Re: common filesystem for Linux and FreeBSD

2007-12-20 Thread Drew Tomlinson

On 12/18/2007 2:17 AM Chad Perrin said the following:

On Tue, Dec 18, 2007 at 11:06:15AM +0530, Girish Venkatachalam wrote:
  

[snip]

If FFS2 and EXT3 are ruled out, then what is remaining? ;)

XFS?



Maybe?

My impression is that there isn't good UFS support in Linux, and that
stable ext3 support is read-only in FreeBSD.  If that's the case, then it
really does seem to come down to a matter of figuring out whether XFS,
JFS, or ReiserFS (to throw out a few examples) have stable read/write
support in both Linux and FreeBSD systems.
  
I use XFS on a Gentoo Linux distribution for a MythTV box and it has 
performed well for me.  I've lost power on several occasions and the 
filesystem has remained intact.  However I recall reading somewhere that 
XFS is better tuned for large files (such as the TV recordings that are 
2+ Gb each) so you may want to check that before settling.


I have no idea about XFS on FreeBSD.

[snip]

HTH,

Drew

--
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Visit The Alchemist's Warehouse

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Re: common filesystem for Linux and FreeBSD

2007-12-18 Thread Ivan Voras
Chad Perrin wrote:
 On Mon, Dec 17, 2007 at 10:39:31AM +0100, Ivan Voras wrote:
 Chad Perrin wrote:

 That being the case, there is some data I would like to keep available to
 both FreeBSD and Linux systems, in stable read/write access with
 reasonably high access performance for both (fast enough to achieve
 decent frame rates, for instance).  This seems to rule out both ext3 and
 UFS2.  What filesystem(s) meet(s) my needs in this case?
 Since you didn't state anything about reliability, ext2 will maybe help
 you :)
 
 I thought stable covered that.

ext2fs is stable in the sense that there are no known bugs, and it's
100% compatible with Linux. It just works.

Unless you get frequent power outages or similar hard errors, the lack
of journaling shouldn't bother you much.



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Re: common filesystem for Linux and FreeBSD

2007-12-18 Thread Chad Perrin
On Tue, Dec 18, 2007 at 11:06:15AM +0530, Girish Venkatachalam wrote:
 
 I generally shy away from any multiboot situation since I have few
 machines with me. Even then I too have to multiboot once in a while.

I prefer to avoid multiboot as well, but for a while there it seemed
unlikely that I'd be able to do everything on this system that I want to
be able to do if all I have is FreeBSD.  I've managed to realize that my
impression of limitation was, in fact, a failure on my part -- and not on
FreeBSD's -- some hours ago, however.  As a result, it looks like I'll be
able to solve the problem without installing some Linux distro after all.


 
 If FFS2 and EXT3 are ruled out, then what is remaining? ;)
 
 XFS?

Maybe?

My impression is that there isn't good UFS support in Linux, and that
stable ext3 support is read-only in FreeBSD.  If that's the case, then it
really does seem to come down to a matter of figuring out whether XFS,
JFS, or ReiserFS (to throw out a few examples) have stable read/write
support in both Linux and FreeBSD systems.


 
 It is a tough choice indeed. Of course you could do a diskless boot off
 an NFS and use that as file system for communication between the two
 OSes.
 
 But for that you need another machine connected over LAN running NFS of
 course.

Yeah . . . this is a laptop, and I use it while traveling, so that
wouldn't really suit my needs in this case.  I appreciate the attempt,
though.  Anyway, as you may have gathered from an above paragraph of
mine, it looks like I'm probably not going to need the Linux system after
all.


 
 Sorry if my answer was irrelevant but this is the best I could do.

