Networker slow backup
issue
We are facing slow backup issue many times or previously
added clients suddenly slow backup issue occurs. This is either because of Network
glitch at server end and on client side or configuration issue at both ends.
Scenario 1:
Network End: -
Below points should always be taken care off:
·
You should be always aware about link speed
between your backup server and backup clients
·
Any network or data capped is configured as
switch end
·
All network cards and switches have the same
Duplex, Speed, MTU and other settings
·
Also, check latency between your backup server
and backup client
·
Analyze network performance or problems with
netstat
Scenario 2:
Client End: -
Below points should always be taken care off:
·
Check data size and number of files in your drives
(hundred thousand or millions) of small files.
·
If you have small size huge files, then backup speed
will be automatically degrading. (If you have D drive with 100 GB and 400 files
but you have other drive E with 50 GB and 5000000…then E will take more time to
backup)
·
Defragmented disk drives
·
Make sure that the OS is up-to-date with latest patches
·
Also, check the load on server with Task Manager
- Networker should be up to date with latest version
·
Reboot the NetWorker server, client, and storage
node operating systems.
Scenario 3:
Backup Server End: -
Below points should always be taken care off:
·
Check if any Index is corrupted
·
Check if any defunct or zombie process is
related to that client
·
Check if check point enabled, disabled if not
require (for file server and huge data backup it should be enable so if save
fails, it can be restarted from the point of interruption). This setting is tricky
you will decide as per your data type.
·
Monitor and check the device write speeds over
time through NetWorker debug mode
- Ensure enough hardware resources (that is, tape drives) are available to handle the load.
- Networker should be up to date about version
- Also, check Device configuration in terms of device session max session and target session
·
With help of nsrinfo command check the what kind of data backing up on your environment
(Database, any other ongoing application). If you are taking flat file system
backup with ALL save set, then you should be alert about any database or SharePoint
or ongoing file access application data backup.
·
If you are backing up SQL/DB/MYSQL/SharePoint
server backup using ALL save set and without any respective module (means your
database backup are take care differently other than Networker) and it will be
taking long time to backup up the data. Here you should mention save set of
backup if you do not want to backup the any DB/Application servers (with Module)
·
Rebooted the NetWorker server, client, and
storage node operating systems
Note : While trouble shooting the slow backup issue you
should always coordinate with Network/Server admin and also historical logs
should be checked.