> I have some concerns here,  from my experience in the past, touching a 
> file ( doing some IO ) will cause the ufs filesystem to failover, unlike 
> zfs where it did not ! Why the behaviour of zfs different than ufs ?

UFS always does synchronous metadata updates.  So a 'touch' that creates
a file is going to require a metadata write.

ZFS writes may not necessarily hit the disk until a transaction group
flush.  

> is not this compromising data integrity ?

It should not.  Is there a scenario that you are worried about?

-- 
Darren Dunham                                           [EMAIL PROTECTED]
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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