Re: Shared disk storage - Mailing list pgsql-general

From Jim C. Nasby
Subject Re: Shared disk storage
Date
Msg-id 20050907054410.GE60481@pervasive.com
Whole thread Raw
In response to Re: Shared disk storage  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
On Wed, Sep 07, 2005 at 12:19:19AM -0400, Tom Lane wrote:
> Having said that, I'm not sure I believe in filesystem locks as doing
> much to improve security in the case of multiple hosts attached to a SAN
> filesystem.  Does the locking work at all across hosts, and if it does,
> does the lock get released reasonably promptly if the owning host
> crashes?  This seems like a there's-no-free-lunch situation.

The way I see it, it will work fine for some setups, and not work for
others. That means it won't help everyone, but it will help some. ISTM
like it would be pretty easy to do, so why not help those who could make
use of it?
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

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