3.4 Release Notes

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3.4 Release Notes

Updated: 2026-08-17

1. Overview

UniSpace is an easy-to-use, secure, and reliable data protection software product launched by Anhui Yuanshuo Technology Co., Ltd. The product version released this time is UniSpace 3.4, released on 2026-08-17. This version introduces a series of new features and improvements designed to enhance user experience and strengthen data protection capabilities.

2. Features

Workflow

UniSpace 3.4 supports graphical workflow customization and the following workflow nodes:

Select a backup set to trigger backup

Select a copy to trigger copy

Trigger recovery through a job template

Execute custom scripts

Send email

Execute multiple jobs in parallel
Job Verification

UniSpace 3.4 supports verification of completed jobs. Users can manually select jobs for verification, or create scheduled plans to verify all jobs under a copy or verify only newly added jobs.

UniSpace 3.4 supports different verification levels:

Quick verification checks only the job records in management-node metadata, the volume list on the storage device, and block index files, without reading backup data.

Deep verification includes everything in quick verification and also reads the backup data and verifies CRC.
Operational Audit

UniSpace 3.4 supports operational audit. This feature records user operations performed in the UI. In the current version, the audit scope includes user management, storage pools, service plans, and operations on backup objects, including clients, instances, and backup sets.
Reporting

UniSpace 3.4 supports reporting. This feature is used for data aggregation and information display, provides quantitative support for monitoring and data analysis, and helps users make decisions.

Two report templates are provided by default. Users can also create custom reports on the page and write SQL statements to query the required information.
Deduplication

UniSpace 3.4 deduplication supports all agent types in the current version.

UniSpace 3.4 supports status statistics for the deduplication repository.

NEW: UniSpace 3.4 supports verification of deduplication repository data. The verification levels differ:

Quick verification reads the volume index files in the storage pool associated with the deduplication repository, resolves the addresses of the actual volume data blocks they reference, and checks whether the blocks exist.

Deep verification reads the volume index files in the storage pool associated with the deduplication repository, resolves the addresses of the actual volume data blocks they reference, reads the data blocks, calculates CRC and hash values, and compares them with the records in the deduplication repository.

NEW: UniSpace 3.4 supports sparse files (hole punching) for backup storage. Only local file systems are supported.

NEW: UniSpace 3.4 supports archiving and moving deduplication repositories.

Other

UniSpace 3.4 supports cloning service plans, copy groups, plan groups, and copy policies.

UniSpace 3.4 supports configuring operation windows by resource group. Backup jobs are allowed to run during the configured window, while jobs outside the window are queued and wait.

UniSpace 3.4 optimizes operation-window management for stream resources.

UniSpace 3.4 supports client readiness checks and service restart. Users can select a client or storage node on the page to check whether the UniSpace service is running normally at the OS level, or restart the service as needed.

UniSpace 3.4 supports Single Sign-On (SSO) login via AD/LDAP/OpenID and Multi-Factor Authentication (MFA) using Google Authenticator.

UniSpace 3.4 supports configuring data compression at the backup-set level. Whether the final backup job is compressed depends on the combination of backup-set and copy settings.

Backup Set Setting	Copy Setting	Backup Job Result
Compressed	Not Compressed	Not Compressed
Not Compressed	Not Compressed	Not Compressed
Compressed	Compressed	Compressed
Not Compressed	Compressed	Not Compressed

NEW: UniSpace 3.4 supports storage-node load balancing, including storage-path selection and automatic failover.

NEW: UniSpace 3.4 supports email alerts. Users can define alert conditions such as job failures, storage thresholds, and storage-node offline events.

NEW: UniSpace 3.4 supports online configuration management, including online modification of client configurations and ports.

NEW: UniSpace 3.4 optimizes service plans and copies, supporting manual job retention, selective copying, default-copy switching, associating copy plans with copies, and managing backup sets in service plans.

File System

UniSpace 3.4 supports file system backup and recovery on Linux platforms. Supported file systems include ext3, ext4, and xfs.

UniSpace 3.4 supports file system backup and recovery on Windows Server platforms. Supported operating systems are Windows Server 2019 and later, and supported file systems include NTFS, FAT, and exFAT.

Backup supports full backup and incremental backup. Recovery supports local recovery, cross-machine recovery, data-only recovery, and recovery of both data and ACLs.

Supports restoring files from selected job backups directly by job ID without browsing.

Supports online browsing of directory structures and files on clients. When configuring a client, users can view objects without logging in to the operating system, eliminating the need to manually enter the full path.

Client logs can be viewed online and downloaded.

NEW: UniSpace 3.4 supports resumable file backup. If the scan phase is stopped and resumed, the files are scanned again; if the backup phase is stopped and resumed, it restarts from the last failed file.

Notes:
1. Cross-platform recovery is not supported yet.
2. File backup recovery from Windows to Linux is not supported yet.
3. File backup recovery from Linux to Windows is not supported yet.
Databases

UniSpace 3.4 supports pre-scripts and post-scripts for database-type agents.

NEW: OceanBase

UniSpace 3.4 supports backup and recovery of OceanBase 4.2.5 databases. OceanBase backup supports full and log backups. Distributed and centralized deployments are supported. Log archive paths support NFS and S3. Backups do not depend on OCP.

Recovery supports local recovery, cross-machine recovery, log recovery, and recovery of databases and logs to disk files.

