Compatibility

• ES1640dc/ES1640dc v2/ES1686dc

Important Notes

• SSD cache cannot be enabled on LUNs and shared folders in an all-flash storage pool.
• Deduplication can only be enabled on a shared folder or LUN if its "Performance Profile" is set to "VDI" or "Custom".
• For instructions on updating QES to the latest version, open the following link. https://preview.qnap.com/en/how-to/faq/article/my-nas-is-running-an-older-version-of-qes-can-i-update-to-the-latest-version-directly-what-sequence-should-i-follow-when-updating-qes
• For release note history, open the following link. https://www.qnap.com/en/releasenotes_qes/

New Features

• Added support for the following NAS model: ES1686dc.
• Added support for the Mellanox Connect-3 driver and the iSCSI Extensions for RDMA (iSER) protocol. iSER allows data to be transferred directly into and out of SCSI memory buffers with minimal CPU usage.
• Added support for SSD TRIM and UNMAP commands, to improve SSD performance.
• Added Predictive S.M.A.R.T. Migration. If S.M.A.R.T. errors are detected on a disk or if an SSD has exceeded its endurance limit, QES can automatically start migrating data from the disk to a spare disk.
• Added SSD Life. QES can monitor the remaining lifespan of solid-state drives.
• Added SSD Over-Provisioning. You can reserve space on SSDs to increase random write performance and extend SSD lifespan.
• Added Pool Over-Provisioning. You can reserve space in an all-flash storage pool to help ensure consistent random write performance when the pool is nearly full.
• Added LUN groups to help organize, manage, and back up LUNs more easily.
• Added Storage QoS (Quality of Service) to help manage the allocation of I/O within a storage pool.
• Storage Manager has a new user interface.

Enhancements

• Added support for QNAP QDA-SA SAS-to-SATA adapters.
• The QES web user interface now prevents you from entering a reserved port as the system port or service port, instead of allowing you to enter a reserved port and then displaying a warning message in a new window.
• Added support for SMTP server authentication when configuring email notifications.
• Improved the performance of real-time SnapSync.
• You can now specify an IPv6 IP address when adding a SnapSync host.
• Added an option to delete all snapshots to the command line interface.
• SnapSync now supports application consistent snapshots.
• The system connection logs can now record more shared folder events, such as file creation, modification, and deletion.
• You can use SSH with a 10GbE network interface.
• When configuring a static IPv4 or IPv6 address, the IP address field can now be left blank.
• QES now renames files with the same filename in the recycle bin, to prevent them from overwriting each other.
• You can now select the network speed when configuring an interface.
• You can access the QES web UI using a 10GbE network interface.
• Added support for the Windows file attributes "Hidden" and "Archive".
• Increased the maximum number of iSCSI sessions per iSCSI target from 64 to 256.
• Increased the maximum number of iSCSI sessions per NAS storage controller from 256 to 512.
• Added advanced system reset, which deletes all settings and reinitializes the system pool without erasing user data.
• Snapshot Manager now displays the size of each snapshot.
• You can now revert a mapped LUN without unmapping it first. QES automatically unmaps it before reverting and re-maps it after reverting has finished.

Other Changes

• The "@" character is no longer allowed in shared folder names.
• Change "Dedup Saving" to "Data Reduction" on the System Pool Info screen.