Re: Page Checksums

On 12/21/2011 10:49 AM, Stephen Frost wrote:
> * Leonardo Francalanci (m_lists@yahoo.it) wrote:
>    
>> I think what I meant was: isn't this going to be useless in a couple
>> of years (if, say, btrfs will be available)? Or it actually gives
>> something that FS will never be able to give?
>>      
> Yes, it will help you find/address bugs in the filesystem.  These things
> are not unheard of...
>    

There was a spike in data recovery business here after people started 
migrating to ext4.  New filesystems are no fun to roll out; some bugs 
will only get shaken out when brave early adopters deploy them.

And there's even more radical changes in btrfs, since it wasn't starting 
with a fairly robust filesystem as a base.  And putting my tin foil hat 
on, I don't feel real happy about assuming *the* solution for this issue 
in PostgreSQL is the possibility of a filesystem coming one day when 
that work is being steered by engineers who work at Oracle.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us