2012/1/31 Rao, Uthra R. (GSFC-672.0)[ADNET SYSTEMS INC] <uthra.r....@nasa.gov>: > I have Bacula 5.2.3 compiled on a RHEL 6 Server. I have IBM TS3200 Tape > Library with two tape drives: LTO5 FH. I looking to see how I can get the > best performance and speed up my backups > > > > I checked with IBM and was told that my tape drives support a maximum block > size of 256k. > > > > My understanding is the default block size in Bacula is 64k > > > > When I do : > > > > # tapeinfo -f /dev/sg0 > > Product Type: Tape Drive > > Vendor ID: 'IBM ' > > Product ID: 'ULT3580-TD5 ' > > Revision: 'B5BF' > > Attached Changer API: No > > SerialNumber: '1068007095' > > MinBlock: 1 > > MaxBlock: 16777215 > > SCSI ID: 0 > > SCSI LUN: 0 > > Ready: yes > > BufferedMode: yes > > Medium Type: 0x58 > > Density Code: 0x58 > > BlockSize: 0 > > DataCompEnabled: yes > > DataCompCapable: yes > > DataDeCompEnabled: yes > > CompType: 0x1 > > DeCompType: 0x1 > > BOP: yes > > Block Position: 0 > > Partition 0 Remaining Kbytes: -1 > > Partition 0 Size in Kbytes: -1 > > ActivePartition: 0 > > EarlyWarningSize: 0 > > NumPartitions: 0 > > MaxPartitions: 1 > > > > I added the min/max block size in the Bacula-sd.conf “Device” section: > > Minimum Block Size = 262144 > > Maximum Block Size = 262144 > > > > This really did not make any difference the “tapeinfo -f /dev/sg0” still > shows the BlockSize:0 and MinBlock: 1/ MaxBlock: 16777215. > > > > Has any ne out there done some Bacula tuning with the block size? I would > really appreciate some help on this. >
Did you erase the tape after the change? John ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
