11-14-2012 08:02 AM
Hello Everyone,
Would appreciate if anybody can give me detailed information on "Maximum I/O streams per volume" in Netbackup using SLP.
It'll be great if it can be with Example.
Environment:
Netbackup 7.1.0.1 & Windows Server 2008.
Thanks in Advance
Hemant
Solved! Go to Solution.
11-14-2012 08:52 AM
From the Netbackup 7.5 SLP best pratice manual:
http://www.symantec.com/docs/HOWTO73205
11-14-2012 08:52 AM
From the Netbackup 7.5 SLP best pratice manual:
http://www.symantec.com/docs/HOWTO73205
11-14-2012 11:15 AM
If you are using a disk appliance, such as a Data Domain or other device, there is likely an admin guide or manual that will tell you the vendor's recommended maximum number of streams. You should follow their advice, as there are multiple factors that can affect the number of streams, including the appliance's CPU, memory, etc.
For instance, a Data Domain model DD670 with 16GB of RAM can handle 90 write streams (backups), 30 read streams (restores), or 60 replication streams if it is the replication source. If the memory on the DD670 is increased to 36GB of RAM, it can still only handle 90 write streams, but now 50 read streams or 90 streams as the source for replications.
I set my # of streams below the max number of write streams, as I have seen some backups fail intermittently when set exactly to the above numbers.