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Re: PostgreSQL block size for SSD RAID setup?


  • From: henk de wit <henk53602(at)hotmail(dot)com>
  • To: <stark(at)enterprisedb(dot)com>
  • Cc: <pgsql-performance(at)postgresql(dot)org>
  • Subject: Re: PostgreSQL block size for SSD RAID setup?
  • Date: Wed, 25 Feb 2009 17:13:34 +0100
  • Message-id: <COL104-W385B37179EFD710F5419C0F5AC0@phx.gbl> <text/plain>

>You might also be interested in:
> 
> http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/
> 
> http://thunk.org/tytso/blog/2009/02/22/should-filesystems-be-optimized-for-ssds/

Thanks a lot for the pointers. I'll definitely check these out.
> It seems you have to do more work than just look at the application. You want
> the application, the filesystem, the partition layout, and the raid device
> geometry to all consistently maintain alignment with erase blocks.
So it seems. PG is just a factor in this equation, but nevertheless an important one.
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