[linux-lvm] Very newbie question (LVM+NFS)

[linux-lvm] Very newbie question (LVM+NFS)

[ETI - Barry Irchad Kader]

Hi, List!

I apologize a lot if my question has been already answered in this
mailing list. The archive is not searchable, and the search engines
didn't answer plently to my particular problem...

So here it goes.

I have multiple pcs running NFS server and one pc running NFS client.
This client-pc (named master server) can access to the remote
directories of the machines running NFS server.

Here is how my /etc/fstab is designed on the master server:

#/etc/fstab (master server)
192.168.1.2:/home/share    /mnt/192.168.1.2    nfs
rsize=8192,wsize=8192,timeo=14
192.168.1.3:/home/share    /mnt/192.168.1.3    nfs
rsize=8192,wsize=8192,timeo=14
192.168.1.4:/home/share    /mnt/192.168.1.4    nfs
rsize=8192,wsize=8192,timeo=14
192.168.1.5:/home/share    /mnt/192.168.1.5    nfs
rsize=8192,wsize=8192,timeo=14
192.168.1.6:/home/share    /mnt/192.168.1.6    nfs
rsize=8192,wsize=8192,timeo=14

I would like to know if it is possible, then, to use LVM in order to
aggregate all these nfs partitions onto one single volume.

Thanks in advance for any answer. And sorry again if this has been
already answered in this mailing list.

Best regards,
Kader.

Re: [linux-lvm] Very newbie question (LVM+NFS)

[Lars Grobe]

Hi Kader! 
 
> I would like to know if it is possible, then, to use LVM in order to 
> aggregate all these nfs partitions onto one single volume. 
 
No, it is impossible that way. NFS mounts are not partitions, but 
exported filesystems. They don't have e.g. a device entry on the client. 
 
If you want to use lvm, you need a block DEVICE, e.g. a harddisk. Usually 
this appears as /dev/sda, /dev/hda, /dev/rd/c0d0 etc. There are ways 
to export block devices over a network, e.g. "iscsi" - you export a 
device and get a new "scsi"-device on the client. This is a possible lvm 
target (am I wrong here?). 
 
Good luck, CU Lars. 

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Re: [linux-lvm] Very newbie question (LVM+NFS)

[Steffen Koch]

On Mon, 14 Jul 2003 23:15:17 +0000, ETI - Barry Irchad Kader wrote:

>#/etc/fstab (master server)
>192.168.1.2:/home/share    /mnt/192.168.1.2    nfs
>rsize=8192,wsize=8192,timeo=14
>192.168.1.3:/home/share    /mnt/192.168.1.3    nfs
>rsize=8192,wsize=8192,timeo=14
>192.168.1.4:/home/share    /mnt/192.168.1.4    nfs
>rsize=8192,wsize=8192,timeo=14
>192.168.1.5:/home/share    /mnt/192.168.1.5    nfs
>rsize=8192,wsize=8192,timeo=14
>192.168.1.6:/home/share    /mnt/192.168.1.6    nfs
>rsize=8192,wsize=8192,timeo=14
>
>I would like to know if it is possible, then, to use LVM in order to
>aggregate all these nfs partitions onto one single volume.
No, but you can put all these disks into one box and put all disks
together into one LV to use or reexport them.

Re: [linux-lvm] Very newbie question (LVM+NFS)

[ETI - Barry Irchad Kader]

Thanks you, Lars and Steffen for your answers.

This would be too easy if it was possible to use LVM this way :^)

Best regards,
Kader