Slow performace from BKExec 2012 to DeDuplicated Disk
We've just moved to BKExec 2012 from 2010. Fully removing then installing the software from scratch.
We have two BKExec servers at different sites, both the same hardware spec, Windows 2008 X64 R2, SP1 with 32 GB memory.
Our deduplication area is hosted on or Equalogic SAN connected by the LAN direct to the Backup Exec Server.
The problem we are having is that backup are slow, especially exchange. Backing up a 171gb information store took almost 8 hours and failed reporting '-1022 There is a disk IO error'
The backups speeds initially build up to around 900MB/s, but soon fall down to 390MB/s.
Backing up a file server (1.5TB) took 32 hours at a rate of 778MB/s
Performance wise, network on both server (backup and target) is never higher than 25% for both the network and san links. Memory usage is about 40% with cpu hardly being used.
With the file server, we have F-Secure, but we ran a pre and post job command to stop this from scanning while the backup was running.
Windows and BackUp Exec are both fully up to date.
Any help on this would be greatly received.