> >
> > See if you have disk cache turned off. If so turning
> ON disk write
> > cache should alleviate this problem but you better
> have your box on
> > UPS.
>
> Hmm, that's an idea. However, according to sdparm,
> cache is turned on:
>
> Caching (SBC) mode page:
> WCE 1
> RCD 0
>
> One issue could be that earlier (with 1GB of RAM) the
> amount of writes
> that Linux was caching was enough to fit into the SATA
> cache, whereas
> now with 4GB it's more than what the cache will handle.
> Now I need to
> test out this hypothesis by first figuring out how much
> cache the SATA
> drive has... any clue? All dmesg says is that the cache is
> enabled,
> doesn't actually tell you the size.
>
Cache is usually small and kernel is supposed to handle that part, I don't
think it can be increased. To me it looks like there is a problem with paging
activity. Is there a pager module running?
Regards,
--Naresh Narang
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