hi -- So it seems that my solaris10 u2 machine had hit the "assertion failure " bug described in #233602 -- This machine was running happily for over an year without any issues related to importing of zpools ..and it only hit this recently.. which resulted in an endless loop of kernel panic at boot My question to the developer community hereis under what situations does ZFS suffer from this bug ..silent data corruption ? any other hardware failure ? just trying to see what the actual issue was and I can fix it apart from patching ZFS. Thanks for any help you may render Ram babu. This message posted from opensolaris.org