From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Landman Subject: Re: [Rocks-Discuss]Huge 1.2TB partition Date: Fri, 24 Sep 2004 11:45:21 -0400 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <41544111.4080903@scalableinformatics.com> References: <1096019417.2726.61.camel@whirl.lab7.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from dsl093-000-201.det1.dsl.speakeasy.net ([66.93.0.201]:49566 "EHLO crunch.scalableinformatics.com") by vger.kernel.org with ESMTP id S268854AbUIXPph (ORCPT ); Fri, 24 Sep 2004 11:45:37 -0400 In-Reply-To: <1096019417.2726.61.camel@whirl.lab7.lan> List-Id: linux-scsi@vger.kernel.org To: stas@itam.nsc.ru Cc: Linux-scsi list , rocks_list Hi Stas: There is a bug in 2.4 kernels with SCSI that limits you to 1 TB or less. The folks at 3ware have a patch for it (it is fixing a signed int to be an unsigned int in sd.c). Without this patch, you are going to have trouble making a single large volume. You could create 2 volumes and LVM or MD them together. This would be hard to do with the number of disks you have as a RAID5. What is best is usually dictated by your use case. For large storage purposes, one volume might be better. Joe Stas Nikiforov wrote: >Hi, >I have RAID 5 6x250 SATA storage. >Is it a good idea to have one huge partition >or it is better to split it on smaller logical drives and then use LVM, >for example? > >In any way, what is a preferred filesystem for this storage? >I plan to use it as a mass storage for CFD results. > >Thanks in advance, >Stas. > > -- Joseph Landman, Ph.D Scalable Informatics LLC, email: landman@scalableinformatics.com web : http://scalableinformatics.com phone: +1 734 612 4615