On 3/20/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Hi, > > I would like to use bacula for backup, but the observed perfomance is > not good enough for our use case. > The backup-server running Director, SD and FD (version 1.38.11 on > Debian unstable) is an AMD Athlon(tm) XP 1500+ with 1 GB of ram. > It reads the files via Gbit-ethernet from an NFS-share. > The storage device is an autochanger-library with an HP Ultrium-3 > tape drive, which is attached to the server via an Adaptec > AIC-7892A U160/m-SCSI-card. > > The problem is, that Bacula in a test run gives a rate of upto 18MB/s > with a single large file served from NFS. Backing up approx. 7,5 > million files with a total size of 920GB brings down the rate to > approx. 6MB/s (md5 signatures and no spooling). > I can hardly estimate if this is good or bad. > > Well, I know, that a rate of 6 MB/s is to slow by a factor of 3 to 4 > for our goal of backing up 1-1.5TB in less than 20hours. > > I'm sure, that I should upgrade the hardware to get more performance, > but before doing so, I would like to hear from others, > what hardware they use for backup, how their setup is and which > backup rates they achieve. > > We have a dual processor opteron 246 with 4 GB of memory serving as the director (main file server with 3TB of raid 6) and a second dual processor opteron 246 with 4GB of memory that is the bacula-sd connected to a 2 drive LTO2 autochanger. Our postgresql database is on a third box Athlon64 3200 with 2GB of memory. We use spooling on all jovs that do not originate from the director. Our backup rates vary depending of the type and the source but 18MB/s is typical for a full backup from the director that gets a compression rate of around 1.5:1. All the servers and nearly all the clinents are gigabit. The bacula-sd and teh data base servers also have multiple roles as the bacula-sd has over 1TB of raid 5 and runs 4 virtual machines and the data base server also runs an ldap server.
John ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
