We are currently using a netvault backup system in combination with a Netapp filer. To be able for netvault to communicate with the tape library and the tape drives to make the backup ndmpd is used as a deamon. However in some cases those sessions will be hanging. Only in extreme cases. This is what I found in a help document, it can come in handy if you have a problem:
NDMP backup says "Writing to Media" even though it is not writing to media.
Affected NV Version: 7.4.x
OS Version: All
Plugin version: 6.3.x
Application version: N/A
Description:
Several jobs continually say "Writing to Media" even though they are not writing to media. If you look at the logs, it shows a "Channel Error" near the bottom of the log. In "Device Manager" the drive used for these backups says: DRIVE 1 (Locked by Session(Hard).
Solution/Workaround/Procedure:
Most likely the ndmp sessions on the filer have entered a hung state. Issue the following commands at the console prompt of the filer;
ndmpd killall
ndmpd off
ndmpd on
ndmpd status (shows if all strays processes have been eliminated)
This should resolve issue.
When using Netvault backup software you might from time to time run into the error that when you start the Netvault GUI on a windows machine you get a popup with the error Communication Errors.
The reason for this is in most cases that you startup your laptop (or desktop) and initiate a VPN session to your datacenter where your Netvault server is running. Netvault somehow cannot handle this IP switching which happens when you initiate a VPN connection.
The quickest way to solve this problem is to open your local NetVault Configurator GUI and go to the “Service” tab. Here you will find that the current state of Netvault is running. Click the “Stop Service” button… wait for a couple of seconds and click the “Start Service” button. Now you should be able to start the Netvault GUI without any error.
I personally only encountered this problem in situations where I initiate a VPN connection to the office when I am working from a remote location and have to check the state of the backups.
After installing a new client as a member of the backup group we tried to boot the netvault software to connect to the backup server and the StorageTek L80 tape library. However every time we tried to start the Netvault GUI we got the message ‘No controlling server set’.
After some tries we found out that you have to manually set the server name in the gui.cfg file. When you open the gui.cfg file you will find the following lines at the bottom of the file:
[servers]
names=
you will have to manually enter the server name after “names=”. Remember you have to enter the name and NOT the ip address of the server you want to connect to.
We are currently using a netvault backup system in combination with a Netapp filer. To be able for netvault to communicate with the tape library and the tape drives to make the backup ndmpd is used as a deamon. However in some cases those sessions will be hanging. Only in extreme cases. This is what I found in a help document, it can come in handy if you have a problem:
