SnapRaid-ShadowCopy

Powershell-script for updating shadow copies and using shadow copy to do sync instead of current state

Two main reasons for using this are:

Files in use can be synchronised
Removed files still exists in shadow copy, providing higher chance of success in case of disk failure

ShadowCopy>vss642008.exe

SHADOW.EXE 3.0 - Volume Shadow Copy sample client.
opyright (C) 2005 Microsoft Corporation. All rights reserved.


sage:
  VSHADOW [optional flags] [commands]

ist of optional flags:
 -?                 - Displays the usage screen
 -p                 - Manages persistent shadow copies
 -nw                - Manages no-writer shadow copies
 -nar               - Creates shadow copies with no auto-recovery
 -tr                - Creates TxF-recovered shadow copies
 -ad                - Creates differential HW shadow copies
 -ap                - Creates plex HW shadow copies
 -scsf              - Creates Shadow Copies for Shared Folders (Client Accessible)
 -t={file.xml}      - Transportable shadow set. Generates also the backup components doc.
 -bc={file.xml}     - Generates the backup components doc for non-transportable shadow set.
 -wi={Writer Name}  - Verify that a writer/component is included
 -wx={Writer Name}  - Exclude a writer/component from set creation or restore
 -mask              - BreakSnapshotSetEx flag: Mask shadow copy luns from system on break.
 -rw                - BreakSnapshotSetEx flag: Make shadow copy luns read-write on break.
 -forcerevert       - BreakSnapshotSetEx flag: Complete operation only if all disk signatures revertab
e.
 -norevert          - BreakSnapshotSetEx flag: Do not revert disk signatures.
 -script={file.cmd} - SETVAR script creation
 -exec={command}    - Custom command executed after shadow creation, import or between break and make-
t-write
 -wait              - Wait before program termination or between shadow set break and make-it-write
 -tracing           - Runs VSHADOW.EXE with enhanced diagnostics

ist of commands:
 {volume list}      - Creates a shadow set on these volumes
 -ws                - List writer status
 -wm                - List writer summary metadata
 -wm2               - List writer detailed metadata
 -q                 - List all shadow copies in the system
 -qx={SnapSetID}    - List all shadow copies in this set
 -s={SnapID}        - List the shadow copy with the given ID
 -da                - Deletes all shadow copies in the system
 -do={volume}       - Deletes the oldest shadow of the specified volume
 -dx={SnapSetID}    - Deletes all shadow copies in this set
 -ds={SnapID}       - Deletes this shadow copy
 -i={file.xml}      - Transportable shadow copy import
 -b={SnapSetID}     - Break the given shadow set into read-only volumes
 -bw={SnapSetID}    - Break the shadow set into writable volumes
 -bex={SnapSetID}   - Break using BreakSnapshotSetEx and flags, see options for available flags
 -el={SnapID},dir   - Expose the shadow copy as a mount point
 -el={SnapID},drive - Expose the shadow copy as a drive letter
 -er={SnapID},share - Expose the shadow copy as a network share
 -er={SnapID},share,path - Expose a child directory from the shadow copy as a share
 -r={file.xml}      - Restore based on a previously-generated Backup Components document
 -rs={file.xml}     - Simulated restore based on a previously-generated Backup Components doc
 -revert={SnapID}   - Revert a volume to the specified shadow copy

xamples:

- Non-persistent shadow copy creation on C: and D:
    VSHADOW C: E:

- Persistent shadow copy creation on C: (with no writers)
    VSHADOW -p -nw C:

- Transportable shadow copy creation on X:
    VSHADOW -t=file1.xml X:

- Transportable shadow copy import
    VSHADOW -i=file1.xml

- List all shadow copies in the system:
    VSHADOW -q

lease see the README.DOC file for more details.