Echelon SmartServer 2.2 - Manual (Page 104)

SmartServer 2.2 User’s Guide 105
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General Statistics This section lists the current usage and recommended limits (where
applicable) for the SmartServer’s flash memory usage, CPU utilization,
data point message failures, and time of last refresh.
For more information on how the SmartServer uses flash memory, see the
next section, Using the SmartServer Flash Memory.
Flash Disk Activity:
Moving Average The long term moving average of the number of flash block erases/minute
(using a two day sliding window). When this value exceeds the
recommended limit (78 erases/minute), the value will be shown in red and
a warning message will be displayed at the top of the Web page.
Flash Disk Activity:
Last 3 Minutes The number of flash disk erases/minute over the last 3 minutes.
Flash Disk Activity:
Last 1 hour The number of flash disk erases/minute over the last 1 hour.
Flash Disk Activity:
Since Startup The number of flash disk erases/minute since the SmartServer was last
rebooted.
Spare Flash
Blocks The number of available spare flash blocks remaining. Initially, the
SmartServer hardware contains up to 94 spare flash blocks that are used to
accommodate block failures. However, it is normal for a small number of
flash blocks to initially be marked as failed by the flash manufacturer, and
additional blocks may fail after extended use, so the number of available
spare blocks on your SmartServer may vary. This does not adversely
affect the normal operation of the flash disk, as long as some spare blocks
are available.
When the number of spare flash blocks falls below the recommended limit
(18 blocks), this value will be shown in red and a warning message will be
displayed at the top of the Web page. If a flash block on the SmartServer
fails and there are no spare blocks remaining, the flash disk may become
unreliable. The SmartServer should be replaced before this happens.
Free Disk
Space/Total Disk
Space The current available disk space, and the total possible disk space in the
SmartServer (in KB). The SmartServer hardware has a 64MB flash disk,
and initially has approximately 28 MB of free disk space. If you go below
the recommended limit of 1,024KB of free disk space, this value will
appear in red and a warning message will appear at the top of the Web
page.