...

Works with at least 2GHz, 4 core or higher x86/x64 compatible processor.

Memory

...

System memory

We recommend a minimum of 4 GB of system memory, with at least 30% of physical memory usage free. This is because, although it depends on the kernel, 70% of physical memory per resource is recommended for use as a memory buffer for replication.usage is typically the point at which the operating system will trigger paging to respond to a memory shortage. If paging is triggered on your system, you may experience system-wide I/O degradation, so you should consider this.

Memory buffer size

The memory buffer for replication is used to buffer the I/O load locally, and its size is basically obtained by the following formula

• Size of the maximum bandwidth transferred per time (in seconds) * Timeout time (in seconds)

For 1 Gbps, you can get about 100 MB/s * 5 s = 500 MB, and you should be comfortable with 500 MB to 1 GB.

If you need to consider the fluctuating bandwidth of the WAN section, DRX buffering with DRX integration responds to WAN bottlenecks. If you don't have DRX integration, allocate a larger memory buffer size (5-10x the memory buffer) and consider configuring it as a file buffer if memory is not available (see below).

Disk

The default installation size such as is 2 GB, including installation files and log files is 2GB, and a hard disk capacity of 10GB or more is required per resource for the file if you configure a filebuffer, you'll need additional space of that size.

File buffer size

File buffer is a feature that allows you to use regular files for buffering purposes. However, using a file buffer involves file I/O to write to the buffer, which may result in performance degradation compared to traditional local I/O.

File buffers can be sized to fit your needs, and are typically sized between 5 and 10 times the size of a memory buffer.

How it works

• It is based on active-passive clustering operation.
• Supports one-way replication from primary to secondary nodes. Operating methods such as circular mirroring and dual primary mode are not supported.
• Asynchronous replication is supported, but synchronous replication is not supported.

...