You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
3.6 KiB
3.6 KiB
---------------------------------------------
Microsoft Volume Snapshot API Readme File
February 2000
---------------------------------------------
(c) Microsoft Corporation, 2000. All rights reserved.
This document provides late-breaking or other information that
supplements the Microsoft Volume Snapshot API documentation.
-------------------------
How to Use This Document
-------------------------
To view the Readme file on-screen in Windows Notepad,
maximize the Notepad window. On the Format menu, click Word
Wrap. To print the Readme file, open it in Notepad or
another word processor, and then use the Print command on
the File menu.
---------
CONTENTS
---------
Installing the SDK binaries
To install the SDK binaries, run the install.cmd script in
the bin\i386 directory. To un-install the SDK run uninst.cmd
in the same directory.
Creating a snapshot using the command-line utility
Using this SDK you can create snapshots only on FAT volumes.
Before creating the snapshot on a volume you must first
configure the diff area for that volume. See the "Moving a
Diff Area... " section below for details. After configuring
the diff area you can create a snapshot on that volume
by running vss_demo.exe. You should choose the default
values for vss_demo prompts excepting maybe for the
Volume Name prompt where you must put the mount point path
(terminated with backslash) for that volume, for example "F:\".
Beware that the created snapshots are lost after a reboot.
Example:
Z:\nt\drivers\storage\volsnap\vss\bin\i386>vss_demo
Snapshot Set creation succeeded.
GUID = {932ae8c4-1b97-4032-8062-0ab93fce92fc}
Add a volume to the snapshot set? [Y/n]
Attributes [0]:
Initial allocated size (Mb): [10]:
Volume name: ["G:\"]: F:\
Snapshot details: [""]:
A Volume Snapshot was succesfully added to the snapshot set.
The Volume Snapshot was succesfully configured.
Add a volume to the snapshot set? [Y/n] n
Commiting the snapshot(s)..
Allow partial commit? [Y/n]
Allow writers cancel? [y/N]
Ignore writer vetoes? [Y/n]
The snapshot(s) were succesfully created.
The properties of the snapshot #0 :
Id = {00000000-0000-0000-0000-000000000000},
SnapshotSetId = {00000000-0000-0000-0000-000000000000}
Volume = (null), DevObj = (null)
OriginalVolumeId = {00000000-0000-0000-0000-000000000000}
OriginalVolumeName = (null)
ProviderId = {00000000-0000-0000-0000-000000000000}
Details = NULL
Attributes = 0x00000000
Timestamp = 0x0000000000000000
Status = 0,0,0, Inc. No = 0x0000000000000000
Data Length = 0x00000000, Opaque Data = NULL
The name of snapshot #0 : \Device\HarddiskVolumeSnapshot3
Moving a Diff Area from the Default Location
To move a diff area from the default location to another
drive, execute the following commands from the command
line after each boot. Note that "F:" is the name of the
target drive for the snapshot and "G:" is the name of the
drive the diff area will be moved to. Also, the "F:" drive
must be FAT and the "G:" drive must be NTFS. Beware that
the diff area settings are lost after a reboot.
Example:
vsclrda F:
vsda F: G:
Using the sample writers
A writer is by definition an ordinary application that
can listen for snapshot-related events. For running the
command-line sample writer in this SDK you need only
to run tsub.exe in a command window. Then, in a separate
command window you must create a snapshot using vss_demo.
You will notice that the running tsub.exe gets notified
before and after a snapshot gets created.