From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sandro Dentella Subject: Re: New RAID array syncs very slow Date: Wed, 24 Mar 2004 09:18:33 +0100 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20040324081832.GA14512@bluff> References: <40602BE7.8080705@oddpost.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids > hdparm -Tt /dev/hde > > too. You ought to get at least 45MB/sec on a modern IDE drive. On my pc I get: /dev/hda: Timing buffer-cache reads: 128 MB in 1.73 seconds = 73.99 MB/sec Timing buffered disk reads: 64 MB in 2.98 seconds = 21.48 MB/sec On my laptop I get /dev/hda: Timing buffer-cache reads: 596 MB in 2.01 seconds = 296.52 MB/sec Timing buffered disk reads: 54 MB in 3.05 seconds = 17.70 MB/sec On other raid server I have on production I get /dev/hda: Timing buffer-cache reads: 128 MB in 0.24 seconds =533.33 MB/sec Timing buffered disk reads: 64 MB in 1.29 seconds = 49.61 MB/sec Which "line" should be "at least 45MB/sec"? I read the man page for -tT opt but I know too little of how it works to really understand it. sandro *:-) -- Sandro Dentella *:-) e-mail: sandro.dentella@tin.it http://www.tksql.org TkSQL Home page - My GPL work