From owner-freebsd-questions Thu Mar 20 4:36:51 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6ABD037B401 for ; Thu, 20 Mar 2003 04:36:50 -0800 (PST) Received: from manhattan.unsavoury.net (manhattan.unsavoury.net [62.250.7.49]) by mx1.FreeBSD.org (Postfix) with ESMTP id 59E6A43FAF for ; Thu, 20 Mar 2003 04:36:49 -0800 (PST) (envelope-from maarten@netraam.omroep.nl) Received: from netraam.omroep.nl (netraam.omroep.nl [145.58.13.80]) by manhattan.unsavoury.net (Postfix MTA on FreeBSD) with ESMTP id 602F119391; Thu, 20 Mar 2003 13:36:48 +0100 (CET) Received: by netraam.omroep.nl (Postfix, from userid 1000) id E8D5A3C; Thu, 20 Mar 2003 13:36:47 +0100 (CET) From: Maarten de Vries Organization: unsavoury.net To: Alexander Haderer , Maarten de Vries , Dirk-Willem van Gulik Subject: Re: Three Terabyte Date: Thu, 20 Mar 2003 13:36:47 +0100 User-Agent: KMail/1.5 Cc: freebsd-questions@FreeBSD.ORG References: <20030320111436.N74106-100000@foem.leiden.webweaving.org> <5.2.0.9.1.20030320125711.019eb9c8@postamt1.charite.de> In-Reply-To: <5.2.0.9.1.20030320125711.019eb9c8@postamt1.charite.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200303201336.47560.maarten@netraam.nl> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thursday 20 March 2003 13:13, Alexander Haderer wrote: > a. > Filling 3TB with 1 Mbyte/s lasts more than 800 hours or 33 days. > > b. > Using ssh + dump/cpio/tar needs CPU power for encryption, especially > when multiple clients safe their data at the same time. We're already using a system built on Rsync and Dirvish, which is very quick. Disk I/O is not likely to be the bottleneck. > c. > When using FreeBSD 4.X a fsck after a hard reboot will block the > server. fsck'ing a full 3TB filesystem may need a long time. Its better > to use several smaller file systems. I guess I'd opt for FreeBSD 5. > d. > Wrong parameters for newfs may slowdown large filesystems and waste > lots of space. Before using large filesystems read the manpage of > newfs, especially the topics about options -b -f -i Thanks for that tip. -- maarten@netraam.nl - http://unsavoury.net/ natural selection has come home To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message