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Vilobh Meshram | 17 Dec 2008 | 0 comments

Based on a recent study and suggestions I plan to come up with the post describing approximately how many tapes will we need to backup the data.

Ideal Data Transfer Rate = Amount of data to backup / Backup Window

Suppose you have 100 GB of data to backup and an 8 hour window then ideal data transfer rate would be 12.5 GB/hr . You would choose the Drive based on that requirement. After selecting the appropriate drive technology that provides the performance and selecting the cartridge capacity you need, we will focus on the how many cartridges you will need to have available.The number of cartridges depends upon the amount of data that you are backing up, the frequency of your backup, your retention period and the capacity of media used to store your backups.

A simple formula that can be used is

Number of Tapes= (total data to backup * Frequency of backup * Retention Period)/Tape Capacity

Following is an example:-

Total amount of data to...

The real Alex Davies | 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...

Joe Pfeiffer | 12 Dec 2008 | 0 comments

Back in June at Symantec Vision we had a group that busts myths perform (we're not allowed to use their official name but you can guess who these "busters" were).  We love to throw claims (myths) around in the storage industry so I thought I'd debunk a few things I've been reading about lately.  Yes, I am writing from a storage vendor as well so take it with a grain of salt but this is an attempt to at least bring these claims to light and let you make your own decisions.

Real time Reporting

There are several third party products that claim to do this.  These products typically compare the most with our own Veritas Backup Reporter (VBR for short) but really this is a feature we compare with NetBackup Operations Manager (NOM for short).  Both the 3rd party products as well as VBR simply can not do true real time reporting.  The way backup data is collected from all these applications is by executing a NetBackup...

TimBurlowski | 12 Dec 2008 | 0 comments

You can now find us on Facebook. That means you can become a fan, discuss current topics and hear the latest news.

Message Edited by TimBur on 12-12-2008 02:16 PM
Joe Pfeiffer | 09 Dec 2008 | 1 comment

Dhammica has a pretty strictly firewalled environment with Wintel based NetBackup servers (Windows 2003) backing up nearly a 1000 wintel, AIX & Linux clients with 20-40TB of storage.  They also have a large number of VMWare machines being protected with NetBackup. For databases they back up Lotus Notes 7, Oracle 9i RAC, Oracle 10g and MS SQL.  And finally for encryption they like to use the IBM EKM built in to the IBM TS3500 (3584) library along with IBM TS1120 tape drives.  Want to be as cool as Dhammica?  Get NetBackup 6.5.3 for yourself here.

CRZ | 03 Dec 2008 | 0 comments

To find the NetBackup 6.5.3 release updates, you can either go directly to the big list using this link:


...or you can go to our "list of links" TechNote for 6.5.3, which contain direct links to every update on a single page:


These 6.5.3 updates can - and should! - be applied to ANY 6.5.x environment.  That means 6.5.3 can be installed on top of 6.5 (aka 6.5 GA), 6.5.1, 6.5.1A, 6.5.2, or 6.5.2A!  Because it is a CUMULATIVE update, you will get all the...

Joe Pfeiffer | 02 Dec 2008 | 0 comments

Today engineering and support posted NetBackup 6.5.3 so anyone can go grab it right now from  Head on over and get your patent-pending Exchange Granular Recovery Technology on.  EGRT (as we love our acronyms) happened to be the only new feature added to 6.5.3 so the bulk of the effort was spent on making this thing bullet proof.  The final version has already been running in production environments for 650 days across several of our largest NetBackup users so upgrade with confidence and let us know what you think.

DBLittle | 27 Nov 2008 | 0 comments

When we talk about performance issues a couple of things immediately come to mind.  Probably first is making sure the expectations are realistic.  Then we start the search for the bottleneck.  There is always a bottleneck.  Sometimes it will be a fast bottleneck but it is still there and you must know where it is before you can do anything else.  Once you know where the bottleneck is you will know what your options are to increase performance and you will also have a very good idea what your expectations should really be.    

There is not real rocket science involved in locating the bottleneck.  It really just involves being systematic, keeping good notes, and having a good plan.  There are several places where there is documentation to help with this process including the NetBackup 6.5 Backup Planning and Performance Tuning Guide (updated October 1, 2008) which is available on the Symantec support website at...

ashjai | 25 Nov 2008 | 3 comments

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Shelley_S | 24 Nov 2008 | 0 comments

I’ve lived in a couple major metropolitan areas.   The kind with rush hour traffic so heavy a toddler on a tricycle can make better time.   Sometimes the major arteries have an HOV lane – a golden pathway of asphalt for High Occupancy Vehicles.   My route through Minneapolis has one.   When I lived in New Jersey, I had to endure 25 miles of watching traffic zoom by us poor slobs in the neighboring lanes.   There were times when the force of the air rushing by caused my car to sway.   Popular rumor had it that some of the passenger silhouettes were really blowup dolls.   It’s New York.  Anything is possible and in fact highly probable. 


So what do HOV lanes have in common with backup jobs?   The new disk pool and disk storage unit design in NetBackup 6.5 allows you to treat some of your most precious client backup jobs as cars privileged to drive the fast...