Hi, In a Linux cluster setup, I have some issues. I am trying to use 'md' driver in Linux for multipath to shared storage with Enterprise Virtual Array 3000 (EVA 3000) The O/S is SuSE Linux ES 8.0 which runs on both the cluster nodes (HP ProLiant ML330 machines). I use Qlogic HBAs (of different versions) both supporting failover. Do I still need to use the Driver Patch for EVA Controller Failover? I can add the Virtual Disks from the EVA console and this does not need additional Secure Path installation to get detected. EVA offers different RAID functions such as 0,1 and 5 and I guess I use the software RAID on Linux (implemented thru md drivers) to provide multipath support. Is there any need for implementing a software RAID on top of an EVA which already has hardware RAID functionality (say for example, if I want mirroring instead of multipath) The MC/SG spec says that 'md' driver should not be active at the same time on both the cluster nodes. So, I am not using the 'fd' type of partition which starts the arrays at boot time. I just use the default 83 type. Is there any specific need to update to 2.6 kernel in order to support LVM 2? The kernel version of the O/S in the cluster nodes is 2.4.19 which contains lvm 1.0.5-51. It does not support 'pvremove' and probably the tool 'mkraid' does have some bugs. No idea if there are fixes for the same. Is it better to use 'mdadm'? I have tried to do the same sequence of steps listed in "Managing Service Guard for Linux" to create the logical volume infrastructure. But the first disk partition grouped using md does not become part of the array --- after rebooting the nodes. After rebooting, the second node should get the configuration from the primary node replicated but this does not happen for the first partition. Only the second partition seems to be shown active. Any hints/suggestions would be appreciated. Regards, Biju A __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
