Re: [mythtv-users] Mounting two hard drives to single mounting point

[Stephen Boddy]

On Friday 23 September 2005 22:24, Tony Godshall wrote:
> According to Jim Reith,
>
> > >Hi,
> > >
> > >I'm not sure if this has been asked before or if its even possible,
> > >but is there any way to mount two HD's to a single mounting point in
> > >Linux?  I just added a second HD to my mythbox and was hoping there
> > >might be a way for /video to point to both of them.  Thanks.
> > >
> > >Azmat
> >
> > Search for LVM for how to create a multiple disk logical volume
>
> Also search for "union mounts", a bleeding edge feature in
> the 2.6 kernel.

That would not be appropriatefor this use case. The unionfs stacks the disks, 
and would fill up the first one available with write access, and never 
actually touch the "lower" disk. LVM or RAID 0 is the way to go for disk 
concatenation, though he would be better off to get a third drive, and RAID 5 
them. This would give him the smallest drives capacity * 2, with resilience 
if one disk went bad.

Funnily enough I have been reading up on the unionfs with the idea that a set 
of network booting diskless clients would all use a single read-only nfs 
served OS, with a machine specific read-write filesystem stacked on top. That 
way you maintain one system instead of 3 or 4. Marry this up to a backend, 
and you have a single centralized backend and server, then you can hook a new 
frontend into the network, tell it to network boot, and hey presto, another 
frontend!
-- 
Steve Boddy
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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Tony Godshall]

According to Jim Reith,
> >Hi,
> >
> >I'm not sure if this has been asked before or if its even possible,
> >but is there any way to mount two HD's to a single mounting point in
> >Linux?  I just added a second HD to my mythbox and was hoping there
> >might be a way for /video to point to both of them.  Thanks.
> >
> >Azmat
> 
> Search for LVM for how to create a multiple disk logical volume

Also search for "union mounts", a bleeding edge feature in
the 2.6 kernel.

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Re: AW: [mythtv-users] Mounting two hard drives to single mounting point

[Neil Bird]

Around about 22/09/05 13:41, [EMAIL PROTECTED] typed ...

hmmm, perhaps I should rethink keeping my mythstore in an ext3 partition over 
software raid :(


  From reading on the list a month of two back, I think ext2/3 is the only FS 
capable of cleanly mapping out dead bits of disk (should it start to go), and 
I felt I wanted that functionality.  That and wanting the power-safety of 
journalling means I kept ext3 when I had the chance of jumping.


  My vague feeling after reading around on it was also that it's also pretty 
much the most stable.  I'll just have to be careful about when I choose to 
delete big files ...


  Doesn't setting the largefiles[4] mkfs option help matters?  I went 
largefiles, maybe I should have done largefiles4. I do see pauses when 
deleting, but haven't really suffered anything because of it (but then most of 
my recordings are ~2.5Gb).


--
[EMAIL PROTECTED] ~]# rm -f .signature
[EMAIL PROTECTED] ~]# ls -l .signature
ls: .signature: No such file or directory
[EMAIL PROTECTED] ~]# exit
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Re: AW: [mythtv-users] Mounting two hard drives to single mounting point

[ghuntress]

hmmm, perhaps I should rethink keeping my mythstore in an ext3 partition over 
software raid :(



