[Gluster-users] df shows wrong mount size, after adding bricks to volume

[Sanju Rakonde]

Hi Petr,

what was the server version before upgrading to 7.2?

Can you please share the shared-brick-count values from brick volfiles from
all the nodes?
grep shared-brick-count /var/lib/glusterd/vols/<volume_name>/*

On Wed, May 27, 2020 at 2:31 PM Petr Certik <petr at certik.cz> wrote:

> Hi everyone,
>
> we've been running a replicated volume for a while, with three ~1 TB
> bricks. Recently we've added three more same-sized bricks, making it a
> 2 x 3 distributed replicated volume. However, even after rebalance,
> the `df` command on a client shows the correct used/size percentage,
> but wrong absolute sizes. The size still shows up as ~1 TB while in
> reality it should be around 2 TB, and both "used" and "available"
> reported sizes are about half of what they should be. The clients were
> an old version (5.5), but even after upgrade to 7.2 and remount, the
> reported sizes are still wrong. There are no heal entries. What can I
> do to fix this?
>
> OS: debian buster everywhere
> Server version: 7.3-1, opversion: 70200
> Client versions: 5.5-3, 7.6-1, opversions: 50400, 70200
>
>
> root at imagegluster1:~# gluster volume info gv0
> Volume Name: gv0
> Type: Distributed-Replicate
> Volume ID: 5505d350-9b61-4056-9054-de9dfb58eab7
> Status: Started
> Snapshot Count: 0
> Number of Bricks: 2 x 3 = 6
> Transport-type: tcp
> Bricks:
> Brick1: imagegluster1:/data/brick
> Brick2: imagegluster2:/data/brick
> Brick3: imagegluster3:/data/brick
> Brick4: imagegluster1:/data2/brick
> Brick5: imagegluster2:/data2/brick
> Brick6: imagegluster3:/data2/brick
> Options Reconfigured:
> features.cache-invalidation: on
> transport.address-family: inet
> storage.fips-mode-rchecksum: on
> nfs.disable: on
> performance.client-io-threads: off
>
>
> root at imagegluster1:~# df -h
> Filesystem      Size  Used Avail Use% Mounted on
> ...
> /dev/sdb1       894G  470G  425G  53% /data2
> /dev/sdc1       894G  469G  426G  53% /data
>
>
> root at any-of-the-clients:~# df -h
> Filesystem         Size  Used Avail Use% Mounted on
> ...
> imagegluster:/gv0  894G  478G  416G  54% /mnt/gluster
>
>
> Let me know if there's any other info I can provide about our setup.
>
> Cheers,
> Petr Certik
> ________
>
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-- 
Thanks,
Sanju
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