Very low disk performance on 5.x

[Petri Helenius]

Poul-Henning Kamp wrote:

>In message <42761FA7.1030500 at centtech.com>, Eric Anderson writes:
>  
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>>I'll be honest here, I don't care much if the speed difference between 
>>4.X and 5.X is measureable, or whatever.  What I find is a little 
>>telling of an issue somewhere, is that READS are slower than WRITES! 
>>This is totally bogus to me - [...]
>>    
>>
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>If the disk has bad sectors or other hardware issues, this is not
>an atypical result.
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>  
>
The drives I have report this using SMART and the counters stay at zero. 
Yes, we've seen the counters go nonzero when problems do exist.

Pete