Dell PowerStore 3000T EMC PowerStore Host Configuration Guide - Page 28

Creating a File System

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NOTE: Setting the host's operating system is required for optimal interoperability and stability of the host with PowerStore storage. You can adjust the setting while the host is online and connected to the PowerStore cluster with no I/O impact. NOTE: Refer to the PowerStore User Guide that matches the version running on your PowerStore cluster. Creating a File System This topic discusses creating a file system. File system configuration and management are out of the scope of this document. NOTE: Some file systems may require you to properly-align the file system on the PowerStore volume. It is recommended to use specified tools to optimally match your host with application requirements. NOTE: Creating a file system formatting with UNMAP enabled on a host connected to PowerStore may result in an increased amount of write I/Os to the storage subsystem. It is highly recommended to disable UNMAP during file system creation. To disable UNMAP during file system creation: 1. Open a Windows CMD window on the host. 2. Run the following fsutil command to temporarily disable UNMAP on the host (prior to file system creation): fsutil behavior set DisableDeleteNotify 1 3. Once file system creation is complete, re-enable UNMAP by running the following command: fsutil behavior set DisableDeleteNotify 0 NOTE: To verify the current setting of the file system, run the following fsutil command: fsutil behavior query DisableDeleteNotify • DisableDeleteNotify=0 - Indicates that the 'Trim and Unmap' feature is on (enabled). • DisableDeleteNotify=1 - Indicates that the 'Trim and Unmap' feature is off (disabled). 28 Host Configuration for Microsoft Windows

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NOTE:
Setting the host’s operating system is required for optimal interoperability and stability of the host with
PowerStore storage. You can adjust the setting while the host is online and connected to the PowerStore cluster with
no I/O impact.
NOTE:
Refer to the
PowerStore User Guide
that matches the version running on your PowerStore cluster.
Creating a File System
This topic discusses creating a file system.
File system configuration and management are out of the scope of this document.
NOTE:
Some file systems may require you to properly-align the file system on the PowerStore volume. It is
recommended to use specified tools to optimally match your host with application requirements.
NOTE:
Creating a file system formatting with UNMAP enabled on a host connected to PowerStore may result in an
increased amount of write I/Os to the storage subsystem. It is highly recommended to disable UNMAP during file
system creation.
To disable UNMAP during file system creation:
1.
Open a Windows CMD window on the host.
2.
Run the following
fsutil
command to temporarily disable UNMAP on the host (prior to file system creation):
fsutil behavior set DisableDeleteNotify 1
3.
Once file system creation is complete, re-enable UNMAP by running the following command:
fsutil behavior set DisableDeleteNotify 0
NOTE:
To verify the current setting of the file system, run the following
fsutil
command:
fsutil behavior query DisableDeleteNotify
•
DisableDeleteNotify=0
- Indicates that the 'Trim and Unmap' feature is on (enabled).
•
DisableDeleteNotify=1
- Indicates that the 'Trim and Unmap' feature is off (disabled).
28
Host Configuration for Microsoft Windows