expand a published iSCSI disc. However this was not possible through the web-UI but was able to expand the disk via the commandline interface by using the "lvextend" command as openfiler uses LVM for it's disk management. But I had to restart the iSCSI service to have the change visible to the iSCSI initiators.

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