Mitchell Laks <mlaks(at)verizon(dot)net> writes:
> Well, the raid1 failed (or is failing - or is trying its hardest to fail, not
> clear yet...). This should not have affected the Postgresql database as it is
> safely on a separate drive.
Try turning off the power, physically disconnecting the raid1, and rebooting.
It sounds to me like the raid drive is so wedged that the kernel is
getting confused (or at least hanging operations that theoretically
shouldn't hang).
regards, tom lane