We seem to be experiencing some hardware related hiccups specific to the 150GB Western Digital Raptors when mirrored on an Intel on board RAID controller.
We have a large number of Seagate RAID 1 mirrors on Intel on board RAID controllers and to date have not experienced this same issue under similar circumstances.
What we have been seeing is the breaking of the mirror if there is a hardware stall or freeze due to either an incorrectly installed/configured hardware driver or a malfunctioning piece of hardware that locks up the system.
So far, the breaking of the mirror seems to be isolated to the Raptors.
In one case, we had a mirror break that also took out the OS.
Keep in mind that we are only installing the Raptors into high end systems that we build in-house for key clients. This is our first run back into Western Digital drives in over five years.
However, any systems that we have put together so far that have displayed the above issues have indeed experienced the RAID 1 mirror being broken and at least needing an array rebuild or in some cases an array reinitialization and now in one case a reload of the OS.
On initial observation, it looks like the Raptors are a little more sensitive to a break in the data stream.
Microsoft Small Business Specialists
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