HP Insight Management Agents - Manual (Page 69)

Accelerator Information
This section displays the following information about fibre array controllers that are installed in a
storage system.
•
Status displays the status of the Fibre Channel Array Accelerator (FCAA). The status can be
one of the following:
◦ Enabled - Cache operations are currently configured and enabled for at least one logical
drive.
◦ Temporarily Disabled - Cache operations have been temporarily disabled. Check the
Array Accelerator Error Code for the monitored item to determine why the cache operations
have been temporarily disabled.
◦ Permanently Disabled - operations have been permanently disabled. Check the Array
Accelerator Error Code for the monitored item to determine why the cache operations
have been permanently disabled.
◦ Unavailable - An Array Accelerator has not been configured.
•
Battery Status displays the status of the battery pack on the Array Accelerator. The battery
pack can recharge only when the system is powered on. The status can be one of the following:
◦ OK - The battery pack is fully charged.
◦ Failed - The battery pack is below a sufficient voltage level and has not fully recharged
within the maximum 36 hours. Your board should be serviced as soon as possible.
◦ Charging - The battery power is less than 75%. The array controller is attempting to
recharge the battery pack. A battery pack can take as long as 36 hours to fully recharge.
If the battery pack has not recharged after 36 hours, it is considered failed.
◦ Degraded - The battery pack is still operating but one of the batteries in the pack has
failed to recharge properly. Your board should be serviced as soon as possible.
◦ Not Present - The battery pack is not present. (Some controllers do not have a battery
backed cache.)
•
Bad Data indicates possible data loss due to a battery problem when the system was powered
on. The following values are valid:
◦ Possible - At power on, the battery pack was not sufficiently charged. The Array Accelerator
has not retained any data that may have been stored in the cache because the battery
pack did not retain sufficient charge when the system resumed power. If no data was in
the cache, no data was lost. Several situations may have caused this condition, including
the following:
◦ None - No data loss occurred. At power on, the battery pack was properly charged.
•
Read Errors displays the total number of read memory parity errors that were detected while
reading from the Array Accelerator. If a memory parity error occurs, the mirrored copy of
data in the write cache can be accessed to obtain correct data.
Memory parity errors occur when the system detects that information has not been transferred
correctly. A parity bit is included for each byte of information stored in memory. When the
microprocessor reads or writes data, the system counts the value of the bits in each byte. If
the total does not match the system value, a parity error occurs. A bad memory chip, memory
corruption, or lack of memory refresh may cause memory parity errors.
•
Write Errors displays the total number of write memory parity errors that were detected while
writing to the Array Accelerator.
Write parity errors occur when the system detects that information has not been transferred
to the Array Accelerator correctly. A parity bit is included for each byte of information stored
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