Received: from localhost (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id D4FB363249C for ; Mon, 26 Jan 2009 17:27:46 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 26368-01 for ; Mon, 26 Jan 2009 17:27:35 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mailsrv1.zmi.at (mailsrv1.zmi.at [212.69.162.198]) by mail.postgresql.org (Postfix) with ESMTP id 553316323CA for ; Mon, 26 Jan 2009 17:27:34 -0400 (AST) Received: from mailsrv2.i.zmi.at (h081217054243.dyn.cm.kabsi.at [81.217.54.243]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv1.zmi.at (Postfix) with ESMTP id 8798F2D43 for ; Mon, 26 Jan 2009 22:27:31 +0100 (CET) Received: from saturn.localnet (saturn.i.zmi.at [10.0.0.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv2.i.zmi.at (Postfix) with ESMTPSA id 152E040016B for ; Mon, 26 Jan 2009 22:27:32 +0100 (CET) From: Michael Monnerie Organization: it-management http://it-management.at To: pgsql-admin@postgresql.org Subject: Re: postgresql and xfs filesystrem Date: Mon, 26 Jan 2009 22:27:27 +0100 User-Agent: KMail/1.10.3 (Linux/2.6.27.10-ZMI; KDE/4.1.3; x86_64; ; ) References: <3786f7bb0901252334oe0f1f90n3e1ea0a539949733@mail.gmail.com> In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3028321.yte7ced3Ec"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200901262227.31752@zmi.at> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200901/145 X-Sequence-Number: 31192 --nextPart3028321.yte7ced3Ec Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Montag 26 Januar 2009 Ezra Taylor wrote: > What about XFS performance on databases larger than 1 TB. =A0We > are successful running postgres on zfs with x4500 but I'm interested > =A0using commodity hardware. See http://en.wikipedia.org/wiki/Xfs#Allocation_groups XFS was designed for big iron, where "big iron" from that time is=20 commodity servers of today (4+ cores, 8GB+ RAM, RAID with lots of fast=20 disks). During mkfs, you can decide how many allocation groups you want,=20 and by the size of your partition, you decide how big a single AG is.=20 And if your database spans lots of AGs, high parallelism can take place=20 if it's well done. mfg zmi =2D-=20 // Michael Monnerie, Ing.BSc ----- http://it-management.at // Tel: 0660 / 415 65 31 .network.your.ideas. // PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import" // Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4 // Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4 --nextPart3028321.yte7ced3Ec Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEABECAAYFAkl+KsMACgkQzhSR9xwSCbTsBACfdUmHzaIC65LUGSrRolw41WP/ GvsAnREtCaZOiHkt946G9F+JficGI7k3 =xcYV -----END PGP SIGNATURE----- --nextPart3028321.yte7ced3Ec--