From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtpcmd0998.aruba.it ([62.149.156.98]:48450 "EHLO smtpcmd0998.aruba.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750801AbcEWNlc (ORCPT ); Mon, 23 May 2016 09:41:32 -0400 To: linux-btrfs@vger.kernel.org From: Marco Lorenzo Crociani Subject: btrfs filesystem usage - Wrong Unallocated indications - RAID10 Message-ID: <574306CC.3070906@prismatelecomtesting.com> Date: Mon, 23 May 2016 15:34:04 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi, as I wrote today in IRCI experienced an issue with 'btrfs filesystem usage'. I have a 4 partitions RAID10 btrfs filesystem almost full. 'btrfs filesystem usage' reports wrong "Unallocated" indications. Linux 4.5.3 btrfs-progs v4.5.3 # btrfs fi usage /data/ Overall: Device size: 13.93TiB Device allocated: 13.77TiB Device unallocated: 167.54GiB Device missing: 0.00B Used: 13.44TiB Free (estimated): 244.39GiB (min: 244.39GiB) Data ratio: 2.00 Metadata ratio: 2.00 Global reserve: 512.00MiB (used: 0.00B) Data,single: Size:8.00MiB, Used:0.00B /dev/sda4 8.00MiB Data,RAID10: Size:6.87TiB, Used:6.71TiB /dev/sda4 1.72TiB /dev/sdb3 1.72TiB /dev/sdc3 1.72TiB /dev/sdd3 1.72TiB Metadata,single: Size:8.00MiB, Used:0.00B /dev/sda4 8.00MiB Metadata,RAID10: Size:19.00GiB, Used:14.15GiB /dev/sda4 4.75GiB /dev/sdb3 4.75GiB /dev/sdc3 4.75GiB /dev/sdd3 4.75GiB System,single: Size:4.00MiB, Used:0.00B /dev/sda4 4.00MiB System,RAID10: Size:16.00MiB, Used:768.00KiB /dev/sda4 4.00MiB /dev/sdb3 4.00MiB /dev/sdc3 4.00MiB /dev/sdd3 4.00MiB Unallocated: /dev/sda4 1.76TiB /dev/sdb3 1.76TiB /dev/sdc3 1.76TiB /dev/sdd3 1.76TiB ---------------------------------------------------------------------------------- # btrfs fi show /data/ Label: 'data' uuid: df6639d5-3ef2-4ff6-a871-9ede440e2dae Total devices 4 FS bytes used 6.72TiB devid 1 size 3.48TiB used 3.44TiB path /dev/sda4 devid 2 size 3.48TiB used 3.44TiB path /dev/sdb3 devid 3 size 3.48TiB used 3.44TiB path /dev/sdc3 devid 4 size 3.48TiB used 3.44TiB path /dev/sdd3 ---------------------------------------------------------------------------------- # btrfs fi df /data/ Data, RAID10: total=6.87TiB, used=6.71TiB Data, single: total=8.00MiB, used=0.00B System, RAID10: total=16.00MiB, used=768.00KiB System, single: total=4.00MiB, used=0.00B Metadata, RAID10: total=19.00GiB, used=14.15GiB Metadata, single: total=8.00MiB, used=0.00B GlobalReserve, single: total=512.00MiB, used=0.00B ---------------------------------------------------------------------------------- # df -h /dev/sda4 7,0T 6,8T 245G 97% /data Regards, -- Marco Crociani Prisma Telecom Testing S.r.l. via Petrocchi, 4 20127 MILANO ITALY Phone: +39 02 26113507 Fax: +39 02 26113597 e-mail: marcoc@prismatelecomtesting.com web: http://www.prismatelecomtesting.com Questa email (e I suoi allegati) costituisce informazione riservata e confidenziale e può essere soggetto a legal privilege. Può essere utilizzata esclusivamente dai suoi destinatari legittimi. Se avete ricevuto questa email per errore, siete pregati di informarne immediatamente il mittente e quindi cancellarla. A meno che non siate stati a ciò espressamente autorizzati, la diffusione o la riproduzione di questa email o del suo contenuto non sono consentiti. Salvo che questa email sia espressamente qualificata come offerta o accettazione contrattuale, il mittente non intende con questa email dare vita ad un vincolo giuridico e questa email non può essere interpretata quale offerta o accettazione che possa dare vita ad un contratto. Qualsiasi opinione manifestata in questa email è un'opinione personale del mittente, salvo che il mittente dichiari espressamente che si tratti di un'opinione di Prisma Engineering. ******************************************************************************* This e-mail (including any attachments) is private and confidential, and may be privileged. It is for the exclusive use of the intended recipient(s). If you have received this email in error, please inform the sender immediately and then delete this email. Unless you have been given specific permission to do so, please do not distribute or copy this email or its contents. Unless the text of this email specifically states that it is a contractual offer or acceptance, the sender does not intend to create a legal relationship and this email shall not constitute an offer or acceptance which could give rise to a contract. Any views expressed in this communication are those of the individual sender, except where the sender specifically states them to be the views of Prisma Engineering.