From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nils-Henner Krueger Subject: syncing RAID1 with more than 10MB/sec Date: Wed, 30 Mar 2005 11:12:57 +0200 Message-ID: <424A6D99.6070501@netuse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Syncing a raid1 takes long time for large disks because of the 10MB/sec limit: Mar 30 10:58:31 imap1 kernel: raid1: raid set md2 not clean; reconstructing mirrors Mar 30 10:58:31 imap1 kernel: raid1: raid set md2 active with 2 out of 2 mirrors Mar 30 10:58:31 imap1 kernel: md: syncing RAID array md2 Mar 30 10:58:31 imap1 kernel: md: minimum _guaranteed_ reconstruction speed: 100 KB/sec/disc. Mar 30 10:58:31 imap1 kernel: md: using maximum available idle IO bandwith (but not more than 10000 KB/sec) for reconstruction. Is it possible to raise this value (without recompiling)? I know about possible performance tradeoffs with other processes, I'm just generally interested. Thanks. nils-henner