Selection | View | Manage |
Memory | User, Power User, Administrator | Administrator |
Redundancy Status |
Indicates the health of the current redundant memory mode. Values
are Full and Lost.
Full indicates that a device may fail but the system
remains functional. This status is reported if the spare, mirroring, or
RAID5 is enabled but not in active use and all DIMMs have an OK
status.
Lost indicates that the system is not redundant, and
that an additional device failure will result in a system failure. This
status is reported if spare, mirroring, or RAID5 is enabled and is in
active use.
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Fail Over State |
Indicates if spare, mirroring, or RAID5 is currently in use. Values
are Active and Inactive.
Active indicates that the spare, mirroring, or RAID5 is
in use.
Inactive indicates that the spare, mirroring, or RAID5
is not in use.
If Fail Over State is Active,
Redundancy Status is Lost.
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Redundancy Configuration | Allows selection of the desired redundant memory mode, or disables redundant memory. |
Disabled | Indicates that the system is not to use other available memory modules if memory errors are detected. |
Spare | Disables the memory module that has a single-bit memory error and copies the failing module's data to a spare set. |
Mirroring
|
Switches the system to a mirrored copy of the memory if the failing module has a multibit error. In mirrored mode, the operating system does not switch back to the original module until the system reboots. |
RAID5 | A method of system memory configuration. This is logically similar to the RAID5 mode used in hard drive storage systems. This memory mode gives you an extra level of memory checking and error recovery, at the expense of some memory capacity. The RAID mode supported is RAID level 5 striping with rotational parity. |
DDDC |
The DDDC (Double Device Data Correction) mode option enables double device data correction. This ensures data availability after hard failure of x4 DRAM. |
Optimizer | When this mode is enabled, the DRAM controllers operate independently in 64-bit mode and provide optimized memory performance. |
Spare | When this mode is enabled, the available memory reported to the operating system does not include the spared memory. |
Mirroring
|
This mode switches the system to a mirrored copy of the memory if the failing module has a multibit error. In mirrored mode, the operating system does not switch back to the original module until the system reboots. |
Advanced ECC | When this mode is enabled, the two DRAM controllers are combined in 128-bit mode and provide optimized reliability. Memory that cannot be teamed by the controllers is not reported to the OS. |
Location | Indicates the place where the memory array resides, for example, on the system board, or in an expansion card such as Industry Standard Architecture (ISA), Extended ISA (EISA), or Peripheral Component Interconnect (PCI), NUBUS, or various types of PC-98 expansion cards. |
Use | Indicates the function to which this memory array is dedicated; for example, system memory, video memory, flash memory, nonvolatile RAM, or cache. |
Installed Capacity | Displays the amount of RAM that is presently installed in the system. |
Maximum Capacity | Displays the maximum RAM capacity of the system when all available sockets are occupied. |
Slots Available | Displays the total number of slots available in this memory array. |
Slots Used | Displays the number of slots that are populated with memory modules in this array. |
ECC Type | Identifies the ECC type that this memory can perform. For example, parity, single-bit, multibit, cyclic redundancy checking (CRC). |
Total Installed Capacity | Displays the total memory installed in the entire system. |
Total Installed Capacity Available to the OS | Displays the total memory installed and available to the operating system. |
Total Maximum Capacity | Displays the total memory that can be installed in the entire system when all memory slots are occupied. |
Status | Normal, Prefailure, or Failure performance of the memory module. |
Connector Name | The alphanumeric text that uniquely identifies each memory slot, whether occupied or unoccupied. |
Type |
The memory type on your system (like DDR3) will be reported
here.
Synchronous dynamic random access memory (SDRAM) chips operate
fast enough to synchronize with the CPU clock, eliminating wait states.
The SDRAM chip set has two cell blocks, allowing more efficient data
access. In dynamic random access memory (DRAM) each bit of storage is
built from a single transistor and capacitor, allowing more memory bits
to fit in the same chip set area. However, DRAM has to be refreshed
because the charge on the capacitor, which represents the stored bit
value, decays with time. During a refresh, the memory module must read
every bit and write it back at full strength.
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Size | Capacity of the memory slot, expressed in MB. |
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Prints a copy of the open window to your default printer. |
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Saves a text file containing the contents of this window (the values of each data field separated by a customizable delimiter) to a destination you specify. |
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E-mails the contents of this window to your designated recipient. See the Server Administrator User's Guide for instructions about configuring your Simple Mail Transfer Protocol (SMTP) server. |
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Updates the screen with latest information. |
Configure Memory Mode | Configures your system's memory operating mode. |
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Displays the online help for this page. |