On Wed, Nov 08, 2006 at 10:37:48AM -0500, John Drescher wrote: > On 11/8/06, Adam Huffman <[EMAIL PROTECTED]> wrote: > > > >What sort of backup speed should I expect when using Bacula with an > >LTO3 library? I'm seeing nothing like the advertised 60-80MB/s.
I'm seeing sustained rates in the 30MB/sec to 40MB/sec range, both when backing up the system that hosts the Bacula director, storage manager, and Postgres database, as well as when backing up gigabit-connected servers. > This 60-80MB/s is the drive speed and only if your data gets a 2 to 1 > compression rate as the drive writes natively at around 40MB/s. The Quantum spec sheet at http://www.quantum.com/ServiceandSupport/SoftwareandDocumentationDownloads/LTO-3Drives/Index.aspx is a bit more optimistic, claiming: Native Sustained Transfer Rate up to 245 GB per hour Compressed Sustained Transfer Rate up to 324 GB per hour or 68MB/sec "native", and 90MB/sec compressed. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
