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From: Alex Mathiasen <am@mira.dk>
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Date: Tue, 29 Jan 2013 14:34:29 +0100
Subject: NFS Exported drives (FSID) issues. 
Thread-Topic: NFS Exported drives (FSID) issues. 
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Hello,

I am trying to setup a Cloudstack using DRBD as primary storage.=20

I have a setup with Cloudstack working beautifully with a single DRBD stora=
ge, a management server and some host servers.

However, I wish to add more primary storage from the same DRBD setup and th=
en all hell breaks loose.

I have the following DRBD storage exported from my setup now:

/export/drbd0 10.212.212.0/24(rw,async,no_root_squash,no_subtree_check,nohi=
de,crossmnt,fsid=3D0)

However, If I add DRBD1 within my /etc/exports file, the issues begin. Even=
 before I have added the new DRBD storage as Primary storage within my Clou=
dstack, system VM=1B$B!G=1B(Bs, Routers and VM=1B$B!G=1B(Bs wont start.

As I have understood, the fsid must be unique, and therefor none of the exp=
orted drives must have the same value. So =1B$B!H=1B(B0=1B$B!m=1B(B wont do=
. However I have experienced that Cloudstack wont work with exported drives=
 that doesn=1B$B!G=1B(Bt have a value of =1B$B!H=1B(B0=1B$B!m=1B(B.

/export/drbd0 10.212.212.0/24(rw,async,no_root_squash,no_subtree_check,nohi=
de,crossmnt,fsid=3D0)
/export/drbd1 10.212.212.0/24(rw,async,no_root_squash,no_subtree_check,nohi=
de,crossmnt,fsid=3D0)

This wont work.

/export/drbd0 10.212.212.0/24(rw,async,no_root_squash,no_subtree_check,nohi=
de,crossmnt,fsid=3D1)
/export/drbd1 10.212.212.0/24(rw,async,no_root_squash,no_subtree_check,nohi=
de,crossmnt,fsid=3D2)

This wont work either.

It seems as soon I try to export any drive without "fsid=3D0" - It wont wor=
k.=20

I have attached some paste from management-server.log @ http://pastebin.com=
/SYBxXfux

Do any of you have any suggestions to solve this issue? I wish to expand my=
 primary storage, but at the moment I simply can=1B$B!G=1B(Bt get it to wor=
k. :-(