From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miles Fidelman Subject: Re: looking for good reference on storage configuration Date: Thu, 5 Nov 2015 12:59:13 -0500 Message-ID: <563B98F1.7020801@meetinghouse.net> References: <56277E47.9070003@meetinghouse.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Ladislav Mate Cc: "linux-raid@vger.kernel.org" List-Id: linux-raid.ids Thanks Ladislav - that gives me a starting point! Best, Miles On 11/5/15 12:44 PM, Ladislav Mate wrote: > On Wed, Oct 21, 2015 at 2:00 PM, Miles Fidelman > wrote: >> Hi Folks, >> >> Perhaps someone here might be able to point me at a reference or two= on >> alternatives and best practices for configuring storage for a server= - using >> a mix of SSDs and conventional drives. >> >> I'm in the process of upgrading a small cluster of 4 machines - each >> containing RAID arrays, with DRBD across clusters to support failove= r. Easy >> enough with a uniform collection of HDDs. But I can't get my head a= round >> how to add SSDs into the mix - what with the mismatch in access spee= ds and >> all, it would seem like one needs a more complex configuration with = a level >> of caching between the faster and slower media. >> >> Seems like someone would have written a book, or tutorial, or case s= tudy, or >> conference presentation - but damned if I can find anything. Any po= inters, >> or guidance, would be much appreciated. >> >> Thanks, >> >> Miles Fidelman >> >> -- >> In theory, there is no difference between theory and practice. >> In practice, there is. .... Yogi Berra >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid= " in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > Hi Miles, > might me long shot, but can take a look on LVM caching.. > Good description how to setup it is here : > http://blog-vpodzime.rhcloud.com/?p=3D45 > Working for me for months now.... without DRBD. > HTH, > > -- > Ladislav M=C3=A1te > -- > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid"= in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --=20 In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html