> All of 'em are basically resizeable under LVM, however not all are 
> shrinkable.
> 
> But ext2 isn't journaled, and ext3 is *horrible* at large file 
> deletions.  I believe another poster to this list just discovered the 
> reason for some of his problems was due to lengthy I/O caused by Myth 
> deleting very large (16GB?) files while trying to record another show on 
> his ext3 filesystem.
> 
> XFS, JFS, and ReiserFS handle deleting of large files much much better.  
> With XFS it is nearly instant, no matter the size.  JFS is almost as 
> fast.  ReiserFS I haven't tried yet.
> 
> David
> 
> Jochen Kühner wrote:
> 
> >You can also use ext2 or 3, they are both resizeable, too.
> >
> >I use also lvm with 400gb and one 200gb drive, works great.
> >
> >
> >-Ursprüngliche Nachricht-
> >Von: [EMAIL PROTECTED]
> >[mailto:[EMAIL PROTECTED] Im Auftrag von Jason McLeod
> >Gesendet: Mittwoch, 21. September 2005 20:09
> >An: Azmat; Discussion about mythtv
> >Betreff: Re: [mythtv-users] Mounting two hard drives to single mounting
> >point
> >
> >As mentioned by others, using Logical Volume Management is probably  
> >your best bet.  You may also find life easier to use ReiserFS for the  
> >filesystem on your newly created logical volume.  This will allow you  
> >to resize the filesystem in the future, should you add a 3rd drive.
> >
> >I'm currently running with 4 drives, giving me 450 Gigs of storage,  
> >just a bunch of old drives I had kicking around.
> >
> >I actually installed the Webmin package, to manage the LVM and set it  
> >up.  Quick and easy.  Make sure if you're going to use ReiserFS, that  
> >you install the Reiser utilities too.
> >
> >Cheers.
> >-Jason
> >
> >Blog: http://jayslife.com
> >GPG Fingerprint:
> >[EMAIL PROTECTED] - A6CC 40B4 99A4 1C08 55A7  BCFC ECDF ED68
> >
> >
> >On 21-Sep-05, at 10:31 AM, Azmat wrote:
> >
> >  
> >
> >>Hi,
> >>
> >>I'm not sure if this has been asked before or if its even possible,  
> >>but is there any way to mount two HD's to a single mounting point  
> >>in Linux?  I just added a second HD to my mythbox and was hoping  
> >>there might be a way for /video to point to both of them.  Thanks.
> >>
> >>Azmat
> >>___
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> >>
> >>
> >>
> >
> >
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> >
> >
> >  
> >
> 
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Re: AW: [mythtv-users] Mounting two hard drives to single mounting point

[David Morris]

All of 'em are basically resizeable under LVM, however not all are 
shrinkable.


But ext2 isn't journaled, and ext3 is *horrible* at large file 
deletions.  I believe another poster to this list just discovered the 
reason for some of his problems was due to lengthy I/O caused by Myth 
deleting very large (16GB?) files while trying to record another show on 
his ext3 filesystem.


XFS, JFS, and ReiserFS handle deleting of large files much much better.  
With XFS it is nearly instant, no matter the size.  JFS is almost as 
fast.  ReiserFS I haven't tried yet.


David

Jochen Kühner wrote:


You can also use ext2 or 3, they are both resizeable, too.

I use also lvm with 400gb and one 200gb drive, works great.


-Ursprüngliche Nachricht-
Von: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Im Auftrag von Jason McLeod
Gesendet: Mittwoch, 21. September 2005 20:09
An: Azmat; Discussion about mythtv
Betreff: Re: [mythtv-users] Mounting two hard drives to single mounting
point

As mentioned by others, using Logical Volume Management is probably  
your best bet.  You may also find life easier to use ReiserFS for the  
filesystem on your newly created logical volume.  This will allow you  
to resize the filesystem in the future, should you add a 3rd drive.


I'm currently running with 4 drives, giving me 450 Gigs of storage,  
just a bunch of old drives I had kicking around.


I actually installed the Webmin package, to manage the LVM and set it  
up.  Quick and easy.  Make sure if you're going to use ReiserFS, that  
you install the Reiser utilities too.


Cheers.
-Jason

Blog: http://jayslife.com
GPG Fingerprint:
[EMAIL PROTECTED] - A6CC 40B4 99A4 1C08 55A7  BCFC ECDF ED68


On 21-Sep-05, at 10:31 AM, Azmat wrote:

 


Hi,

I'm not sure if this has been asked before or if its even possible,  
but is there any way to mount two HD's to a single mounting point  
in Linux?  I just added a second HD to my mythbox and was hoping  
there might be a way for /video to point to both of them.  Thanks.


Azmat
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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Andrew Herron]

as is XFS  :)

I've got a 120gb in my box atm, LVM'd with 3/4 of the 80gb primary
drive.  I eventually plan to move it all to a couple of bigger drives
and have an insane 60gb livetv buffer :D


Andy

On 22/09/05, Jochen Kühner <[EMAIL PROTECTED]> wrote:
> You can also use ext2 or 3, they are both resizeable, too.
>
> I use also lvm with 400gb and one 200gb drive, works great.
>
>
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AW: [mythtv-users] Mounting two hard drives to single mounting point

[Jochen Kühner]

You can also use ext2 or 3, they are both resizeable, too.

