[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: [Nbd] Question About nbd-server and Raid

Aha.  Going back to my original config file, I found an extraneous character in it that I had not noticed before.  That gave the error message "** Message: No configured exports; quitting."  Sorry for my error.  After starting over with a fresh config file (below) all is working.  I really like nbd as a way to export files from a single source for multiple clients to use.  Thanks !

--- start ---
# Network Block Device Export Config File

[generic]
	listenaddr = 192.168.142.6
	allowlist = true
	authfile = /etc/nbd-server/allow

[lfs]
	exportname = /dev/md127p2
	maxconnections=3
	transactionlog = /var/log/nbd0

[sources]
	exportname = /dev/sda12
	maxconnections=3
	transactionlog = /var/log/nbd1
--- end ---

Wayne

On 02/14/2015 02:27 AM, Wouter Verhelst wrote:

On Sun, Feb 08, 2015 at 03:20:30PM -0800, Wayne E. Harlan wrote:

I have been using nbd for almost a year to export a set of scripts I use
to two other linux boxes.  For most of that time the exported partition
was /dev/sdb3, as in this config:

# Network Block Device Export Config File
[generic]
      listenaddr = <my ip address>
      allowlist = true
      authfile = /etc/nbd-server/allow

[lfs]
      exportname = /dev/sdb3
      maxconnections=3
      transactionlog = /var/log/nbd0

Recently I migrated the files on sdb3 to a mirrored raid partition,
/dev/md127p2.  The mirrored array was formed as whole disk and then the
array was partitioned.  No problem mounting the partition locally, but
when I changed the exportname as exportname = /dev/md127p2, nbd-server
would not export it.  It barfed, with a message about "no valid
exportnames".

Wut?


Then, on a total whim, I made a link in /dev like:  ln -s md127p2 lfs,
and then using exportname = /dev/lfs somehow allowed the nbd-server to
export the mirrored partition.

Is it the characters in the name or the length of the name, or what ?

I have never seen that message, and have no clue where it's coming from.
Can you post the exact error message, and an example config file that
reproduces it?
Reply to: