Re: mirrored device with thousand of mappingtableentries

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Dne 28.2.2011 14:13, Eli Malul napsal(a):
> 
> OK, I will try that and check the implications of that, thanks!!
> 
> But, do you know why having 10,000 extents is causing this overwhelming
> memory usage?
> 

If you really need that many devices - be also sure
you have disabled this kernel config option:

CONFIG_BLK_DEV_INTEGRITY


For some reason it consumes massive amount of memory.
Other than that - you should count with  64KB per device usually.

Zdenek

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