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> -----Original Message-----
> From: Benyamin.Wongprasert@xxxxxxxxxxx
> [mailto:Benyamin.Wongprasert@xxxxxxxxxxx]
> Sent: Wednesday, November 08, 2000 9:59 AM
> To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Subject: How to manage External Storage?
>
>
> Hi all,
> I want some suggestion about my external storage & filesystem.
> I have 1 external storage(Compaq Raid Array 4100) connected 2 linux
> server(Compaq Proliant ML530) via fibre channel.
> I mount the same patition to both server
Yowzahs! Big bucks there. I'm jealous..... ;)
> =============================================================
> [root@LINUX1 /root]# more /etc/fstab
> /dev/ida/c0d0p1 / ext2 defaults
> 1 1
<snip fstab listings>
> ==============================================================
> when I copy file to the external storage by using server #1(LINUX1) and
> then 'ls -l' I can see the file
> but I can't see the file immediately when I see from LINUX2.I must unmount
> & mount it before.
> 1.What should I do If I want to see the files that create by the other
> server immediately? and What the filesystem that I must use?
>
This is why we have such things as drbd, and in the (near?) future, GFS. GFS
is definitely more like what you're looking for. http://www.sistina.com/gfs/
is the home page. As I understand it, its not 100% production ready, but it
might be more reliable than what you're attempting now, which is simply
impossible(mounting ext2 on two seperate machines at once).
> when I copy file to the external storage by using LINUX1 and also copy
> another file to the external storage by using LINUX2 at the
> same patition(same mount point)
> ==============================================================
> LINUX1 LINUX2
> copy a.txt to /ra4100/lun1 copy b.txt to /ra4100/lun1
> 'ls' will see a.txt b.txt
> If I unmount & mount the /ra4100/lun1 at LINUX1 first, the file a.txt will
> be lost
> 'ls' will see b.txt b.txt
> and If I unmount & mount the /ra4100/lun1 at LINUX2 first, the file b.txt
> will be lost
> 'ls' will see a.txt a.txt
> ==============================================================
> 2.How can I prevent this error? 'my file is very important'. If It lost
> maybe my boss will fine me! :-(
> I plan to use piranha (FOS) if I can't mount the same patition at the same
> time.I think I will use piranha to activate the patition at a time.
> Anyone have any comment and suggestion please reply this mail....
> Thanks a lot :-)
> Benyamin W.
>
See above...
<snip>
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