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arcserve-KB : P00000602 | 17.0| Backup speed drops after upgrade to r17

Last Update: 2017-10-31 09:17:34 UTC Problem Summary:
After upgrade from r16.5 to r17, backup speed drops dramatically 
for a job that contains virtual machines and physical machines. The
following message will be found in agent job log:

"Set Last Access time of file [XXXX] to be NOW".




Products Affected:
Arcserve Backup17;

Product Installation Instructions:
Problem resolution:

This fix require ARCServe Backup 17.0 to be installed.

1. Unzip  P00000602.zip

2. Launch P00000602.exe

3.To achieve the best performance, VSS option needs to be checked in registry on each node to be backed up that has Windows client agent installed. 

(a). If the node is a Vmware VM, VSS needs to be disabled in registry with settings:
 
HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCserve Backup\ClientAgent\Parameters
Value Name	: UseVssForSystemVolume
Value 		: 0  

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ComputerAssociates\CA ARCServe Backup\Backup Agent for Open Files\Parameters
Value name:	UseVssForOpenFiles
Value:		0

HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCServe Backup\ClientAgent\Parameters
Value name:	UseVssForOpenFiles
Value:		0
   

(2). If the node is a physical machine or HyperV VM, VSS needs to be enabled with settings


HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCserve Backup\ClientAgent\Parameters
Value Name	: UseVssForSystemVolume
Value 		: 1

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ComputerAssociates\CA ARCServe Backup\Backup Agent for Open Files\Parameters
Value name:	UseVssForOpenFiles
Value:		1

HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\CA ARCServe Backup\ClientAgent\Parameters
Value name:	UseVssForOpenFiles
Value:		1

(3). If the parameter "UseVssForSystemVolume" does not exist in registry, VSS is enabled by default.


This patch contains T00000291, P00000291, T00000413, T00000560, T00000589 and T00000602. 


Related Fix List:
Fix (P00000602 for product: Arcserve Backup release: 17) is available please click here to download and apply.
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