Re: setting up raid10 with more than 4 drives - Mailing list pgsql-performance

From Stephen Frost
Subject Re: setting up raid10 with more than 4 drives
Date
Msg-id 20070530104236.GW7531@tamriel.snowman.net
Whole thread Raw
In response to Re: setting up raid10 with more than 4 drives  ("Peter Childs" <peterachilds@gmail.com>)
List pgsql-performance
* Peter Childs (peterachilds@gmail.com) wrote:
> Good point, also if you had Raid 1 with 3 drives with some bit errors at
> least you can take a vote on whats right. Where as if you only have 2 and
> they disagree how do you know which is right other than pick one and hope...
> But whatever it will be slower to keep in sync on a heavy write system.

I'm not sure, but I don't think most RAID1 systems do reads against all
drives and compare the results before returning it to the caller...  I'd
be curious if I'm wrong.

    Thanks,

        Stephen

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