Applicable Products
- QuTS hero h5.3.0 or later
- High Availability Manager
Scenario
When creating an HA cluster, the system syncs all data from the active node to the passive node. If the active node contains a large amount of data, the initial synchronization process may take a long time, especially if network, storage, or system resources are limited.
Solution
To reduce the initial synchronization time, you can take the following actions before you create the HA cluster:
- Use a high-speed network interface for the heartbeat connection
- Ensure you choose the interface with the highest bandwidth on both nodes for the heartbeat connection.
We recommend a minimum speed of 10 GbE. - Use a matching high-performance network cable connected directly between the two nodes.
Do not use any intermediary switches for the heartbeat connection.
- Use high-performance disks
- Use high-performance HDDs or SSDs to increase the data transfer speed.
- If the NAS model supports SSD cache, enable SSD cache to accelerate read/write operations during the synchronization.
- Enable data reduction features on shared folders
- Enabling data reduction features such as compression and deduplication on your shared folders can significantly reduce the amount of stored data in these folders, thereby also reducing synchronization time.
Important
- Changes to the compression and deduplication settings only affect newly added files. Existing files are not affected.
- To apply compression and deduplication to existing files, move the files to another shared folder with compression and deduplication already enabled.
- To enable data reduction settings on a shared folder, see Configuring compression and deduplication.
- Ensure at least 8 GB of free space in each storage pool
- Initial synchronization requires additional space for metadata and differential data.
- Before creating the cluster, remove unnecessary data (such as temporarily files or unused backup data) to reduce used space on the active node.
- Reduce NAS system load during synchronization
- The initial synchronization process can heavily consume CPU and memory resources. Avoid running other resource-intensive tasks at the same time.
- Pause unnecessary background applications, scheduled jobs, or heavy access activities to ensure stable performance during the initial synchronization.
Further Reading
适用产品
- QuTS hero h5.3.0 or later
- High Availability Manager
场景
在创建 HA 群集时，系统会将所有数据从活动节点同步到被动节点。如果活动节点包含大量数据，初始同步过程可能需要较长时间，尤其是在网络、存储或系统资源有限的情况下。
解决方案
为了减少初始同步时间，您可以在创建 HA 群集之前采取以下措施：
- 使用高速网络接口进行心跳连接
- 确保在两个节点上选择带宽较高的接口进行心跳连接。
我们建议较低速度为 10 GbE。 - 使用匹配的高性能网络电缆直接连接两个节点。
不要使用任何中间交换机进行心跳连接。
- 使用高性能磁盘
- 使用高性能 HDD 或 SSD 以提高数据传输速度。
- 如果 NAS 型号支持 SSD 缓存，启用 SSD 缓存以加速同步期间的读写操作。
- 在共享文件夹上启用数据缩减功能
- 在共享文件夹上启用压缩和重复数据删除等数据缩减功能可以减少这些文件夹中存储的数据量，从而也减少同步时间。
重要提示
- 对压缩和重复数据删除设置的更改仅影响新添加的文件。现有文件不受影响。
- 要将压缩和重复数据删除应用于现有文件，请将文件移动到已启用压缩和重复数据删除的另一个共享文件夹。
- 要在共享文件夹上启用数据缩减设置，请参见配置压缩和重复数据删除。
- 确保每个存储池中至少有 8 GB 的可用空间
- 初始同步需要额外的空间用于元数据和差异数据。
- 在创建群集之前，删除不必要的数据（如临时文件或未使用的备份数据）以减少活动节点上的已用空间。
- 在同步期间减少 NAS 系统负载
- 初始同步过程可能会大量消耗 CPU 和内存资源。避免同时运行其他资源密集型任务。
- 暂停不必要的后台应用程序、计划任务或繁重的访问活动，以确保初始同步期间的稳定性能。
进一步阅读
