BPBKAR TEST
Measuring disk performance with bpbkar
Hello Experts.
I have been trying to understand the below command switch in windows as well as in unix.
1:- Suppose i have com1 Master, com2 Media server and Com3 is client. Now Com3 speed is low in Windows and as per Marianne i have 2 gb file in Com3 D:/test
I have enabled bpbkar logs with verbose 1 in com3
Below is the synatax which i have for from HOWTO56131 for windows
install_path\NetBackup\bin\bpbkar32 -nocont X:\ > NUL 2> C:\temp.txt
Now could somebody tell me about the syntax for my scenario. I also need to know where are we copying 2 GB file to test the speed of network?
2:- Suppose i have com1 Master, com2 Media server and Com3 is client. Now Com3 speed is low in unix and as per Marianne i have 2 gb file in Com3 /test
Pls tell me the syntax for my scenario as per the below syntax.
-
/usr/openv/netbackup/bin/bpbkar -nocont -dt 0 -nofileinfo -nokeepalives file system > /dev/null
Not sure where you are quoting me from, but it seems you totally misunderstood.
Please always include URLs when you refer to other posts...bpbkar is NOT testing the network.
It is simply testing read speed from disk.
This is the first step to troubleshoot slow backups.If client is slow to read data from disk, there is nothing that can be done as far as network or media server or tape drive is concerned.
The bpbkar test is simply reading data from disk and sending it to the system 'null' device. meaning nowhere.
The bpbkar syntax is explained in http://www.symantec.com/docs/TECH17541
The following example would tell bpbkar32 to back up the F: drive to a null device.
To test NETWORK, you need to have a file of about 2GB and ftp it to the media server.
Firstly find out if the client can read fast enough from disk before you test the network.More reading matter:
Overview of NetBackup performance testing.
http://www.symantec.com/docs/TECH147296
Symantec NetBackup™ 7.0 - 7.1 Backup Planning and Performance Tuning Guide
http://www.symantec.com/docs/DOC4483About tuning Windows for NetBackup
http://www.symantec.com/docs/HOWTO56210
