From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx14.extmail.prod.ext.phx2.redhat.com [10.5.110.19]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id qAB8N5fa002023 for ; Sun, 11 Nov 2012 03:23:05 -0500 Received: from mail-vc0-f174.google.com (mail-vc0-f174.google.com [209.85.220.174]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id qAB8N3MZ005289 for ; Sun, 11 Nov 2012 03:23:03 -0500 Received: by mail-vc0-f174.google.com with SMTP id fk26so6204957vcb.33 for ; Sun, 11 Nov 2012 00:23:02 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: From: Vitaly Yakovenko Date: Sun, 11 Nov 2012 10:22:42 +0200 Message-ID: Content-Type: multipart/alternative; boundary=047d7b41bf32b9e42004ce33e4de Subject: [linux-lvm] strange usage stats for thin LV Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: To: linux-lvm@redhat.com --047d7b41bf32b9e42004ce33e4de Content-Type: text/plain; charset=ISO-8859-1 Hi, I have the problem with fstrim too. some details: uname -a Linux test.local 2.6.32-279.14.1.el6.x86_64 #1 SMP Tue Nov 6 23:43:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux mount /dev/mapper/VolGroup00-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/md0 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) /dev/mapper/VolGroup00-lv_test1 on /mnt/test1 type ext4 (rw) /dev/mapper/VolGroup00-lv_test2 on /mnt/test2 type ext4 (rw) /dev/mapper/VolGroup00-lv_test5 on /mnt/test5 type xfs (rw) df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-lv_root 20G 2.3G 17G 13% / tmpfs 1.6G 0 1.6G 0% /dev/shm /dev/md0 99M 27M 67M 29% /boot /dev/mapper/VolGroup00-lv_test1 40G 2.6G 35G 7% /mnt/test1 /dev/mapper/VolGroup00-lv_test2 4.0G 1.2G 2.6G 32% /mnt/test2 /dev/mapper/VolGroup00-lv_test5 3.0G 725M 2.3G 24% /mnt/test5 lvs -a -o+metadata_percent LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert Meta% lv_native VolGroup00 -wi-a--- 5.00g lv_root VolGroup00 -wi-ao-- 20.00g lv_swap VolGroup00 -wi-ao-- 4.00g lv_test1 VolGroup00 Vwi-aotz 40.00g thin_pool 27.73 lv_test2 VolGroup00 Vwi-aotz 4.00g thin_pool 98.61 lv_test5 VolGroup00 Vwi-aotz 3.00g thin_pool 45.40 thin_pool VolGroup00 twi-a-tz 100.00g 16.40 8.47 [thin_pool_tdata] VolGroup00 Twi-aot- 100.00g [thin_pool_tmeta] VolGroup00 ewi-aot- 100.00m This test server (CentOS 6.3 - not install from scratch). I was updated this server from 6.2 version: last | tail -3 reboot system boot 2.6.32-220.el6.x Mon Jan 23 16:03 - 16:04 (00:01) wtmp begins Mon Jan 23 16:03:26 2012 I test only ext4 fs partitions. When I used fstrim I had next error: fstrim /mnt/test1 fstrim: /mnt/test1: FITRIM ioctl failed: Operation not supported I want retrieve free space from the ext4 fs to the total free space of thin_pool after delete files on the ext4 fs (lv_test1).I will have more free space for another thin LV. Is it possible to get it? Thanks in advance. -- Best regards, Vitaly Yakovenko | --047d7b41bf32b9e42004ce33e4de Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi,
=

I have the problem with fstrim too.

some details:

uname -a
Linux test.local 2.6.32-279.14.= 1.el6.x86_64 #1 SMP Tue Nov 6 23:43:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Li= nux


mount
/dev/mapper/VolGrou= p00-lv_root on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpt= s (rw,gid=3D5,mode=3D620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/md0 on /boot type ext= 4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
/dev/mapper/VolGroup00-lv_test1 on /mnt/test1 type ext4 (rw)
/dev/mapper/VolGroup00-lv_test2 on /mnt/test2 type ext4 (rw)
/dev/mapper/VolGroup00-lv_test5 on /mnt/test5 type xfs (rw)


df -h
Filesystem =A0 =A0 =A0= =A0 =A0 =A0Size =A0Used Avail Use% Mounted on
/dev/mapper/VolGroup00-lv_root
=A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A020G =A02.3G =A0 17G =A013% /
tmpfs =A0 =A0 =A0= =A0 =A0 =A0 =A0 =A0 1.6G =A0 =A0 0 =A01.6G =A0 0% /dev/shm
/dev/= md0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 99M =A0 27M =A0 67M =A029% /boot
/dev/mapper/VolGroup00-lv_test1
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A040G =A02.6G =A0 35G =A0 7% /mnt/test1
/dev/mapper/= VolGroup00-lv_test2
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 4= .0G =A01.2G =A02.6G =A032% /mnt/test2
/dev/mapper/VolGroup00-lv_t= est5
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 3.0G =A0725M =A02.3G =A024= % /mnt/test5


lvs -a -o+m= etadata_percent
=A0 LV =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0VG =A0 =A0 = =A0 =A0 Attr =A0 =A0 LSize =A0 Pool =A0 =A0 =A0Origin Data% =A0Move Log Cop= y% =A0Convert Meta%=A0
=A0 lv_native =A0 =A0 =A0 =A0 VolGroup00 -wi-a--- =A0 5.00g =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 lv_root =A0 =A0 =A0 =A0 =A0 VolGr= oup00 -wi-ao-- =A020.00g =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 lv_swap =A0 =A0 =A0 =A0 =A0 VolGroup00 -wi-ao-- =A0 4.00g =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 lv_test1 =A0 =A0 =A0 =A0 =A0VolGr= oup00 Vwi-aotz =A040.00g thin_pool =A0 =A0 =A0 =A0 27.73 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 lv_test2 =A0 =A0 =A0 =A0 =A0VolGroup00 Vwi-aotz =A0 4.00g thin_poo= l =A0 =A0 =A0 =A0 98.61 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0=A0
=A0 lv_test5 =A0 =A0 =A0 =A0 =A0VolGroup00 Vwi-aotz = =A0 3.00g thin_pool =A0 =A0 =A0 =A0 45.40 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 thin_pool =A0 =A0 =A0 =A0 VolGroup00 twi-a-tz 100.00g =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 16.40 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 8.47
=A0 [thin_pool_tdata] VolGroup00 Twi-aot- 100.00g = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0
=A0 [thin_pool_tmeta] VolGroup00 ewi-aot- 100.00m

=

Thi= s test server (CentOS 6.3 - not install from scratch). I was updated this s= erver from 6.2 version:

last | tail -3
reboot =A0 system boot =A02.6.32-220.= el6.x Mon Jan 23 16:03 - 16:04 =A0(00:01) =A0 =A0
wtmp begins Mon= Jan 23 16:03:26 2012


I test only e= xt4 fs partitions.
When I used fstrim I had next error:

fst= rim /mnt/test1
fstrim: /mnt/test1: FITRIM ioctl failed: Operation= not supported

I want retrieve free space fr= om the ext4 fs to the total free space of thin_pool after delete files on t= he ext4 fs=A0=A0(lv_test1).I will have more free space for another=A0thin L= V.
Is it possible to get it?

Thanks in advance.

--=A0
Best regards,
Vitaly Yakovenko=A0|

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