Enterprise Data Services Community Blog
1 MIN READ
Performance tuning keys for VMware backups and restores
AshutoshTamhank
12 years agoLevel 4
The size of the read and write buffers used for the VWware API (VDDK) by Backup Exec can be tuned using the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\Engine\VMware Agent
"Enable Buffered Reads"=dword:00000001
"Number of Read Buffers"=dword:00000004
"Size of Read Buffers"=dword:00000400
"Enable Buffered Writes"=dword:00000001
"Number of Write Buffers"=dword:00000004
"Size of Write Buffers"=dword:00000400
If you are looking at tuning performance of your backups generally, recommend you to go through the Backup Exec 2012 performance tuning guide:
The actual size of the write operation during a backup job can be verified using Procmon. Filter the output of Procmon to entries from beremote.exe with writefile operations with the details column showing the actual length of the write operation. Additionally the VMWare Agent backups can be debugged.
Published 12 years ago
Version 1.0AshutoshTamhank
Level 4
Joined March 06, 2009
Enterprise Data Services Community Blog
Enterprise Data Services Community Blog is the perfect place to share short, timely insights including product tips, news and other information relevant to the community.