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Data deleted from the host end on the LUN, still shows full in backend devices
Hi Folks,
I have Windows and Solaris SPARC operating system which is connected to the VMAX storage.
When i deleted / formatted the volumes in the host end, still the space utilization in the backend symmetrix shows fully allocated and the written tracks present in the volumes (backend).
I know when i unbind the volumes, it will be freed up. Would like to know is their any other option which i can use to delete the data from the host end itself and free up the tracks in the back-end?
Cheers,
Paul
Mich
86 Posts
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February 19th, 2014 22:00
Hi Paul, you need an Operating System that supports zeroing tracks that have been deleted. Windows 2012 supports this "Thin provsioning and TRIM", but previous versions of Windows do not.
http://technet.microsoft.com/en-us/library/hh831391.aspx
Similarly with Solaris, you would need a version that supports this.
Regards, Michel.