[mythtv-users] Better think twice before choosing an FS especially for LVM

David myth at dgreaves.com
Tue Sep 20 11:52:05 UTC 2005


Thomas Börkel wrote:

> HI!
>
> I have 2 drives: 160 GB + 120 GB. LVM with XFS.
>
> If one of my drives starts failing (using SMART monitoring), I just
> add a new drive (probably 250 GB) and let LVM shuffle all blocks from
> the failing drive to the new drive.
>
> If the new drive is bigger than the failing drive, I extend LVM and
> expand XFS.
>
> So, what's the problem? Why do I need shrinking at all? I always can
> get a new HD with at least the size of the failing one.

You don't :)
XFS will be fine for you (as it is for me and other people who really
don't forsee using less space for video in the future).

David

PS you'll only be fine *if* it starts to fail by nicely sending you a
little warning saying:

I'm going to be a bit poorly tomorrow - would you mind getting all the
data off me.
Thanks a lot.
Yours sincerely

/dev/hdb

If on the other hand it says:

cough.
<splat>
/dev/hdb: No such device.

Then you're without a filesystem. SMART may help you but it's not by any
means guaranteed.





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