User`s guide

Synology DiskStation User's Guide
Based on DSM 4.1
165 Chapter 18: Perform Advanced Management Tasks
 Memory: The overall memory usage of physical memory and swap space will be shown. Memory usage
remains high because the system stores frequently accessed data in cache, so the data can be quickly
obtained without accessing the hard disk. Cache memory will be released when overall memory is insufficient.
 Disk: You can choose to view the overall disk utilization, transfer rate or IOPS by clicking the drop-down menu
at the top of the chart. You can click View All at the bottom to select more disks by ticking the checkboxes to
add their data to the chart.
 Network: The network flow chart displays the data sent and received rate in KB per second. If PPPoE is
enabled, its transfer rate will also show up on the chart.
Process
Click on Process tab to view the CPU and memory usage of each process in the order of decreasing CPU load.
Advanced Settings
Click on Advanced Settings tab to set up additional options.
To change the time duration of real time display:
Choose the
Real time duration in minutes from the drop-down menu.
To enable usage history:
Tick
Enable usage history if you want to view previous data. When it is enabled, you can switch between Real
Time, 1 Day, 1 Week, 1 Month
and 1 Year from the drop-down menu at the top-right corner when viewing
performance charts.
Update DSM
Go to Main Menu > Control Panel > DSM Update to keep your Synology DiskStation up to date.
Important: The data saved on the Synology DiskStation will not be erased during the updating process. However, for
security reason, we strongly recommend that you back up the data first.