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From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Bugs in DM_DEVICE_STATUS ioctl no_flush flag settings
Date: Fri, 1 Apr 2016 10:08:42 +0200	[thread overview]
Message-ID: <56FE2C8A.5040309@redhat.com> (raw)
In-Reply-To: <56FD151C.8060500@redhat.com>

Dne 31.3.2016 v 14:16 Zdenek Kabelac napsal(a):
> Dne 21.3.2016 v 13:06 Ming-Hung Tsai napsal(a):
>> Hi,
>
> Hi
>> ------------------------------------------------------------------
>> 3. Fix _metadatapercent_disp to not to handle thin volumes
>>
>
>
> Actually I always planned to 'display' highest_mapped_sector -
> so I did now upstreamed it now (as it seemed arg was unused).
>
> So "Meta%" shows what's been the highest written sector as percent.
> We do plan to add either switch or new field to show those '%' in
> form of byte sizes in future...
>
> Not yet sure how useful or confusing this info is for now...
> But i.e. it's interesting to see  how much data is written
> by mkfs.ext4/xfs/reiserfs  and how far writes goes on a thin device.
>
> Time for complains...
>

Following here on myself - after longer debate how this would be
understandable by a user - we've concluded we will rather introduce
a new field and leave  "Meta%" empty - so there will
be rather a new field  'highest_size/HSize' instead.

Regards

Zdenek

  reply	other threads:[~2016-04-01  8:08 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-21 12:06 [linux-lvm] Bugs in DM_DEVICE_STATUS ioctl no_flush flag settings Ming-Hung Tsai
2016-03-31 12:16 ` Zdenek Kabelac
2016-04-01  8:08   ` Zdenek Kabelac [this message]
2016-04-01 16:18   ` Ming-Hung Tsai

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