I recently fired up BackupPC as a replacement for our convoluted and outdated Amanda setup to backup an environment of about 200 servers. So far, I have BackupPC version 3.1.0 installed on an Ubuntu 10.04 system. I'm using this to back up a grand total of three systems: 2 other Ubuntu machines and the localhost. Everything was running fine and dandy when I had all backup data going to local disk. However, I'm having massive performance issues after switching to an NFS mount for my backup data.
Per the instructions, I mounted /var/lib/backuppc to my NFS share. I'm using the following options: nfs.server.ourstuff.com:/backup/backuppc /var/lib/backuppc nfs nfsvers=3,tcp,hard,intr,rsize=32768,wsize=32768,bg These options were recommended to me by Data Domain, the manufacturer of the storage device containing my NFS mount. This device only supports CIFS and NFS, sadly. I have also tried with larger and smaller rsize/wsize, and noatime. Everything appears to be working correctly. I can backup and restore with no errors. However, the performance is worse than atrocious and I can't believe everything is working correctly. For example, when I'm in the web GUI, clicking on Host Summary when on localdisk took less than 1 second. Now, on NFS, clicking on Host SUmmary takes 4 minutes and 31 seconds to come up, and that's with only three hosts and a grand total of about 400MB of backup data. That can't be right, even with NFS's slower performance. Everything on the server indicates that resources are fine. The CPUs are sleeping, RAM is way below half occupied, loads of free local disk... I tried making an NFS mont on a different storage device and got the same results. This other storage device, which I can't use for backups, is capable of doing iSCSI, so I tried mounting the backup volume that way and everything was fantastic. Performed like local disk (less than a second to pull up the host summary page). So basically, it's definitely the fact that I'm mounting via NFS. If I can't resolve this problem, we'll have to abandon BackupPC. That breaks my heart, because I really like what I see so far. Any suggestions? Thank in advance! +---------------------------------------------------------------------- |This was sent by [email protected] via Backup Central. |Forward SPAM to [email protected]. +---------------------------------------------------------------------- ------------------------------------------------------------------------------ Benefiting from Server Virtualization: Beyond Initial Workload Consolidation -- Increasing the use of server virtualization is a top priority.Virtualization can reduce costs, simplify management, and improve application availability and disaster protection. Learn more about boosting the value of server virtualization. http://p.sf.net/sfu/vmware-sfdev2dev _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