It would be pretty harsh of me to say your best wasn't good enough.
Thanks for the effort to help.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
Baltasar Gracian: A wise man gets more from his enemies than a fool from
his friends.
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Re: common filesystem for Linux and FreeBSD

2007-12-18 Thread Chad Perrin
On Tue, Dec 18, 2007 at 11:06:30AM +0100, Ivan Voras wrote:
 Chad Perrin wrote:
  On Mon, Dec 17, 2007 at 10:39:31AM +0100, Ivan Voras wrote:
  Chad Perrin wrote:
 
  That being the case, there is some data I would like to keep available to
  both FreeBSD and Linux systems, in stable read/write access with
  reasonably high access performance for both (fast enough to achieve
  decent frame rates, for instance).  This seems to rule out both ext3 and
  UFS2.  What filesystem(s) meet(s) my needs in this case?
  Since you didn't state anything about reliability, ext2 will maybe help
  you :)
  
  I thought stable covered that.
 
 ext2fs is stable in the sense that there are no known bugs, and it's
 100% compatible with Linux. It just works.
 
 Unless you get frequent power outages or similar hard errors, the lack
 of journaling shouldn't bother you much.

Ah, I understand your meaning now.  I thought you meant reliable
operation, and you just meant to refer to the fault-tolerance of the
filesystem itself.  Much clearer now.  Thanks.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
Leon Festinger: A man with a conviction is a hard man to change. Tell him
you disagree and he turns away. Show him facts and figures and he questions
your sources. Appeal to logic and he fails to see your point.
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Re: common filesystem for Linux and FreeBSD

2007-12-18 Thread Mark D. Foster
Ivan Voras wrote:
 ext2fs is stable in the sense that there are no known bugs, and it's
 100% compatible with Linux. It just works.

 Unless you get frequent power outages or similar hard errors, the lack
 of journaling shouldn't bother you much.

I suggest that ext2+noatime is going to give him much better performance
vs. ext3 anyway.

-- 
Said one park ranger, 'There is considerable overlap between the 
 intelligence of the smartest bears and the dumbest tourists.'
Mark D. Foster, CISSP [EMAIL PROTECTED]  http://mark.foster.cc/

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Re: common filesystem for Linux and FreeBSD

2007-12-18 Thread User Ota
On Tue, Dec 18, 2007 at 03:17:00AM -0700, Chad Perrin wrote:
 On Tue, Dec 18, 2007 at 11:06:15AM +0530, Girish Venkatachalam wrote:
  
  I generally shy away from any multiboot situation since I have few
  machines with me. Even then I too have to multiboot once in a while.
 
 I prefer to avoid multiboot as well, but for a while there it seemed
 unlikely that I'd be able to do everything on this system that I want to
 be able to do if all I have is FreeBSD.  I've managed to realize that my
 impression of limitation was, in fact, a failure on my part -- and not on
 FreeBSD's -- some hours ago, however.  As a result, it looks like I'll be
 able to solve the problem without installing some Linux distro after all.
 
 
  
  If FFS2 and EXT3 are ruled out, then what is remaining? ;)
  
  XFS?
 
 Maybe?
 
 My impression is that there isn't good UFS support in Linux, and that
 stable ext3 support is read-only in FreeBSD.  If that's the case, then it
 really does seem to come down to a matter of figuring out whether XFS,
 JFS, or ReiserFS (to throw out a few examples) have stable read/write
 support in both Linux and FreeBSD systems.
 
 
  
  It is a tough choice indeed. Of course you could do a diskless boot off
  an NFS and use that as file system for communication between the two
  OSes.
  
  But for that you need another machine connected over LAN running NFS of
  course.
 
 Yeah . . . this is a laptop, and I use it while traveling, so that
 wouldn't really suit my needs in this case.  I appreciate the attempt,
 though.  Anyway, as you may have gathered from an above paragraph of
 mine, it looks like I'm probably not going to need the Linux system after
 all.
 
 
  
  Sorry if my answer was irrelevant but this is the best I could do.
 
 It would be pretty harsh of me to say your best wasn't good enough.
 Thanks for the effort to help.
 
