All good and fine but i dont think it will help you that much. The Space the Databases need is only a tiny bit of Server Resources you’ve to think about. The Quarantinespace for Example can be a bit bigger than your SQL Tables.
Think about CPU Load for Virusscan (if you do) And much more Important than discspace is the Mysqlserver (if you use that one) optimization. Think about placing an mysql Instance on your Dspam Server so you never get a Problem with simultan connections. You have to use the Socket Address instead of Ip Address in that case. You have to know that you cannot simply raising up the Simultan connections since Mysql bind a Lot of Resources for each predefined Connection. Theres also a thing of Optimizing your Memory management on Mysql - but heres the angle. You cannot put a dspam database to an common mysql server because the settings for an optimal dspam database server normaly do not match the settings You need for an webserver for example. So its always better to have your mailserver instance (like for accounts and dspam) but not to much else. Keeps your management easier and you do not Slow down you Mysql host for other apps. You also gonna need a lot of ram for your key buffers if you wanna have a fast response time. If not you need a separate instance - otherwise dspam will fill up All your ram you might need elsewhere--- Means if you have enough ram you can run the mysql server on a shared instance but its not recommended. If you have not enough you need a separate. In that case you can save ram with giving lower buffers on dpsam (which cost response time for dpsam but on a mailserver it should doenst matter) Also think about the engine you might wanna use (I recommend myisam since I cannot see the need of transactions) BTW if difference between 7 and 20 gig discspace matters to you , consider to turf of quarantine anyway - it will not make you happy :-) Hope I could help a bit :-) -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Gesendet: Montag, 15. Februar 2010 11:50 An: [email protected] Betreff: Re: [Dspam-user] Poll about database sizes >> On Sunday 14 February 2010 12:25:40 Stevan Bajić wrote: >>> On Sun, 14 Feb 2010 11:49:20 +0000 >>> >>> KÄrlis Repsons <[email protected]> wrote: >>> > I know it depends on quite many factors in total, but anyway, could >>> we >>> > make a small list of values and info in here like this: >>> >>> what do you mean? We all here should submit our values? >> Presuming, that my variables list was sufficiently complete + >> significant >> to >> understand what total diskspace dspam can take up in what case -- yes! >> Otherwise correct it... >> Okay. In order to compute the size you need for the database you need to have the following numbers/figures: * Strategy of purging. How many days do you want to keep the data for users to allow them to retrain? (using SQL purging this would be 14 days) * Amount of INBOUND mail in bytes you get in the range of purge days. (using SQL purging this would be 14 days). * Count of INBOUND mails you get during the purge day range. (like above: 14 days is the default). * Tokenizer used in DSPAM. An example: * Purging daily keeping 14 days of signatures * Amount of INBOUND mails in 14 days: 14'680'064 bytes * Used tokenizer: OSB Now assume that the average word length is just 5 characters then those 14'680'064 bytes would result in +/- 2'446'678 words (this is 5 bytes for a word + one character for a word boundary = 6 bytes). Now assume that those 2.5 million words or words order would all be unique. Then this would result in: ( 2'446'678 - 5 ) * 4 = 9'786'692 tokens for OSB Now depending on what database schema you have, you could compute the total amount needed for the table "dspam_token_data" to hold those +/- 10 million tokens. The size needed for "dspam_signature_data" will be not more then the amount of INBOUND. Aka: 14GB This should give you a base number for your setup. And like every good system admin you should plan for the future. You sure have somewhere laying around statistical data about the grow you had in the past regarding INBOUND mail. Just use those numbers and compute what you expect for the near future and use those numbers to compute the needed storage for DSPAM. And to be on the sure side I would suggest you to multiply that number by 1.5 or 2.0 so that you have room for unexpected grow. That's how I would do that computation. Asking other here about how much space they use is not going to bring you big benefits. Every setup is different. The numbers I mentioned above are way, way, way to big. You usually don't have 100% new tokens for each and every message. But it's never bad to compute the worst possible scenario and use that as you absolute highest number then computing everything with to optimal values and then later realize that you need to upgrade your hardware. ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ Dspam-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspam-user
