Hello,

According to http://en.wikipedia.org/wiki/Ext3 :
  If barrier=1 is not enabled as a mount option (in /etc/fstab), 
  and if the hardware is doing out-of-order write caching, one 
  runs the risk of severe filesystem corruption during a crash.

Somewhat scary(?)

I suppose that the default value for RHEL ext3 file systems is barrier=0?

In systems with RAID/SAN:
Is this a problem if the RAID controller has battery backed cache?

In systems plain disks:
Is this a problem if "hdparm -W 0 <device>" has been run for the disks at 
boot time?

-- 
Regards,
Troels Arvin <[EMAIL PROTECTED]>
http://troels.arvin.dk/

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