Identifying the storage area
To store the shadow copies of another volume on the same file server, a volume can be dedicated on separate disks. For example, if user files are stored on H:\, another volume such as S:\ can be used to store the shadow copies. Using a separate volume on separate disks provides better performance and is recommended for heavily used StoreEasy 1000 Storage systems.
If a separate volume will be used for the storage area (where shadow copies are stored), the maximum size must be changed to No Limit to reflect the space available on the storage area volume instead of the source volume (where the user files are stored).
Disk space for shadow copies can be allocated on either the same volume as the source files or a different volume. There is a trade-off between ease of use and maintenance versus performance and reliability that the system administrator must consider.
By keeping the shadow copy on the same volume, there is a potential gain in ease of setup and maintenance; however, there may be a reduction in performance and reliability.
If shadow copies are stored on the same volume as the user files, note that a burst of disk input/output (I/O) can cause all shadow copies to be deleted. If the sudden deletion of shadow copies is unacceptable to administrators or end users, it is best to use a separate volume on separate disks to store shadow copies.