Keep in mind if you do BMR backups..it adds to the catalog space as well From: [email protected] [mailto:[email protected]] On Behalf Of Todd Jackxon Sent: Friday, March 13, 2009 12:46 PM To: Stafford, Geoff Cc: [email protected] Subject: Re: [Veritas-bu] How to properly calculate the Catalog
Thanks Geoff Thanks for pointing out that difference .. I didn't add the Exchange backup totals to the Month-end Fulls. This would be the same amount as Weekly but only a longer retention. Just seems like a very large amount for some reason (240GB). Seems I am missing something here. Thanks Jack On Fri, Mar 13, 2009 at 12:01 PM, Stafford, Geoff <[email protected]<mailto:[email protected]>> wrote: That's the same method I've used. I think there is a little fluff in the 2% and you can also obviously cut this down by compressing the catalog after 30 days or whatever. The only thing I noticed is you are calculating 30 incrementals per month, I'm assuming you actually do 6 incrementals per week (no incremental on same day as full) so it would be 24 not 30. Also, just out of my own curiosity, why are your monthly fulls less than your weekly fulls? I would expect them to be equal or possibly the monthly would be larger if you are including more data. Date: Fri, 13 Mar 2009 11:40:35 -0400 From: Todd Jackxon <netbackup.info<http://netbackup.info/>@gmail.com<http://gmail.com/>> Subject: [Veritas-bu] How to properly calculate the Catalog To: [email protected]<mailto:[email protected]> Message-ID: <[email protected]<mailto:[email protected]>> Content-Type: text/plain; charset="windows-1252" Hello All, I am trying to use the formula for calculating the catalog and not sure about the results. Has anyone Calculated the catalog using the formula in the Performance Tuning guide? Can you please explain how to properly do this? 1 ? "When the formula states total backups" ... is this for one Full backup of all data for one day? Schedule Incremental - daily - retention 5 weeks Weekend Full - retention 6 weeks (only first 3 weekends) Month-End - retention 1 year (last Saturday of the month) Below is my attempt to calculate this. Any clarification would be appreciated. ----------------- 614GB data back up * 3 Full Backups (1842GB) * 2 months retention (3684GB) = 3.5 TB Full 447GB data back up * 1 Full Monthly Backup (447GB) * 12 months retention (5364GB) = 5.2 TB Month End Full 122GB incremental * 30 incr backups monthly (3660GB) * 5 week retention (1.25 months) 4605GB = 3.5 TB -------------- 3.5 TB incr 3.5 TB Weekly Full 5.2 TB Month-End Full = 12.2 TB = Netbackup catalog size (2%) = 240GB Catalog space This does not seem right??? Thanks Jack _______________________________________________________ Barclays www.barclaycardus.com<http://www.barclaycardus.com/> _______________________________________________________ This e-mail and any files transmitted with it may contain confidential and/or proprietary information. It is intended solely for the use of the individual or entity who is the intended recipient. Unauthorized use of this information is prohibited. If you have received this in error, please contact the sender by replying to this message and delete this material from any system it may be on.
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