Release Notes for DSMUC

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

Bug Fixes

1. Fixed multiple security vulnerabilities (Synology-SA-24:20).
2. Enhanced overall stability of None-Transparent Bridge (NTB).

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

What's New

1. Supports creating volumes up to 200TB in size.

Bug Fixes

1. Supports creating volumes up to 200TB in size.
2. Enhanced overall stability of external network adapters.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

Bug Fixes

1. Fixed an issue that prevented the SSD cache size from exceeding 12 TB.
2. Optimized the system memory allocation during system startup.
3. Improved the system stability under I/O intensive workloads.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

What's New

1. Storage Manager now supports the firmware update of Synology HDDs and SSDs.

Bug Fixes

1. Fixed a security vulnerability (CVE-2021-29088).
2. Fixed an issue where the Resource Monitor might not accurately show the latency information of LUNs.
3. Fixed an issue where replication tasks may fail when syncing large amounts of replicated data.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

Bug Fixes

1. Fixed a security vulnerability regarding OpenSSL (CVE-2021-3712).
2. Fixed an issue where iSCSI services may be disconnected when the iSCSI connection was set on a Link Aggregation interface with MTU value 9000.
3. Fixed an issue where the datastores on the LUNs that are mapped to the targets may not be mounted properly after user reconnected iSCSI targets from VMware ESXi hosts.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
2. This update includes a fix to an issue found in 3.1-23028 where the I/O operation might fail when the system was performing hardware accelerated copy.
3. When you reconnect to iSCSI targets from your VMware ESXi hosts after the DSM update, the datastores on the LUNs that are mapped to the targets may not be mounted properly. This only happens to LUNs created before the update. The resolution can be found in VMware Knowledge Base.

What's New

1. SAN Manager is the successor of iSCSI Manager, offering centralized management for iSCSI and Fibre Channel services.
2. Added support for the Fibre Channel protocol to provide high performance and stable storage for your SAN environments.
3. Added the Space Reclamation schedule for you to decide when or when not to reclaim the space from deleted data.
4. Reduced the impact on I/O performance during Space Reclamation.
5. Greatly reduced the time needed to initialize Thick Provisioned LUNs after creation.
6. The new LED indicator behavior makes the system status easier to distinguish.

Important Note

1. This update is recalled on May 5, 2021.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

What’s New

1. Enhanced system stability when processing snapshot/replication tasks and I/O intensive operations at the same time.

Bug Fixes

1. Fixed an issue where the controllers might not be able to restart after unexpected shutdowns or failures.

Important Note

1. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.

What's New

1. I/O Mode of LUNs are now automatically configured by the system based on the drive type.
2. Optimized the performance of the volumes created on hard disk drives.
3. Optimized the efficiency of replicating snapshots to a remote destination.
4. Enhanced the data integrity during a system failover.
5. Enhanced the system stability during intensive I/O workloads.

Fixed Issues

1. Fixed the issue where VMware might not clone virtual machines properly.
2. Fixed the issue where Cluster Shared Volumes (CSV) on Hyper-V might lose the attribute of Persistent Reservations and result in errors after a system failover.
3. Minor bug fixes.

Fixed bugs

1. Fixed the issue where system configurations could not be successfully synced between the two controllers when the DNS server cannot be resolved.