使用ESXi vRDM无法回收LUN上的空间
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适用场景
- ONTAP 9
- SAN
- VMware ESXi
- 虚拟兼容性中的RDM (vRDM)
- Windows Server 2022
问题描述
- VMware ESXi上的Windows Server子操作系统、其中iSCSI LUN与 vRDM连接
- ONTAP LUN已启用
space-allocation、但在Windows中删除文件不会影响ONTAP中显示的已用空间 - Windows已 启用删除通知：
fsutil behavior query DisableDeleteNotifyNTFS DisableDeleteNotify = 0 (Allows TRIM operations to be sent to the storage device)ReFS DisableDeleteNotify = 0 (Allows TRIM operations to be sent to the storage device)- ONTAP不接收
unmap_reqs：
statistics show -sample-id lun_12Object: lunInstance: /vol/vol_12/lun_12Start-time: 8/22/2024 14:39:49End-time: 8/23/2024 11:04:07Elapsed-time: 73458sScope: iscsi_01Number of Constituents: 2 (complete_aggregation)Counter Value-------------------------------- --------------------------------unmap_error_to_good_count 0unmap_reqs 0unmap_too_big_error_count 0unmap_too_many_error_count 04 entries were displayed.