Oracle RAC 10g and NAS Failover

We are running iSCSI and a clustered NAS with Oracle RAC 10gR2 Standard, Solaris 10.

While doing NAS failover testing from each controller we seem to lose connectivity and RAC reboots.

The problem occurs when we fail back the NAS and RAC will reboot.

Any ideas? The OS see's the iSCSI LUN's but RAC has some issues.

Thanks

check the logs, plus you need to define what 'RAC reboots' means

RAC isnt a thing, either the database restarts or the OS does

RAC reboots both nodes, OS and all....

did you find any thing in cluster logs??

Thanks,