Update network drivers on both the Veeam Backup & Replication server and the vCenter Server and make sure the connection between the servers is stable and reliable.
https://login.veeam.com/en/oauth?client_id=nXojRrypJ8&redirect_uri=https%3A%2F%2Fwww.veeam.com%2Fservices%2Fauthentication%2Fredirect_url&response_type=code&scope=profile&state=eyJmaW5hbFJlZGlyZWN0TG9jYXRpb24iOiJodHRwczovL3d3dy52ZWVhbS5jb20va2IxNjQ3IiwiaGFzaCI6IjI0ZmVjNGY5LWQwOTQtNGI2Zi04Nzc5LWU5NTJjNmZlMTcxOSJ9
The specified transports are not available
Challenge
The SAN or Virtual Appliance mode intermittently fails with the error:
Error: Client error: The specified transports are not available. Available transports: [nbd]. Specified transports: [san]. VMDK path: [[Datastore] VMname/VMName.vmdk].
The following entries can be seen in the VeeamAgent log:
diskLibPlugin: [timestamp info 'transport'] Connecting to host symcVC.symantec.com on port 443 using protocol https
diskLibPlugin: [timestamp trivia 'transport'] Initializing SSL context
diskLibPlugin: [timestamp trivia 'DiskLibPlugin'] Setting error in state 1 : class Vmacore::SystemException(A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. )
diskLibPlugin: [timestamp error 'DiskLibPlugin'] Cannot use advanced transport modes for vc/moref=vm-xxxx/snapshot-xxxx: Other error encountered: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. .
diskLibPlugin: [timestamp info 'DiskLibPlugin'] Successfully released all resources.
VixDiskLib: Advanced transport modes not available for opening moref=vm-xxxx.
Cause
VDDK library is not able to utilize advanced backup modes - SAN or Virtual Appliance.
The issue is caused by an unreliable network connection between the Veeam Backup & Replication server and the vCenter Server.
The issue is caused by an unreliable network connection between the Veeam Backup & Replication server and the vCenter Server.
Solution
KB ID:
1647
Product:
Veeam Backup & Replication
Version:
6.x
Published:
2012-06-15
Last Modified:
2020-08-13
Couldn't find what you were looking for?
Below you can submit an idea for a new knowledge base article.
Report a typo on this page:
Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!
Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!
Spelling error in text
Knowledge base content request
