HP IO Accelerator for BladeSystem c-Class - Manual (Page 25)

Device page 25
Click More Information to display a list of other important directCache information, such as Read Sector and
Requests, how many Hits and Misses of each, and how many reads were rejected due to infrequent use.
Live tab
The Live tab lets you monitor important information for one or several devices in real time. The Live tab
displays IOPS Read/Write when Operations is selected, MB/Second when Data is selected, and
Temperature and Reserve Space. Select Data or Operations using the large button above the graph.
The Live tab also displays information for PBW Endurance.
Reports tab (Device Page)
The Reports tab shows from three to five history graphs for a single device: Operations, Data & Endurance,
Temperature, Cache Hit Requests, and Cache Latency. Cache Hit Requests and Cache Latency are available
only when the device is being used as a cache. Enter start and end dates in the menus above the graph to
show data for different dates.
• Operations—Click to display IOPS. The selected button is highlighted. Operations displays the average
Read and Write hits as the amount of IOPS.
• Data & Endurance—Displays the Average Read and Write hits in Bytes per second.
Each device has a PBW Rating. The device warranty is based on this PBW Rating.
When Data & Endurance is selected, the following message appears above the graph: Future
performance based on this date range suggests X PBW Usage Warranty will last
for more than X years.
If the date range selected is not an accurate representation of the anticipated future performance of the
device, you can modify the date range to include data that better represents future behavior and
thereby include a better prediction of the warranty expiration.
• Temperature—The data shows you how temperature changes over time over days or throughout a day.
• Cache Hit Requests—This charts the percent of read requests that were serviced from the cache.
• Cache Latency—The graph shows Cache Latency for Read Hits, Read Misses, and Read Average.
Info tab
The Info tab provides details about a single device, including recent alerts.
The Info tab also shows adapter Information, such as kind of board (single or duo), the serial number, and
PCIe Bus voltage, current, power, and bandwidth.
The directCache part of the page is the same page that is displayed when you click the More Details... link
in the Configure tab.