From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Johnson Subject: Re: Best practice for large storage? Date: Thu, 14 Feb 2013 09:48:12 -0800 Message-ID: <511D235C.6070409@aeoncomputing.com> References: <9702021.20.1360863570996.JavaMail.root@zimbra> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <9702021.20.1360863570996.JavaMail.root@zimbra> Sender: linux-raid-owner@vger.kernel.org To: Roy Sigurd Karlsbakk Cc: Linux RAID List-Id: linux-raid.ids Stable enough where it is being used at Lawrence Livermore Nat'l Labs o= n=20 a 55PB Lustre resource. I've been using it on a pre-release Lustre 2.4 and I have not had any=20 issues. On 2/14/13 9:39 AM, Roy Sigurd Karlsbakk wrote: > I don't feel like using the fuse version, but is zfsonlinux really st= able yet? > > ----- Opprinnelig melding ----- >> Roy, >> >> Why not use ZFS on Linux? (http://www.zfsonlinux.org) >> >> ZFS on Linux is being merged into the upcoming Lustre 2.4 parallel >> filesystem release. >> >> --Jeff >> >> On 2/14/13 9:28 AM, Roy Sigurd Karlsbakk wrote: >>> Hi all >>> >>> It seems we may need some storage for video soon. This is a 20k >>> studen college in Norway, with rather a few on media related >>> studies. Since these students produce rather large amounts of raw >>> material, typically to be stored during the semester, we may need >>> some 50-100TiB, perhaps more. I have setup systems with these >>> amounts of storage earlier on ZFS, but may be using Linux MD for >>> this project. I'm aware of the lack of checksumming, snapshots etc >>> with Linux, but may be using it because of more Linux knowledge >>> amongst the sysadmins here. In such a setup, I guess nearline SAS >>> drives on a SAS expander will be used, and with the amount of >>> storage needed, I won't be using a single RAID-6 (too insecure) or >>> RAID-10 (too expensive) for the lot. In ZFS-land I used smallish >>> VDEVs (~10 drives each) in a large pool. >>> >>> - Would using LVM on top of RAID-6 give me something similar? >>> - If so, should I stripe the RAID sets, and again, if striping >>> them, will it be as easy to add new RAID sets as we run out of >>> space? >>> >>> Thanks, and best regards >>> >>> roy >>> -- >>> Roy Sigurd Karlsbakk >>> (+47) 98013356 >>> roy@karlsbakk.net >>> http://blogg.karlsbakk.net/ >>> GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt >>> -- >>> I all pedagogikk er det essensielt at pensum presenteres >>> intelligibelt. Det er et element=C3=A6rt imperativ for alle pedagog= er =C3=A5 >>> unng=C3=A5 eksessiv anvendelse av idiomer med xenotyp etymologi. I = de >>> fleste tilfeller eksisterer adekvate og relevante synonymer p=C3=A5 >>> norsk. >>> -- >>> 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 >> >> -- >> ------------------------------ >> Jeff Johnson >> Co-Founder >> Aeon Computing >> >> jeff.johnson@aeoncomputing.com >> www.aeoncomputing.com >> t: 858-412-3810 x101 f: 858-412-3845 >> m: 619-204-9061 >> >> /* New Address */ >> 4170 Morena Boulevard, Suite D - San Diego, CA 92117 --=20 ------------------------------ Jeff Johnson Co-Founder Aeon Computing jeff.johnson@aeoncomputing.com www.aeoncomputing.com t: 858-412-3810 x101 f: 858-412-3845 m: 619-204-9061 /* New Address */ 4170 Morena Boulevard, Suite D - San Diego, CA 92117 -- 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