sDelete
Windows Server 2008 R2 and 2008 R2 (Service Pack 1) do not natively provide the capability to reclaim space. Microsoft has provided an alternative through a tool called sDelete. This tool can be downloaded from TechNet. After downloading and extracting the sDelete.zip file contents there is an sdelete and sdelete64.
If FlashArray utilization is high (80-90%), Garbage Collection (GC) will handle the space clean-up after host side deletion. Be aware that GC could take some time to complete.
sDelete is a command line utility that allows you to delete one or more files and/or directories, or to cleanse free space on a logical disk. sDelete accepts wild card characters as part of the directory or file specifier.
usage: sdelete [-p passes] [-s] [-q] <file or directory> ... sdelete [-p passes] [-z|-c] [drive letter] ...
-a Remove Read-Only attribute
-c Clean free space
-p passes Specifies number of overwrite passes (default is 1)
-q Don't print errors (Quiet)
-s or -r Recurse subdirectories
-z Zero free space (good for virtual disk optimization)When utilizing the -z option, a balloon file is generated. Please evaluate the space available before performing this option.
Example of this command:
PS C:\Users\Administrator\Downloads\SDelete> .\sdelete64.exe -p 1 -s -z D:
SDelete v2.0 - Secure file delete
Copyright (C) 1999-2016 Mark Russinovich
Sysinternals - www.sysinternals.com
SDelete is set for 1 pass.
Cleaning free space on D:\: 100%