![]() The Diff Area is the storage space that Shadow Copies of Shared Folders allocates on a volume for maintaining the snapshots of the contents of shared folders. The total diff area on a system is configured by the shadow copy storage space setting and is often set at 10% of the volume to be shadow copied. 64-bit systems support 128 GB of paged pool memory.įor every 16 KB of diff area on a system, VSS consumes about 40 bytes of virtual memory on the system. This limitation is significant only on 32-bit systems, which may have a maximum paged pool memory of 650 MB. There are several ways to reduce resource usage which will be covered in these helpful links and the body of this document. Microsoft has provided a document titled “Scalability Factors for Shadow Copies” to cover this topic. The limitation of available paged/non-paged pool memory in a 32 bit system is noted by Microsoft. Since Replay uses the VSS technology, when our backup runs, the same constraints exist. Microsoft has identified resource challenges for Exchange 2003 on Windows 32 bit OS when Microsoft Volume Shadow Copy Service (VSS) is creating and/or holding open a volume snapshot. Storage Performance and Utilization Management.Information Archiving & Storage Management.Hybrid Active Directory Security and Governance.Starling Identity Analytics & Risk Intelligence.One Identity Safeguard for Privileged Passwords.
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