From owner-freebsd-current@FreeBSD.ORG Sat Dec 15 16:19:24 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6227F16A417 for ; Sat, 15 Dec 2007 16:19:24 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id D253B13C465 for ; Sat, 15 Dec 2007 16:19:23 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1J3ZfH-00042h-5g for freebsd-current@freebsd.org; Sat, 15 Dec 2007 16:14:59 +0000 Received: from 78-0-75-218.adsl.net.t-com.hr ([78.0.75.218]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 15 Dec 2007 16:14:59 +0000 Received: from ivoras by 78-0-75-218.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 15 Dec 2007 16:14:59 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-current@freebsd.org From: Ivan Voras Date: Sat, 15 Dec 2007 17:12:54 +0100 Lines: 48 Message-ID: References: <47606C09.2070209@isc.org> <47609F0A.7010805@clearchain.com> <47609FE3.8040606@barafranca.com> <4760B444.1080604@clearchain.com> <06CAC7FC-DB58-441D-A6E0-76D1D8133393@tamu.edu> <86ir31xwlu.fsf@ds4.des.no> <476343B4.8080208@FreeBSD.org> <86tzmk54tt.fsf@ds4.des.no> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig45592461C08CDE7CD3665A24" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 78-0-75-218.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) In-Reply-To: <86tzmk54tt.fsf@ds4.des.no> X-Enigmail-Version: 0.95.5 Sender: news Subject: Re: ZFS melting under postgres... X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2007 16:19:24 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig45592461C08CDE7CD3665A24 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dag-Erling Sm=C3=B8rgrav wrote: > Ivan Voras writes: >> Maxim Sobolev wrote: >>> That's no longer true. You can't get more than 5-10MB/s from >>> seek-intensive RAID0 with two 15K drives, while 20-30MB/s is not a >>> problem for the comparable priced/sized SSD drive. >> Can you point me at a vendor with SSDs of such characteristics? >=20 > Kingston CF Elite, 20 / 25 MBps write / read > Kingston CF Ultimate, 40 / 45 MBps write / read >=20 > SanDisk Extreme III CF, 20 MBps > SanDisk Extreme IV CF, 45 MBps >=20 > Sony CF 300X, 45 MBps >=20 > These are just a few of those available from my regular supplier. These are all "normal" CompactFlash cards, for which the widely available size seems to be 16 GB max, right? I was thinking about something more like this: http://gizmodo.com/gadgets/peripherals/adatas-128gb-solid-state-drive-see= s-the-light-of-day-231693.php or this: http://www.mtron.net/English/Product/pc_msd1000.asp Did you (or anyone) deploy CF drives for production servers? --------------enig45592461C08CDE7CD3665A24 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHY/0GldnAQVacBcgRAlXjAJ9qUpn4QkNeG+GJpvssaG8fQhZXowCgmn6y 0ZF2lWBgaCoUWlhQ3aOQ4K8= =sAGu -----END PGP SIGNATURE----- --------------enig45592461C08CDE7CD3665A24--