From: Michael Monnerie <michael.monnerie@is.it-management.at>
To: pgsql-admin@postgresql.org
Subject: Re: postgresql and xfs filesystrem
Date: Mon, 26 Jan 2009 22:27:27 +0100
Message-ID: <200901262227.31752@zmi.at> (raw)
In-Reply-To: <eb90f15e0901260801v6c5e1044j4c72da2f0de423a1@mail.gmail.com>
References: <eb90f15e0901251047k6b8bacfm9fdf0d9e4aa9155a@mail.gmail.com>
<3786f7bb0901252334oe0f1f90n3e1ea0a539949733@mail.gmail.com>
<eb90f15e0901260801v6c5e1044j4c72da2f0de423a1@mail.gmail.com>
On Montag 26 Januar 2009 Ezra Taylor wrote:
> What about XFS performance on databases larger than 1 TB. We
> are successful running postgres on zfs with x4500 but I'm interested
> using commodity hardware.
See http://en.wikipedia.org/wiki/Xfs#Allocation_groups
XFS was designed for big iron, where "big iron" from that time is
commodity servers of today (4+ cores, 8GB+ RAM, RAID with lots of fast
disks). During mkfs, you can decide how many allocation groups you want,
and by the size of your partition, you decide how big a single AG is.
And if your database spans lots of AGs, high parallelism can take place
if it's well done.
mfg zmi
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To: pgsql-admin@postgresql.org
Cc: michael.monnerie@is.it-management.at
Subject: Re: postgresql and xfs filesystrem
In-Reply-To: <200901262227.31752@zmi.at>
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