Use the fsutil command to query or change the state of trim/unmap A DisableDeleteNotify value of 1 means that trim/unmap is disabled, and long format wait times are avoided when performing a quick format.Ĭhanging the state of DisableDeleteNotify does not require a host reboot to take effect.įigure 13. This setting is disabled using the fsutil command from a command prompt with administrator privileges.įigure 7 shows the commands to query the state and to disable trim/unmap for NTFS and ReFS volumes on a host. To avoid a long format wait time when mapping and formatting a large volume, temporarily disable trim/unmap. This case applies to volumes formatted as NTFS or ReFS. The larger the volume is, the longer the format wait time is, which is a common situation with external storage. With trim/unmap enabled (default setting in Windows Server), significant wait time occurs when formatting a PowerStore volume that is more than 1 TB.
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