----- Original Message ----- From: "Doug White" <[EMAIL PROTECTED]>

Would that also explain the errors on ad6 though? Seems quite strange to
be getting errors on 3 out of the 4 disks in the 0+1 array.

I'd say ad4 went kaboom and is corrupting traffic on its bus, thus the ad5
CRC warnings.  (Remember that Parallel ATA drives are master/slave.)

ad4: timeout waiting to issue command
ad4: error issueing WRITE_DMA command
ar0: WARNING - mirror protection lost. RAID0+1 array in DEGRADED mode
ad4: timeout waiting to issue command
ad4: error issueing WRITE_DMA command
ad4: write metadata failed
ad6: req=0xc49b0578 WRITE_DMA semaphore timeout !! DANGER Will Robinson !!
ad5: WARNING - WRITE_DMA UDMA ICRC error (retrying request) LBA=2325663


   Steve


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