Re: DATA Location

From: Jasen Betts <jasen(at)xnet(dot)co(dot)nz>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: DATA Location
Date: 2010-12-29 08:57:49
Message-ID: ifet6d$r5j$1@reversiblemaps.ath.cx
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On 2010-12-28, Ozz Nixon <ozznixon(at)gmail(dot)com> wrote:
> Is it possible (and how) to implement a data path on another partition (linux) for an existing system? And then if I do not gain anything, merging it to the production /data path?

tablespaces

> Scenario of what I want to achieve (/mnt/data is already running)
>
> /mnt/data resides on an NFS share
> Contains over 2 Billion web sites crawled (yeah another search-engine site)

using postgres on nfs is not recommended,

> want to add:
>
> /opt/data resides on internal drive
> Will contain keyword hash system

local is good.

> Then if I find this does not improve anything - or runs tight
>(running on IBM Blade center with 76gb internals - so I may be
>limited), that I can simple shutdown postgres, scp /opt/data/folder/
>to the NFS - bring up postgres - fix any conf file, and everything is
>on the multi-terabyte array?

or leave postgres running and just copy the table using "select * into"
or similar.

it's possibly better to use iSCSI instead of NFS, it's not like you can share the data
directory.

--
⚂⚃ 100% natural

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