EWF System Requirements (Standard 7 SP1)
7/8/2014
Before you deploy an EWF-protected run-time image, make sure that the system meets the following requirements.
Partitioning Requirements for EWF Setup
For EWF RAM mode, verify that the disk on which you configure Enhanced Write Filter (EWF) has no more than three primary partitions. During the EWF installer phase, EWF creates an EWF volume on the media. Disks are limited to a total of four primary partitions. If you are using logical partitions, free space for EWF must be contained within the extended partition.
Verify that there is at least 8 MB of available space in one of the following areas:Immediately after a primary partition
In an extended partition
Note
EWF creates the EWF volume in an extended partition, even if there is space at the end of the disk outside the extended partition.
This space is not required if you are using RAM REG mode.
For more information about EWF volumes, see EWF Volume Configuration.Keep your disk partition configurations simple. Complex disk partitioning can sometimes prevent EWF from setting up correctly. Whenever possible, use a single disk that has a single primary partition on it when you configure EWF for the first time.
EWF Media Requirements
- EWF does not protect dynamic disks. All protected volumes must be configured as basic disks.
- You cannot create an EWF volume on media that is marked as removable, such as CompactFlash. Some CompactFlash manufacturers provide utilities to mark the media as fixed. This lets you create an EWF volume. Optionally, you can use EWF RAM Reg mode to bypass the requirement for an EWF volume. For more information, see Configure EWF RAM Reg Mode.