Messages in this thread | | | Date | Mon, 16 May 2005 09:48:58 -0400 | From | Mark Lord <> | Subject | Re: Linux does not care for data integrity |
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>To make this explicit and unmistakable, Linux should be ashamed of >having put its users' data at risk for as long as it has existed, and >looking at how often I still get "barrier synch failed", it still does >with the kernel SUSE Linux 9.3 shipped with.
With ATA drives, this is strictly a userspace "policy" decision.
Most of us want longer lifespan and 2X the performance from our hardware, and use UPSs to guarantee continuous power & survivability.
Others want to live more dangerously on the power supply end, but still be safe on the filesystem end -- no guarantees there, even with "hdparm -W0" to disable the on-drive cache.
Pulling power from a writing drive is ALWAYS a bad idea, and can permanently corrupt the track/cylinder that was being written. This will toast a filesystem regardless of how careful or proper the write flushes were done.
Write caching on the drive is not as big an issue as good reliable power for this.
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