Home Forums SQL Server 2005 Backups Backup speed depending on whether file already exists RE: Backup speed depending on whether file already exists

  • Thanks for the reply Lynn. I've used HyperBac at a previous employer myself and found it to both reduce backup size and backup time with no problems. What size backups were you generating to produce those errors?

    My figures are rounded a little, but not significantly. Backup times are taken from the backup job run time and the read/write rates are taken from a perfmon I have running collecting (amongst others) disk reads/sec on the data volume and disk writes/sec on the backup volume.

    I've found (via CrystalDiskMark) that the data volume is capable of sequential reads up to 190 MBps and the backup volume 115 MBps - so HyperBac compression should get me down to about 35 minutes before we go near tuning the SAN, surely?