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Re: Postgres over Linux NBD or NFS

From: Andrew Rawnsley <ronz(at)ravensfield(dot)com>
To: Andrew Hammond <ahammond(at)ca(dot)afilias(dot)info>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Postgres over Linux NBD or NFS
Date: 2004-06-22 02:46:41
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Lists: pgsql-performance
On Jun 21, 2004, at 2:02 PM, Andrew Hammond wrote:

> Hash: SHA1
> We're looking for an alternative to fiber-channel disk arrays for mass
> storage. One of the ideas that we're exploring would involve having the
> cluster on an NFS mounted filesystem. Another technology we're looking
> at is the Linux NBD (Network Block Device).

No idea about NBDs, but its generally accepted that running over NFS 
would significantly
decrease reliability and performance, i.e. it would be a Bad Move (tm). 
Not sure what you
think to gain. I sure wouldn't trust NFS with a production database.

What exactly are you trying to gain, avoid, or do?

> Has anyone had any experience with running postgres over either of 
> these
> technologies? What issues do we need to know about / pay attention to?
> - --
> Andrew Hammond    416-673-4138    ahammond(at)ca(dot)afilias(dot)info
> Database Administrator, Afilias Canada Corp.
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Andrew Rawnsley
The Ravensfield Digital Resource Group, Ltd.
(740) 587-0114

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Subject: Re: Postgres over Linux NBD or NFS
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