I hadn't heard of this so I started Googling around. I ran across this: https://technet.microsoft.com/en-us/library/cc785435(v=ws.11).aspx Not GPO, but possibly done with PowerShell?
Paul -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Leone Sent: Thursday, February 02, 2017 9:02 AM To: [email protected] Subject: [NTSysADM] Best way to implement TRIM/UNMAP on Win 2008 So we're migrating our SAN storage from an EMC VNX to an all-flash XtremIO (ooh! ahhh! LOL). Anyway, EMC is telling us that all my hosts (a few physical, most VMs) really need to use the TRIM/UNMAP feature, to actually release deleted data, to reclaim space. My questions here are about Windows hosts and guests; I will get to the VMware part later (pretty sure I can release at the datastore level with a scheduled PowerCLI script). Win 2012 R2 has this enabled by default ("fsutil behavior query disabledeletenotify"). But apparently Win 2008 R2 does not. Older Windows versions does not include automatic UNMAP support. Third party tools can be used to reclaim space. https://kallesplayground.wordpress.com/2014/04/26/storage-reclamation-part-2-windows/ OK, fine. So I need to run a utility to do that. EMC recommends the "sdelete" utility from SysInternals. My questions: how best to do that on 80+ hosts, each of whom have multiple disks? sdelete only works locally, right? I can't point it at a host (sdlete \\that-host-there -z). So I guess I need some way to enumerate all the disks only on my Win 2008 boxes, and then run "sdelete -z <drive letter>" on it. I'm guess I will eventually need to do periodically, like as a scheduled task. Ideas, anyone?
