MSEO CPU impact?
Hey all,
I am currently looking into Media Server Encryption Option (MSEO) for our media servers and I am finding it difficult to find ample documentation related to its impact on hardware. Particularly, CPU performance has me concerned and all documentation for Netbackup 7.5 does not provide any details concerning the performance impact that is specified. I contacted Netbackup support and they claimed that as long as your hardware can support Netbackup operations normally, MSEO should be fine and there are no specific requirements for CPU if this is the case.
All software version for master/media servers is 7.5.0.1 currently.
Does anyone have any experience using MSEO?
Please see : http://www.symantec.com/docs/HOWTO56061 - Encryption and NetBackup performance
Media Server Encryption Option (MSEO)
Data encryption (and compression) can be performed on the NetBackup media server, by means of the Media Server Encryption Option (MSEO).
Note the following:
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In most cases, to avoid the need for additional tapes, you should compress the data before encrypting it. MSEO can both compress the data and encrypt it.
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MSEO compression increases the amount of data that the media server must process in order to keep the tape drive streaming.
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MSEO is usually most effective when only a limited amount of the backup data needs encryption.
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The greater the amount of data to be encrypted, the greater the CPU load that is placed on the media server. If MSEO also compresses the data before encrypting it, the CPU demands are even greater. For example, to compress and encrypt 100 MB/second of data with a Solaris media server requires roughly an additional 8.7 GHz of CPU processing for MSEO.
For more information on MSEO performance, see "A guide to best practices when using the NetBackup Media Server Encryption Option:"
http://www.symantec.com/docs/TECH73132
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