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Netting Out NetBackup

Showing posts tagged with NetBackup remove filter
Showing posts by Lykewake remove filter
New adventures in Disaster Recovery
Lykewake | 18 Aug 2010 | 0 comments

Probably one of the most misunderstood aspects of some of the newer disk based backup technologies like OST and PDDO is exactly how you use them as part of your site DR strategy, particularly if your DR domain is separate from your production domain.

Sure, if you have one domain spanning multiple sites you can write your backups to deduplicating disk storage at one site and copy it to another site using optimized duplication but that second site needs to be part of the same NetBackup domain to do that and it’s not much use on its own if you lose the first site and that’s the only place you have a master server.

Of course you could be replicating your catalog to a standby master server at the second site but to do that Symantec says you need clustered master servers on both sites.

In NetBackup 6.5.4 Symantec allows you to write your catalog backups to these newer disk types.  You can even duplicate the catalog backup between sites with storage...

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SAN Client fact and fiction
Lykewake | 16 Dec 2008 | 1 comment

The SAN client was introduced in NetBackup 6.5 to allow large amounts of data to backed up rapidly over SAN connections rather than using LANs. The SAN client has distinct advantages over both the LAN client and the SAN media server . The SAN client is much easier to administer and operate the a SAN media server as no devices are presented directly to the server being backed up. It also offers significantly faster transfer rates that Gbit LAN connections allow (testing with 4 Gbit HBAs has shown transfer speeds of the order of 500 Mbytes/sec). In the initial 6.5 GA release the SAN client was limited to 2 Gbit fibre connections and could only back up to disk on the media server.

 

Both of these restrictions were removed in NetBackup 6.5.2 when backup direct to tape and support for 4Gbit HBAs was introduced. The platform coverage for FT Media Servers to support the SAN client was also extended. The SAN client can be used with most standard NetBackup clients and...

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Don't forget the RTO
Lykewake | 30 Oct 2008 | 0 comments

During his presentation at the Customer Forum last week Curtis Preston commented that the choice of backup storage technology should not compromise the restore time.  His comment was specifically aimed at deduplicating technologies and was a timely reminder that you should always test the time to restore when evaluating deduplicating storage.  (He also made the valid point that not all deduplication is the same and you shoud always evaluate at least two dedupe devices and compare the space savings.)

 

His comments reminded me that the whole reason we do backups is to be able to restore and that we should never lose sight of that all important RTO target.  Technologies such as client side dedupulication and synthetic full backup are very good ways of achieving a backup when bandwidth is limited but you need to remember that recovering a server or application over a narrow pipe is going to take a long time.

 

When it comes to...

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