 -- 
 CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
 Baltasar Gracian: A wise man gets more from his enemies than a fool from
 his friends.
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If you feel like being adventerous, FAT/FAT32 :P


Russell Doucette

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Re: common filesystem for Linux and FreeBSD

2007-12-17 Thread Ivan Voras
Chad Perrin wrote:

 That being the case, there is some data I would like to keep available to
 both FreeBSD and Linux systems, in stable read/write access with
 reasonably high access performance for both (fast enough to achieve
 decent frame rates, for instance).  This seems to rule out both ext3 and
 UFS2.  What filesystem(s) meet(s) my needs in this case?

Since you didn't state anything about reliability, ext2 will maybe help
you :)



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Re: common filesystem for Linux and FreeBSD

2007-12-17 Thread David Robillard
 That being the case, there is some data I would like to keep available to
 both FreeBSD and Linux systems, in stable read/write access with
 reasonably high access performance for both (fast enough to achieve
 decent frame rates, for instance).  This seems to rule out both ext3 and
 UFS2.  What filesystem(s) meet(s) my needs in this case?

NFS would probably do it. You can use either OS as the NFS server and
use which ever file system you desire.

David
-- 
David Robillard
UNIX systems administrator  Oracle DBA
CISSP, RHCE  Sun Certified Security Administrator
Montreal: +1 514 966 0122
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Re: common filesystem for Linux and FreeBSD

2007-12-17 Thread Chad Perrin
On Mon, Dec 17, 2007 at 10:39:31AM +0100, Ivan Voras wrote:
 Chad Perrin wrote:
 
  That being the case, there is some data I would like to keep available to
  both FreeBSD and Linux systems, in stable read/write access with
  reasonably high access performance for both (fast enough to achieve
  decent frame rates, for instance).  This seems to rule out both ext3 and
  UFS2.  What filesystem(s) meet(s) my needs in this case?
 
 Since you didn't state anything about reliability, ext2 will maybe help
 you :)

I thought stable covered that.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
Larry Wall: A script is what you give the actors.  A program is what you
give the audience.
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Re: common filesystem for Linux and FreeBSD

2007-12-17 Thread Chad Perrin
On Mon, Dec 17, 2007 at 10:38:54AM -0500, David Robillard wrote:
  That being the case, there is some data I would like to keep available to
  both FreeBSD and Linux systems, in stable read/write access with
  reasonably high access performance for both (fast enough to achieve
  decent frame rates, for instance).  This seems to rule out both ext3 and
  UFS2.  What filesystem(s) meet(s) my needs in this case?
 
 NFS would probably do it. You can use either OS as the NFS server and
 use which ever file system you desire.

Are you suggesting I put the filesystem on another machine and use NFS to
make it available to both OSes on this machine?  I'm looking to have a
filesystem on *this* machine that is available to both OSes, running one
at a time.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
Paul Graham: Real ugliness is not harsh-looking syntax, but having to
build programs out of the wrong concepts.
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Re: common filesystem for Linux and FreeBSD

2007-12-17 Thread Girish Venkatachalam
On 22:05:08 Dec 17, Chad Perrin wrote:
 Are you suggesting I put the filesystem on another machine and use NFS to
 make it available to both OSes on this machine?  I'm looking to have a
 filesystem on *this* machine that is available to both OSes, running one
 at a time.
 

Chad,

I saw your question but couldn't think of a proper answer.

I generally shy away from any multiboot situation since I have few
machines with me. Even then I too have to multiboot once in a while.

Anyway coming back to the point.

If FFS2 and EXT3 are ruled out, then what is remaining? ;)

XFS?

It is a tough choice indeed. Of course you could do a diskless boot off
an NFS and use that as file system for communication between the two
OSes.

But for that you need another machine connected over LAN running NFS of
course.

Sorry if my answer was irrelevant but this is the best I could do.

Thanks.

-Girish
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