From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q0RB2RCq163898 for ; Fri, 27 Jan 2012 05:02:28 -0600 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.8]) by cuda.sgi.com with ESMTP id sryH9xsAkZR8mUsD for ; Fri, 27 Jan 2012 03:02:25 -0800 (PST) Message-ID: <4F22843E.4050804@open-e.com> Date: Fri, 27 Jan 2012 12:02:22 +0100 From: =?UTF-8?B?xYF1a2FzeiBPbGXFmw==?= MIME-Version: 1.0 Subject: reserved blocks pool default size List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0862800732055693483==" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com This is a multi-part message in MIME format. --===============0862800732055693483== Content-Type: multipart/alternative; boundary="------------070408090905010307030302" This is a multi-part message in MIME format. --------------070408090905010307030302 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi, I updated kernel from 2.6.27 to 2.6.35 and noticed that free size on my xfs volume changed. Before update there was 7MB free space, now there is none. After some investigation I found that default size for reserved block pool changed [1]. On this volume I have one very big file which is exported as iSCSI disk via SCST and one small configuration file. The big file size will never change. Small file size can change only by some KB. With this assumptions, can I revert this change and set reserved blocks pool size to 1024 blocks? [1]. http://kerneltrap.org/mailarchive/git-commits-head/2010/3/6/28671 Reagards, -- Łukasz Oleś --------------070408090905010307030302 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi,

I updated kernel from 2.6.27 to 2.6.35 and noticed that free size on my xfs volume changed. Before update there was 7MB free space, now there is none.

After some investigation I found that default size for reserved block pool changed [1].
On this volume I have one very big file which is exported as iSCSI disk via SCST and one small configuration file. The big file size will never change. Small file size can change only by some KB.

With this assumptions, can I revert this change and set reserved blocks pool size to 1024 blocks?

[1]. http://kerneltrap.org/mailarchive/git-commits-head/2010/3/6/28671

Reagards,

--
Łukasz Oleś
--------------070408090905010307030302-- --===============0862800732055693483== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs --===============0862800732055693483==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q0RBeZ0q166743 for ; Fri, 27 Jan 2012 05:40:35 -0600 Received: from bombadil.infradead.org (173-166-109-252-newengland.hfc.comcastbusiness.net [173.166.109.252]) by cuda.sgi.com with ESMTP id 7qvuQP5AOXHpDa5I (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 27 Jan 2012 03:40:34 -0800 (PST) Date: Fri, 27 Jan 2012 06:40:32 -0500 From: Christoph Hellwig Subject: Re: reserved blocks pool default size Message-ID: <20120127114032.GA32236@infradead.org> References: <4F22843E.4050804@open-e.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4F22843E.4050804@open-e.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: ??ukasz Ole?? Cc: xfs@oss.sgi.com On Fri, Jan 27, 2012 at 12:02:22PM +0100, ??ukasz Ole?? wrote: > Hi, > > I updated kernel from 2.6.27 to 2.6.35 and noticed that free size on > my xfs volume changed. Before update there was 7MB free space, now > there is none. > > After some investigation I found that default size for reserved > block pool changed [1]. > On this volume I have one very big file which is exported as iSCSI > disk via SCST and one small configuration file. The big file size > will never change. Small file size can change only by some KB. > > With this assumptions, can I revert this change and set reserved > blocks pool size to 1024 blocks? If it worked fine for your workload before it should work fine with newer kernels, too. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q0TMKoY5150764 for ; Sun, 29 Jan 2012 16:20:50 -0600 Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id F1BPNRjAcrfOpvA5 for ; Sun, 29 Jan 2012 14:20:48 -0800 (PST) Date: Mon, 30 Jan 2012 09:20:47 +1100 From: Dave Chinner Subject: Re: reserved blocks pool default size Message-ID: <20120129222046.GG15102@dastard> References: <4F22843E.4050804@open-e.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4F22843E.4050804@open-e.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: =?utf-8?B?xYF1a2FzeiBPbGXFmw==?= Cc: xfs@oss.sgi.com T24gRnJpLCBKYW4gMjcsIDIwMTIgYXQgMTI6MDI6MjJQTSArMDEwMCwgxYF1a2FzeiBPbGXFmyB3 cm90ZToKPiBIaSwKPiAKPiBJIHVwZGF0ZWQga2VybmVsIGZyb20gMi42LjI3IHRvIDIuNi4zNSBh bmQgbm90aWNlZCB0aGF0IGZyZWUgc2l6ZSBvbgo+IG15IHhmcyB2b2x1bWUgY2hhbmdlZC4gQmVm b3JlIHVwZGF0ZSB0aGVyZSB3YXMgN01CIGZyZWUgc3BhY2UsIG5vdwo+IHRoZXJlIGlzIG5vbmUu Cj4gCj4gQWZ0ZXIgc29tZSBpbnZlc3RpZ2F0aW9uIEkgZm91bmQgdGhhdCBkZWZhdWx0IHNpemUg Zm9yIHJlc2VydmVkCj4gYmxvY2sgcG9vbCBjaGFuZ2VkIFsxXS4KPiBPbiB0aGlzIHZvbHVtZSBJ IGhhdmUgb25lIHZlcnkgYmlnIGZpbGUgd2hpY2ggaXMgZXhwb3J0ZWQgYXMgaVNDU0kKPiBkaXNr IHZpYSBTQ1NUIGFuZCBvbmUgc21hbGwgY29uZmlndXJhdGlvbiBmaWxlLiBUaGUgYmlnIGZpbGUg c2l6ZQo+IHdpbGwgbmV2ZXIgY2hhbmdlLiBTbWFsbCBmaWxlIHNpemUgY2FuIGNoYW5nZSBvbmx5 IGJ5IHNvbWUgS0IuCj4gCj4gV2l0aCB0aGlzIGFzc3VtcHRpb25zLCBjYW4gSSByZXZlcnQgdGhp cyBjaGFuZ2UgYW5kIHNldCByZXNlcnZlZAo+IGJsb2NrcyBwb29sIHNpemUgdG8gMTAyNCBibG9j a3M/Cgp4ZnNfaW8gLWMgInJlc2Jsa3MgMTAyNCIgPG1udHB0L29uZS12ZXJ5LWJpZy1maWxlPgoK YWZ0ZXIgdGhlIGZpbGVzeXN0ZW0gaXMgbW91bnRlZCB3aWxsIHNldCB0aGUgcmVzZXJ2ZSBibG9j ayBwb29sIGJhY2sKdG8gdGhlIDEwMjQgYmxvY2tzIHlvdSBoYWQgYmVmb3JlLgoKQ2hlZXJzLAoK RGF2ZS4KLS0gCkRhdmUgQ2hpbm5lcgpkYXZpZEBmcm9tb3JiaXQuY29tCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwp4ZnMgbWFpbGluZyBsaXN0Cnhmc0Bv c3Muc2dpLmNvbQpodHRwOi8vb3NzLnNnaS5jb20vbWFpbG1hbi9saXN0aW5mby94ZnMK