From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ignatich Subject: reiser4: reserved disk space Date: Wed, 28 Mar 2007 16:29:14 +0400 Message-ID: <460A5F9A.6070902@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:subject:content-type:content-transfer-encoding; b=bHWY7HMfMCmTBJCRd5wppIpNBYDl1WCWxA7XbUXdqJJSBqb+RuATV3M6LCJWqT//8PJAbY9cS7PEgarb0XzO2D3kkG+I0Ym4JwFuPAL5Cd+1c+d9hikWb46iDHYq4/Z/EJZoD+Xo3eRQM4pIR9rJFIZh9N6Rp2dqbFhQS1bPbz4= List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: reiserfs-list@namesys.com Reiser4 reserves roughly 5% of partition size for it's internal use. This space can be tens of gigabytes for modern hard disks, and unlike ext2 reserve cannot be used even by root in any way. I changed reserved block count in super.c to be 1% instead of 5%, formatted a test drive in reiser4 and stress tested it by copying many small or few huge files to almost full disk. Everything was working fine. It there a reason for this reserve to be so big?