Does anyone confirm this information ?
The firmware bug which will cause it to report an error to its host
after 49 days of continuous operation. If that host is a RAID card
(motherboard SATA & direct O/S access seems to be more tolerant), it
will probably be dropped from the RAID array. If your entire RAID volume
is made of VelociRaptors, and they all powered on at the same time, they
will all fail simultaneously."
It seems this part numbers are impacted by this problem :
*Corrected an issue where after 49 days of continuous operation the drive
could falsely report an error to the Host. This issue does not result in
loss and only occurs once every 49 days of continuous operation and only
if a read/write operation is in progress when the counter rolls to zero. The
new firmware resolves this issue but as an alternate workaround, the drive
can be power cycled before 49 days elapses to avoid the potential error.*
This info come from the storagereviews and have been disclosed widely by
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From: Michal Soltys <soltys@zi...> - 2009-09-29 09:33:47
Erwan Velu wrote:
> Hey folks,
> Does anyone confirm this information ?
People enjoying relatively busy RAID setups with velociraptor drives.
If you dig the mailing list archive a bit, you will find plenty of
Justin's post in which he tried to find resolution to that (then
unknown) issue. CC'ed to many other mailing lists as well
(linux-ide, linux-raid, linux-xfs).
WDC has been sitting on it for quite a while with usual corporate
replies (such as velociraptors are not suited for raid, etc.).
An entry in some blog that explained the issue for the
first time, was removed pretty quickly as well.