I use also lvm with 400gb and one 200gb drive, works great.


-Ursprüngliche Nachricht-
Von: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Im Auftrag von Jason McLeod
Gesendet: Mittwoch, 21. September 2005 20:09
An: Azmat; Discussion about mythtv
Betreff: Re: [mythtv-users] Mounting two hard drives to single mounting
point

As mentioned by others, using Logical Volume Management is probably  
your best bet.  You may also find life easier to use ReiserFS for the  
filesystem on your newly created logical volume.  This will allow you  
to resize the filesystem in the future, should you add a 3rd drive.

I'm currently running with 4 drives, giving me 450 Gigs of storage,  
just a bunch of old drives I had kicking around.

I actually installed the Webmin package, to manage the LVM and set it  
up.  Quick and easy.  Make sure if you're going to use ReiserFS, that  
you install the Reiser utilities too.

Cheers.
-Jason

Blog: http://jayslife.com
GPG Fingerprint:
[EMAIL PROTECTED] - A6CC 40B4 99A4 1C08 55A7  BCFC ECDF ED68


On 21-Sep-05, at 10:31 AM, Azmat wrote:

> Hi,
>
> I'm not sure if this has been asked before or if its even possible,  
> but is there any way to mount two HD's to a single mounting point  
> in Linux?  I just added a second HD to my mythbox and was hoping  
> there might be a way for /video to point to both of them.  Thanks.
>
> Azmat
> ___
> mythtv-users mailing list
> mythtv-users@mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>


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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Jason McLeod]

As mentioned by others, using Logical Volume Management is probably  
your best bet.  You may also find life easier to use ReiserFS for the  
filesystem on your newly created logical volume.  This will allow you  
to resize the filesystem in the future, should you add a 3rd drive.


I'm currently running with 4 drives, giving me 450 Gigs of storage,  
just a bunch of old drives I had kicking around.


I actually installed the Webmin package, to manage the LVM and set it  
up.  Quick and easy.  Make sure if you're going to use ReiserFS, that  
you install the Reiser utilities too.


Cheers.
-Jason

Blog: http://jayslife.com
GPG Fingerprint:
[EMAIL PROTECTED] - A6CC 40B4 99A4 1C08 55A7  BCFC ECDF ED68


On 21-Sep-05, at 10:31 AM, Azmat wrote:


Hi,

I'm not sure if this has been asked before or if its even possible,  
but is there any way to mount two HD's to a single mounting point  
in Linux?  I just added a second HD to my mythbox and was hoping  
there might be a way for /video to point to both of them.  Thanks.


Azmat
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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Greg Estabrooks]

> So it sounds like I need to mount the 2 other shares I have to a directory
> outside of the MYTHVIDEO directory...then I create a symlink IN mythvideo to
> every directory from the mounts I created?

 Either.You can mount them under wherever you tell mythvideo to look

 Ex:   

  /data/video - BASE (partition 1)
  /data/video/mount1  - (partition 2)
  /data/video/mount2  - (partition 3)


 Or   Symlinks:

  /mount1
  /mount2

  /data/video - BASE
  /data/video/mount1 -> /mount1
  /data/video/mount2 -> /mount2

 Or even a mixture of the 2.


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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Greg Estabrooks]

> my MYTHVIDEO directory each pointing to a sharepoint. Inside each sharepoint

 Sounds simple enough with mythvideo.  I just point mythvideo to /data/video
and mount or symlink to my various other directories.  Mythvideo will 
follow the links when scanning for videos.

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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Drew Tomlinson]

On 9/21/2005 8:10 AM Juan Jesús García de Soria Lucena wrote:


I don't know, but unionfs could be an option here...


AFAIK, unionfs doesn't span multiple computer.  And even if it did, I 
would be reluctant to do any writing to that filesystem.  To avoid data 
loss and keep things clean, I would mount all the drives in one box, use 
LVM, and then share the ONE filesystem with all that needed it. 

Because I came from the FreeBSD world and already had a server running 
this OS, my shares are on that box and I'm using an equivalent to LVM.  
Because I also have Windows at home, I share using smbfs.  When I ran 
out of  room to mount drives in the physical case, I opted for firewire 
(which at that time was much better than USB) and started adding 
external firewire enclosures to house my IDE drives.  This is how I'm 
doing things now and it works great!


