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Is NFS virtualized fully? [message #2367]

Fri, 31 March 2006 02:57

Groening
Messages: 2
Registered: March 2006
Location: Russia, Khabarovsk

Junior Member

What parts of NFS are not virtualized for today?

[Updated on: Fri, 31 March 2006 02:59]

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Re: Is NFS virtualized fully? [message #2371 is a reply to message #2367]

Fri, 31 March 2006 09:52

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

There are 2 possible ways of using NFS within VPS:
1. mount in host and bindmount to VPS
2. it is possible to be able to mount NFS from within VPS, but this requires 2-3 small patches. I had them somewhere for 2.6.8. They enable kernel_threads in VPS and do such similar things.

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Re: Is NFS virtualized fully? [message #2635 is a reply to message #2371]

Wed, 12 April 2006 22:23

dowdle
Messages: 261
Registered: December 2005
Location: Bozeman, Montana

Senior Member

Ok, I have the desired NFS mounts mounted on the physical host and I want to "bind mount" them inside of a VPS.

Er... how do I go about doing this?

I read the OpenVZ User's Guide and I saw bind mount mentioned a few times but it wasn't really clear.

HELP!

--
TYL, Scott Dowdle
Belgrade, Montana, USA

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Re: Is NFS virtualized fully? [message #2640 is a reply to message #2635]

Thu, 13 April 2006 06:15

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

Suggested by Babyface on IRC:

<Babyface> mount --bind /path /to/path
<Babyface> for example
<dowdle> That command is within the VPS?
<Babyface> mount --bind /nfsroot /vz/root/<vpsid>/mnt
<Babyface> no on hostnode
<dowdle> Ok, cool. Thanks I'll try that now.
<Babyface> and vps must be started before
<Babyface> or mounted
<Babyface> so better to create some kind of /etc/sysconfig/vz-scripts/<vpsid>.mount and .umount files Smile

<Babyface> then on vps startup it is automatically mounted
<dowdle> Wow... that worked like instantly! Thanks very much.
<dowdle> Ok, sure... about the mount and unmount scripts... as I want that to be automatic. So, if I create scripts with those names, they will be automati
cally parsed upon VPS startup?
<Babyface> yes
<dowdle> Right on.
<dowdle> Thanks Babyface!
<-- ckoehn has quit ("7:42pm| (@DenisGe) ich schneid nie wieder samstags nachts 2 uhr haare alleine")
<Babyface> mount file should look like
<Babyface> #!/bin/bash
<Babyface> # if one of these files does not exist then something is really broken
<Babyface> [ -f "${VE_CONFFILE}" ] || exit 1
<Babyface> # mount nfsroot.
<Babyface> mount --bind /nfsroot /vz/root/<vpsid>/mnt
<Babyface> exit ${?}
<Babyface> and must be executable
<Babyface> umount like
<Babyface> #!/bin/bash
<Babyface> # if one of these files does not exist then something is really broken
<Babyface> [ -f "${VE_CONFFILE}" ] || exit 1
<Babyface> # umount nfsroot.
<Babyface> umount /vz/root/<vpsid>/mnt
<Babyface> exit ${?}
<Babyface> also executable Smile

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Re: Is NFS virtualized fully? [message #2673 is a reply to message #2640]

Fri, 14 April 2006 17:22

jonsmirl
Messages: 11
Registered: April 2006

Junior Member

What about NFS servers? My application needs to simulate a cluster of NFSv4 servers for testing purposes. The kernel has support for NFSv4 servers but you need to turn on experimental drivers to see it.

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