[mythtv-users] Recordings stay in database and on disk for some time after delete?

[John Drescher]

On Thu, Feb 25, 2010 at 1:21 PM, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> On Thu, Feb 25, 2010 at 12:37 PM, Greg Oliver <oliver.greg at gmail.com> wrote:
>> On Thu, Feb 25, 2010 at 11:33 AM, John Drescher <drescherjm at gmail.com> wrote:
>>> I have not used ext3 for my recordings for at least 4 years so I have
>>> not had to use the slow deletes option. Since sometime in 2008 I had
>>> begun moving my recordings from xfs to ext4 and now the datastorage
>>> that I use daily is all ext4. I do not have any problems with ext4 and
>>> it does not need the slow delete option.
>>
>> Hmmm, does that mean on a low power machine, turning off slow deletes
>> on a disk with ext4 does not send the disk IO bound?  I have not dared
>> try it, but it would be nice!
>
> I was thinking the same thing, but here's something that I'm a little
> concerned with:
>
> I was just reading the Gentoo wiki about converting ext3 to ext4 where
> the suggest unmounting the filesystem and doing:
>
> tune2fs -O extents,uninit_bg,dir_index /dev/device
> ...and...
> fsck -pf /dev/device
> ...to make sure everything's ok.  However, they also mention this:
> "Note: Using this method, new files will be created using the
> "extents" method, but old files will not be automatically converted"
>
> If I understand correctly, the exents feature is what makes deletes
> fast, so that tells me that deleting my older recordings would still
> be a problem.
>
> I've yet to read anything about actually converting existing files to extents.
>
> Anyone know more about any of that?
>

I am not sure. I did not convert. I just created new filesystems and
moved my files between my storage groups.

John