From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Masover Subject: Re: create very large file system Date: Thu, 20 Jul 2006 11:46:31 -0500 Message-ID: <44BFB367.6080503@slaphack.com> References: <200607191657.38644.zam@namesys.com> <20060720062646.GA6174@schatzie.adilger.int> <20060720071118.GA6553@HAL_5000D.tc.ph.cox.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: <20060720071118.GA6553@HAL_5000D.tc.ph.cox.net> List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Clay Barnes Cc: Alexander Zarochentsev , reiserfs-list@namesys.com, Mark F Clay Barnes wrote: > On 02:26 Thu 20 Jul , Andreas Dilger wrote: >> On Jul 19, 2006 16:57 +0400, Alexander Zarochentsev wrote: >>> On Wednesday 19 July 2006 16:10, Mark F wrote: >>>> I've tried to create a large 5TB file system using both reiserfs and >>>> ext3 and both have failed. >>> you might need to convert the partition table to GPT format for >>> supporting 2TB+ partitions. it can be done by the gnu parted tool. >> Or, for that matter, don't use a partition table at all, since this >> adds an unhelpful offset to all the filesystem structures and can >> hurt performance on RAID where the filesystem is trying to align IO >> to RAID stripe boundaries. > Well, damn. Too late for that to help me. I've a 700GB that's... > rather too full to put on DVDs or my other drives to fix that. There > isn't some "safe" way to remove a partition table from a SW RAID array, > is there? Define "safe". You could probably do it non-destructively with dd, if you set the block size properly. That doesn't make it safe, though, you're basically screwed if you lose power. And even once you do that, I don't think the Reiser4 tools would let you resize. Anyway, I haven't tried this myself, as my SW RAID does actually have multiple partitions, for good reason.