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Miniguide to fixing Volume-Filesystem errors
Authored by: Auricchio on Apr 29, '11 09:09:58AM

"If your system is having some I/O error then it is sure that there is an HD failure issue."

In most cases there will be no I/O error logged; the drive eventually reads the requested data and doesn't report an error (or the driver ignores some status info).

This is a common failure mode with ATA/SATA drives. Often DiskWarrior will encounter the slowdown and report "Operation delayed due to disk malfunction." DW will then refuse to rewrite the updated directory; it's time to get everything off the drive to a new one.

Over eight years, I've replaced 60 dead or failing drives for clients; 33 of the flaky ones exhibited the "random slowdown" problem, which was detected by DiskWarrior.

As for SMART status, I've only seen it reported once or twice. My experience is that by the time SMART reports a problem, you already see smoke and flames...

EMOJO: mojo no longer workin'
Edited on Apr 29, '11 09:13:25AM by Auricchio

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