D-Link DGS-3120-24TC Product Manual - Page 270

xStack® DGS-3120 Series Managed Switch Web UI Reference Guide Offset In Minutes DST offset - 30, 60, 90, or 120 minutes. Time Zone Offset From GMT In +/HH:MM Use these pull-down menus to specify your local time zone's offset from Greenwich Mean Time (GMT.) Parameter Description DST Repeating Settings From: Which Week Of The Month From: Day Of Week From: Month From: Time In HH:MM To: Which Week Of The Month To: Day Of Week To: Month To: Time In HH:MM Using repeating mode will enable DST seasonal time adjustment. Repeating mode requires that the DST beginning and ending date be specified using a formula. For example, specify to begin DST on Saturday during the second week of April and end DST on Sunday during the last week of October. Enter the week of the month that DST will start. Enter the day of the week that DST will start on. Enter the month DST will start on. Enter the time of day that DST will start on. Enter the week of the month the DST will end. Enter the day of the week that DST will end. Enter the month that DST will end. Enter the time DST will end. Parameter Description DST Annual Settings Using annual mode will enable DST seasonal time adjustment. Annual mode requires that the DST beginning and ending date be specified concisely. For example, specify to begin DST on April 3 and end DST on October 14. From: Month Enter the month DST will start on, each year. From: Day Enter the day of the month DST will start on, each year. From: Time In HH:MM Enter the time of day DST will start on, each year. To: Month Enter the month DST will end on, each year. To: Day Enter the day of the month DST will end on, each year. To: Time In HH:MM Enter the time of day that DST will end on, each year. Click the Apply button to accept the changes made. Flash File System Settings Why use flash file system: In old switch system, the firmware, configuration and log information are saved in a flash with fixed addresses and size. This means that the maximum configuration file can only be 2Mb, and even if the current configuration is only 40Kb, it will still take up 2Mb of flash storage space. The configuration file number and firmware numbers are also fixed. A compatible issue will occur in the event that the configuration file or firmware size exceeds the originally designed size. Flash File System in our system: The Flash File System is used to provide the user with flexible file operation on the Flash. All the firmware, configuration information and system log information are stored in the Flash as files. This means that the Flash space taken up by all the files are not fixed, it is the real file size. If the Flash space is enough, the user could download more configuration files or firmware files and use commands to display Flash file information, rename file names, and delete it. Furthermore, the user can also configure the boot up runtime image or the running configuration file if needed. 262