Cheers,

Drew

--
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Magic Tricks, DVDs, Videos, Books, & More!

http://www.alchemistswarehouse.com




2005/9/21, James Oltman <[EMAIL PROTECTED] 
>:



I have 2 computers with a total of 3 sharepoints.  So I have 3
directories in my MYTHVIDEO directory each pointing to a
sharepoint.  Inside each sharepoint are directories of different
shows I have stored.  It would be nice to have one big list to
scroll through of all those show directories.  Is there a way to
have a directory of LINKS to the directories so that in myth it
would just be one large list instead of several mounted sharepoint
directories?  I hope this makes sense.   Thanks!

Jim


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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Juan Jesús García de Soria Lucena]

I don't know, but unionfs could be an option here...2005/9/21, James Oltman <[EMAIL PROTECTED]>:
 21 Sep 2005 07:47:24 -0700, Jim Reith <[EMAIL PROTECTED]> wrote:

>Hi,>>I'm not sure if this has been asked before or if its even possible,>but is there any way to mount two HD's to a single mounting point in>Linux?  I just added a second HD to my mythbox and was hoping there
>might be a way for /video to point to both of them.  Thanks.>>Azmat

Here is a question that is related I think:

I have 2 computers with a total of 3 sharepoints.  So I have 3
directories in my MYTHVIDEO directory each pointing to a
sharepoint.  Inside each sharepoint are directories of different
shows I have stored.  It would be nice to have one big list to
scroll through of all those show directories.  Is there a way to
have a directory of LINKS to the directories so that in myth it would
just be one large list instead of several mounted sharepoint
directories?  I hope this makes sense.   Thanks!

Jim

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Re: [mythtv-users] Mounting two hard drives to single mounting point

[James Oltman]

 21 Sep 2005 07:47:24 -0700, Jim Reith <[EMAIL PROTECTED]> wrote:
>Hi,>>I'm not sure if this has been asked before or if its even possible,>but is there any way to mount two HD's to a single mounting point in>Linux?  I just added a second HD to my mythbox and was hoping there
>might be a way for /video to point to both of them.  Thanks.>>Azmat

Here is a question that is related I think:

I have 2 computers with a total of 3 sharepoints.  So I have 3
directories in my MYTHVIDEO directory each pointing to a
sharepoint.  Inside each sharepoint are directories of different
shows I have stored.  It would be nice to have one big list to
scroll through of all those show directories.  Is there a way to
have a directory of LINKS to the directories so that in myth it would
just be one large list instead of several mounted sharepoint
directories?  I hope this makes sense.   Thanks!

Jim
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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Jim Reith]

Hi,

I'm not sure if this has been asked before or if its even possible,
but is there any way to mount two HD's to a single mounting point in
Linux?  I just added a second HD to my mythbox and was hoping there
might be a way for /video to point to both of them.  Thanks.

Azmat


Search for LVM for how to create a multiple disk logical volume

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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Cecil Watson]

Azmat wrote:

Hi,

I'm not sure if this has been asked before or if its even possible, but is
there any way to mount two HD's to a single mounting point in Linux? I just
added a second HD to my mythbox and was hoping there might be a way for
/video to point to both of them. Thanks.

Azmat

LVM.

Regards,

Cecil
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Re: [mythtv-users] Mounting two hard drives to single mounting point

[Scot L. Harris]

On Wed, 2005-09-21 at 10:31, Azmat wrote:
> Hi,
> 
> I'm not sure if this has been asked before or if its even possible,
> but is there any way to mount two HD's to a single mounting point in
> Linux?  I just added a second HD to my mythbox and was hoping there
> might be a way for /video to point to both of them.  Thanks.
> 
> Azmat 

Logical Volume Manager (LVM) is what allows you to create a file system
that spans multiple drives.  Doing this currently on my master backend
system with four drives.


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[mythtv-users] Mounting two hard drives to single mounting point

[Azmat]

Hi,

I'm not sure if this has been asked before or if its even possible, but
is there any way to mount two HD's to a single mounting point in
Linux?  I just added a second HD to my mythbox and was hoping
there might be a way for /video to point to both of them.  Thanks.Azmat
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