From: Christopher D. <cm...@uc...> - 2009-01-28 16:09:49
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Just as a baseline for interested users, I'm listing a few of my machines that are backed up with BackupPC, the amount of data, and the speed. My BackupPC box is RAID5, XFS, 3 TB volume, Ubuntu 8.10, 7200 RPM Seagate ES 1 TB drives, 8 GB of memory, dual Opteron 2216HE processors (2.4 GHz) with a Gigabit connection to the network. All connections are over rsync. Ubuntu Web/Plone Server on same Gb switch: Full Size: 13.9 GB Speed: 15.51 MB/s Time for full backup: 14.9 mins Type of data: Zope database dump, website files, config files Core2Duo 2.4 GHz processor, 4 GB memory Slackware File Server on nearby Gb switch: Full Size: 182.97 GB Speed: 23.16 MB/s Time for full backup: 140 mins (3 hrs, 20 mins) Type of data: user files, but also some larger files Windows 2003 R2 fileserver across Gb backbone with data store on Gb iSCSI connection Full Size: 812.3 GB Speed: 8.47 MB/s Time for full backup: 1600 mins (26.7 hours) Type of data: user files, many small files Dual 3 GHz Xeon processors, 2 GB memory Windows Vista SP1 Workstation on 100 Mb Full Size: 40.57 GB Speed: 15.51 MB/s Time for full backup: 48 mins Type of data: user files, many small files Core2Duo 2.4 GHz, 2 GB memory Windows 2000 SP4 Server on Gb Full Size: 12.62 GB Speed: 17.73 MB/s Time for full backup: 11.9 mins Type of data: MS SQL dump, some smaller files Windows XP SP3 Workstation on 100 Mb Full Size: 13.29 GB Speed: 2.91 MB/s Time for full backup: 76 mins (1 hour, 16 mins) Type of data: user files, many small files Single 2 GHz processor, 1 GB memory workstation Windows XP SP3 Workstation on 100 Mb Full Size: 7.65 GB Speed: 6.56 MB/s Time for full backup: 15 mins Type of data: user files, many small files Core2Duo 2.4 GHz processor, 1 GB memory workstation In general, the Windows XP workstations almost double their speed with the dual core processors. All Linux/Unix servers are markedly faster than Windows servers. The Vista workstation is surprisingly fast compared to all other Windows XP boxes. Type of data does seem to matter, as well as processor speed and memory of clients (I see other XP workstations with the same specs as the last one in my list but more memory that have faster backups and not much varies in terms of types of data). Your network is not my network so please take these numbers as generic baselines and not true benchmarks. Chris -- Christopher Derr . IT Dept of Land, Air, & Water Resources (LAWR) University of California, Davis O: 530-752-2148 . E: cm...@uc... |