Hp Insight Management Agents User Manual download pdf (Page 73)

◦ 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

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.

• Total Memory displays the total amount of accelerator memory in megabytes, including both

battery-backed and non battery-backed memory.

• Write Cache displays the amount of memory allocated for the write cache in megabytes. The

actual amount of usable memory is half the amount shown because data is kept in duplicate

(mirrored).

• Read Cache displays the memory allocated for the read cache in megabytes.

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