Note: Incremental backup is not supported yet.

MySQL

UniSpace 3.4 supports backup and recovery of MySQL databases and supports MySQL 8.0.x. MySQL backup supports mysqldump and XtraBackup. It supports incremental backup and recovery for MySQL XtraBackup, and supports restoring full-instance XtraBackup backups to a specified point in time.

Recovery supports local recovery, cross-machine recovery, log recovery, and recovery of databases and logs to disk files.

Supports MySQL cluster management, including one-primary-one-replica and one-primary-multiple-replicas architectures, and supports priority settings. Primary/replica switchover is transparent and does not affect backup.

Supports restoring only specified databases from full-instance MySQL XtraBackup backups.

PostgreSQL

UniSpace 3.4 supports backup and recovery of PostgreSQL 12.x and later. PostgreSQL backup supports Dump export and basebackup. It supports PostgreSQL primary/standby replication architecture and standby-node backup. Log backup is supported only on the primary node.

Recovery supports local recovery, cross-machine recovery, and recovery to disk files.

KingBase

UniSpace 3.4 supports backup and recovery of KingBase 9.x databases. KingBase backup supports Dump export and full-instance physical backup. It supports primary/standby replication architecture and standby-node backup. Log backup is supported only on the primary node.

Recovery supports local recovery, cross-machine recovery, and recovery to disk files.

HighGo DB

UniSpace 3.4 supports backup and recovery of HighGo DB databases. HighGo DB backup supports Dump export and full-instance physical backup. It supports primary/standby replication architecture and standby-node backup. Log backup is supported only on the primary node.

Recovery supports local recovery, cross-machine recovery, and recovery to disk files.

DM (Dameng)

UniSpace 3.4 supports backup and recovery of DM8 databases. Dameng backup supports full backup, incremental backup, and archive log backup. It supports backup for primary/standby replication architecture, read/write separation architecture, and DSC architecture. It also supports backing up these architectures in virtual-machine-cluster mode, selecting backup from either the primary or standby node through page configuration, and setting node priorities and the number of concurrent streams.

Recovery supports local recovery, cross-machine recovery, log recovery, redirected recovery, point-in-time recovery, and specified LSN recovery. It also supports restoring databases and logs to disk files.

Oracle

UniSpace 3.4 supports backup and recovery of Oracle 19c and later databases. Oracle backup supports full backup, incremental backup, and archive log backup. It supports backup for standalone architecture, RAC architecture, and replication cluster architecture. Oracle RAC supports parallel backup of one or more nodes in the cluster.

Recovery supports local recovery, cross-machine recovery, log recovery, redirected recovery, point-in-time recovery, and specified SCN recovery. It also supports restoring databases and logs to disk files.

KingWow

UniSpace 3.4 supports backup and recovery of KingWow databases. KingWow backup supports online backup and backs up MG, TG, and DG data. It supports full and incremental backup.

UniSpace 3.4 supports backup and recovery for the KingWow KG version.

Recovery supports local recovery, cross-machine recovery, and recovery to a specified time point or the latest time point.

Halo

UniSpace 3.4 supports backup and recovery of Halo databases. Halo backup supports the Dump backup method.

Recovery supports local recovery, cross-machine recovery, and recovery to disk files.

MS SQLServer

UniSpace 3.4 supports backup and recovery of MS SQLServer 2019 and later. It supports full backup, differential backup, and log backup and recovery.

Notes:

Supports Standard and Enterprise editions of MS SQLServer 2019 and later, but not Express edition.
Only Windows is supported; Linux is not supported yet.

GoldenDB

UniSpace 3.4 supports backup and recovery of Golden V6.1.x databases, including centralized and distributed deployments. It supports backup of metadata, the seq_backup_dir directory on GTM nodes, the active_file_directory for active transactions, and backup-node data and logs for all shards. Supported backup scenarios include combinations of metadata, shard data (all shards or specified shards), and logs.

Recovery supports instance recovery and shard recovery, with support for no rollback or rollback to a specified point in time. It supports local recovery, cross-machine recovery, and recovery to disk files. Cross-machine recovery is not supported for shards. Instance recovery supports the following combinations: data only, metadata only, or data plus metadata. Specified shard recovery supports recovery only to the original cluster and original instance, and recovery only to a standby node.

Supports complex deployment structures and multi-port architecture on a GoldenDB single-node server.

YashanDB

UniSpace 3.4 supports backup and recovery of YashanDB 23.x. Backup and recovery are based on XBSA. It supports full backup, incremental backup, and log backup.

Recovery supports local recovery and cross-machine recovery, and supports no rollback and rollback to a specified point in time. It also supports restoring full and incremental data to disk.

TDSQL

UniSpace 3.4 supports backup and recovery of centralized TDSQL 10.x (MySQL). Backups can run on either the primary or standby node, and support full backup, incremental backup, and binlog backup.

Recovery supports local recovery and cross-machine recovery, and supports no rollback and rollback to a specified point in time. It also supports restoring full and incremental data to disk.

UniSpace 3.4 supports backup and recovery of distributed TDSQL. It supports backup of full instances, shards, and logs, and supports restoring data to a TDSQL cluster or to disk.

GBase 8s

UniSpace 3.4 supports backup and recovery of GBase 8s and supports standalone backup.