HP ProLiant DL380 G5 Server - Manual (Page 40)

• POST ECC Errors—Indicates that write cache operations have been permanently disabled. The cache has been
disabled due to a large number of ECC errors detected while testing the cache during the Power On Self Test
(POST).
• Battery Hot Removed—Indicates that write cache operations have been permanently disabled. The cache has
been disabled because a battery has been hot removed.
• Unknown—The Storage Agents do not recognize the error code. You may need to update your software.
• Serial Number—Displays the serial number for the Array Accelerator. Use this number for identification
purposes.
• Total Memory—Displays the total amount of accelerator memory, including both battery-backed and non-battery-
backed memory.
• Write Cache—Displays the percentage of cache memory allocated for posted write caching or the amount of
memory allocated for the write cache. If the amount of memory is displayed then the actual usable memory is
half the amount shown because the data is kept in duplicate (mirrored).
• Read Cache—Displays the percentage of cache memory allocated for read ahead caching or the amount of
memory allocated for the read cache. If the amount of memory is displayed then the actual usable memory is
half the amount shown because the data is kept in duplicate (mirrored).
NOTE: Read cache is not available on IDA-2 or SCSI Managed Array Technology (SMART) controllers.
Values for these controllers will be zero.
• 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's expectations, a parity error has occurred.
• Read Errors—Displays the total number of read memory parity errors that were detected while reading from the
Array Accelerator. The mirrored copy of data in the write cache can be accessed to obtain correct data if a
memory parity error occurs.
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's expectations, a
parity error has occurred. A bad memory chip, memory corruption, or lack of memory refresh may cause
memory parity errors.
Identify Drives
Select the length of time to identify the physical drives that are connected to this controller from the drop-down list box
and then click the Start button. The page automatically refreshes and displays an image of an identified drive and a
Stop button. Click the Stop button to end identification before the time expires.
After the drive identification completes, the page must be refreshed manually to display the Start button. There may
be a delay, depending on the length of the HP Insight Management Agents data collection interval, after the drive
identification completes and before the Start button appears.
Only drives in hot plug trays are supported since the LEDs are part of the tray. If an individual logical drive or
physical drive on this controller is selected while the drives connected to this controller are currently identified, the
other drives stop identification and only the selected drive are identified.
When there are redundant controllers only the active controller can be used to identify the drives connected to the
controller.
IMPORTANT: The Start or Stop button only displays if you are logged on as an administrator or an operator,
SNMP Sets are enabled, and a SNMP Community string has been defined with 'write' access. Go back to the
Summary page and select login to login as an administrator or operator. SNMP Sets can be enabled in the HP
Insight Management Agents control panel applet on the SNMP Settings page. A SNMP Community string with
'write' access can be defined in the SNMP Service Properties Security page located in Computer Management
under Services. The drive icon does not blink in Microsoft Internet Explorer unless Play animations in web
pages is enabled in the Tools menu Internet Options under the Advanced tab in the Multimedia section.
Agent information 40