#WINDOWS SHADOW COPY SPACE REQUIREMENTS WINDOWS#

Why Should I Configure VSS in My Deployment? They are also fast and easy to recover directly from Windows. Shadow Copies are 'differential, block-level backups', meaning they only capture the changed bits of each file and so do not require a lot of storage space. You enable and schedule Shadow Copies on a disk, and you can then restore a file, folder, or the entire volume.

#WINDOWS SHADOW COPY SPACE REQUIREMENTS WINDOWS#

One implementation of VSS is the Shadow Copies feature in Windows Server (called Restore Points in client versions of Windows). This allows Windows (or the application) to perform backup operations against the disk without worrying about changes that may occur while the backup is running. Volume Shadow Copy Service (VSS) is a feature in Microsoft Windows that allows the OS or applications to periodically take 'point-in-time snapshots' of an entire disk without locking the filesystem. itopia WorkAnywhere automates the provisioning of Microsoft Windows Virtual Machines (VMs) in the Google Cloud, customers can take advantage of a number of Microsoft technologies and tools. © 2000-2004 Microsoft Corporation, all rights reserved.

For additional information about monitoring and managing replicas, shadow copies, and synchronization jobs, see the ' Monitoring DPM' chapter in the Microsoft ® System Center Data Protection Manager 2006 Operations Guide at.

Or, see 'Understanding data protection' in DPM Help.

For an overview of how data protection works in DPM, see the ' Introducing DPM' in the Microsoft ® System Center Data Protection Manager 2006 Planning and Deployment Guide.

For information about a specific synchronization job, review the job details in the Monitoring task area of DPM Administrator Console.

Identify and resolve issues related to specific synchronization failures.

For information about analyzing trends in synchronization jobs, see 'Synchronization Report' in DPM Help. For information, generate a Synchronization Report.

Investigate the pattern of synchronization job failures.

To resolve shadow copy failures related to synchronization failures For information, see 'How to synchronize a replica' in DPM Help.

If a 'Replica is inconsistent' alert exists, you must synchronize the replica with consistency check.

In DPM Administrator Console, on the Alerts tab in the Monitoring task area, check for a 'Replica is inconsistent' alert.

To resolve shadow copy job failures related to an inconsistent replica

For more information, see 'How to modify disk allocation' in DPM Help. You should increase the disk space allocated for the replica. In the Disk Utilization Report, if the 'Disk Used' size is nearly as large as the 'Disk Allocated' size, the space allocated for the replica and shadow copy volumes is nearly full.For more information, see 'Disk Utilization Report' in DPM Help at. To get data on disk usage, generate a Disk Utilization Report. If there is no 'Disk threshold exceeded' alert, compare the disk space used to the disk space allocated for the associated replica and shadow copies.If a 'Disk threshold exceeded' alert exists, review the details and perform the recommended action.In the Monitoring task area of DPM Administrator Console, click the Alerts tab, and check for a 'Disk threshold exceeded' alert.To resolve shadow copy job failures related to disk space Review the alert details in DPM Administrator Console, determine why shadow copy jobs are failing, and take the appropriate action. A shadow copy is only created if the replica has changed since the last shadow copy. When synchronization fails for a replica, the subsequent shadow copy job also fails. Synchronization failures also cause shadow copy failures. Shadow copy job failures can be caused by issues with Volume Shadow Copy Service (VSS), by insufficient disk space allocated in the storage pool, and by an inconsistent replica. DPM automatically resolves this alert when the failure rate of shadow copy jobs drops below 20 percent.

This rate of shadow copy job failures could compromise protection of your data. This alert is generated in Data Protection Manager (DPM) when more than 20 percent of the shadow copy jobs attempted for the specified volume during the past two weeks have failed.

Windows shadow copy space requirements