From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: Re: ceph, slow (cheap) and fast (expensive) storage? Date: Tue, 08 Jun 2010 14:04:07 +0200 Message-ID: <4C0E31B7.4010606@wpkg.org> References: <4C0E1BAC.8070306@wpkg.org> <1275994413.1933.1.camel@wido-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.virtall.com ([178.63.195.102]:55152 "EHLO mail.virtall.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754862Ab0FHMEM (ORCPT ); Tue, 8 Jun 2010 08:04:12 -0400 In-Reply-To: <1275994413.1933.1.camel@wido-desktop> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: wido@pcextreme.nl Cc: ceph-devel@vger.kernel.org Am 08.06.2010 12:53, Wido den Hollander wrote: > Hi, > > I'm not aware of any of those features in Ceph and i don't think that it > will be possible in the near future. > > But while thinking about it, is ZFS an option for you? You could then > use a lot of SATA disks and add some SAS disks for your caching. ZFS > will then place the most used blocks on the SAS disks. Not sure, perhaps not. I was thinking of something in the line of: http://en.wikipedia.org/wiki/Hierarchical_storage_management -- Tomasz Chmielewski http://wpkg.org