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 09:33:45 -0800 Message-ID: <511D1FF9.1020502@aeoncomputing.com> References: <24358517.18.1360862926919.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: <24358517.18.1360862926919.JavaMail.root@zimbra> Sender: linux-raid-owner@vger.kernel.org To: Roy Sigurd Karlsbakk , Linux RAID List-Id: linux-raid.ids Roy, Why not use ZFS on Linux? (http://www.zfsonlinux.org) ZFS on Linux is being merged into the upcoming Lustre 2.4 parallel=20 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 stude= n 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 m= ore. 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 c= hecksumming, snapshots etc with Linux, but may be using it because of m= ore Linux knowledge amongst the sysadmins here. In such a setup, I gues= s nearline SAS drives on a SAS expander will be used, and with the amou= nt of storage needed, I won't be using a single RAID-6 (too insecure) o= r RAID-10 (too expensive) for the lot. In ZFS-land I used smallish VDEV= s (~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 intelligibel= t. Det er et element=C3=A6rt imperativ for alle pedagoger =C3=A5 unng=C3= =A5 eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste t= ilfeller 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 --=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