> Date: Thu, 07 Jun 2007 21:33:57 -0400 > From: Ryan Novosielski <[EMAIL PROTECTED]> > Subject: Re: [Bacula-users] Hardware recommendations > To: bacula-users@lists.sourceforge.net > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1"
> Message was signed with unknown key 0xD11CB1BE. > The validity of the signature cannot be verified. > I'm using a Sun UE450 with 3x296MHz and 896MB of RAM. However, the > maximum simultaneous number of backups I'm doing is 8, and probably my > total aggregate amount of data is less than 100GB for all of the systems > together. > There was some information on the list relatively recently about > optimizing MySQL memory usage, or perhaps making it act somewhat > differently to running out of memory. > AFAIK, as well, newer versions of bacula are slated to handle this > problem better as well. I personally would be somewhat surprised if 2G > of RAM on a dedicated machine were too little. I've never tried watching > my machine while backups were running, but it seems to me Bacula is > fairly lightweight most of the time. Yes, Bacula is rather light weight in memory usage, and in addition, does pretty much minimal copying of data within a daemon. E.g. in the FD, then data is read into a buffer then transmitted to the SD in the same buffer. In the SD, the data comes into a buffer then is copied into a block which is written directly to the tape (unless spooling is enabled). Typical memory usage for the Director is about 100-120K per Job for a backup regardless of the number of files or size of the data involved. However, there was a bug in the MySQL driver that could cause Bacula to lose memory after running a lot of jobs. Even with the memory leak, I had no problem running 80 simultaneous jobs. The MySQL driver memory leak is fixed in the current BETA version. MySQL/PostgreSQL server memory usage is another story typically controlled by their respective conf/ini files. > Joseph Wright wrote: > > I'd like to find out what kind of hardware configurations people are > > using for their director. I plan to be backing up 50 or more clients > > with ~250G of data each on a dedicated director with 2G RAM and a > > 120G SATA drive. I had an issue one night where the director shut > > down with an out of memory error after the backup jobs started, with > > only 20 clients. I've since backed off the number of clients and am > > adding them back in more slowly, as well as distributing the startup > > times so they don't all start at once. But I'd like to find out if > > people think my hardware is adequate for the task and it would be > > interesting to know what others are using. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
