3 Nov
2020
3 Nov
'20
5:44 p.m.
Thanks. Let me try it and I'll report back.
-----Original Message-----
From: Adam Tygart <mozes(a)ksu.edu>
Sent: Tuesday, November 3, 2020 12:42 PM
To: Vikas Rana <vrana(a)vtiersys.com>
Cc: ceph-users <ceph-users(a)ceph.io>
Subject: Re: [ceph-users] Re: Inconsistent Space Usage reporting
I'm not sure exactly what you're doing with your volumes.
It looks like fcp might be size 3. nfs is size 1, possibly with an 200TB rbd volume inside
nbd mounted into another box. If so, it is likely you can reclaim space from deleted files
with fstrim, if your filesystem supports it.
--
Adam
On Tue, Nov 3, 2020 at 11:00 AM Vikas Rana <vrana(a)vtiersys.com> wrote:
Any help or direction in this below case is highly appreciated.
Thanks,
-Vikas
-----Original Message-----
From: Vikas Rana <vrana(a)vtiersys.com>
Sent: Monday, November 2, 2020 12:53 PM
To: ceph-users(a)ceph.io
Subject: [ceph-users] Inconsistent Space Usage reporting
Hi Friends,
We have some inconsistent storage space usage reporting. We used only
46TB with single copy but the space used on the pool is close to 128TB.
Any idea where's the extra space is utilized and how to reclaim it?
Ceph Version : 12.2.11 with XFS OSDs. We are planning to upgrade soon.
# ceph df detail
GLOBAL:
SIZE AVAIL RAW USED %RAW USED OBJECTS
363TiB 131TiB 231TiB 63.83 43.80M
POOLS:
NAME ID QUOTA OBJECTS QUOTA BYTES USED %USED
MAX AVAIL OBJECTS DIRTY READ WRITE RAW USED
fcp 15 N/A N/A 23.6TiB 42.69
31.7TiB 3053801 3.05M 6.10GiB 12.6GiB 47.3TiB
nfs 16 N/A N/A 128TiB 66.91
63.4TiB 33916181 33.92M 3.93GiB 4.73GiB 128TiB
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/nbd0 200T 46T 155T 23% /vol/dir_research
#ceph osd pool get nfs all
size: 1
min_size: 1
crash_replay_interval: 0
pg_num: 128
pgp_num: 128
crush_rule: replicated_ruleset
hashpspool: true
nodelete: false
nopgchange: false
nosizechange: false
write_fadvise_dontneed: false
noscrub: false
nodeep-scrub: false
use_gmt_hitset: 1
auid: 0
fast_read: 0
Appreciate your help.
Thanks,
-Vikas
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