On Thu, 2006-05-18 at 23:40 -0600, Sanjay Nadkarni wrote:
>  You had a file system on top of the mirror and there was some I/O 
> occurring to the mirror.  The *only* time, SVM puts a device into 
> maintenance is when we receive an EIO from the underlying device.  So, 
> in case a write occurred to the mirror, then the write to the powered 
> off side failed (returned an EIO) and SVM kept going.  Since all buffers 
> sent to sd/ssd are marked with B_FAILFAST, the driver timeouts are low 
> and the device is put into maintenance.

Sanjay,
#1 on the Pareto chart of disk error messages is the nonrecoverable
read.  Does SVM put the mirror in maintenance mode due to an EIO caused
by a nonrecoverable read?
 -- richard


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