Cancel the MAPPING of Windows volumes?

I don't know about scsi unmap command for vmfs recover space on a LUN EQ. Is there an equivalent for Windows data volumes connected via iscsi?

Hello

On Dell PS Series San, you must run EQL FW, 6.x or higher and the volume cannot be set up for EQL replication.  It is as well rep SYNC and async rep.

Much depends on the version of Windows that you're talking about.  Windows 2008 R2 and do NOT naively support UNMAP.   It does support the SSD TRIM command.  However, if you install the printer Dell HIT / ME software he installs a driver to modify the order ADJUST order cancel the MAPPING on the fly to Dell PS volumes.   This applies to volumes that are DIRECTLY related to the EQL volume via the MS iSCSI host initiator.  A virtual machine on a VMFS partition is not supported by HIT / ME software.

Windows 2K 8 and CSV de Hyper-V R2 volumes does not support UNMAP.  This is a MS issue, unrelated to the table.   Volumes Windows 2012 and R2 CSV can bear UNMAP only when you use virtual disks VHDX, if using the recovery of old VHD is not taken in charge.

An additional advantage of HIT / ME in all cases taken in charge, is through the crib of Snapshot Auto GUI, you can force recovery anytime option.

Note: If you are using snapshots, you can not immediately retrieve the expected amount of rear space.  The snapshot can always refer to this data, so until the snapshots that reference is deleted it will be allocated.

Kind regards

Don

Tags: Dell Products

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