Powerfail Safeguard Modules - H3C UniServer R6900 G6 Technology White Paper


Standard storage controller—Comes in a standard PCIe form factor and typically requires a
riser card for installation.
Embedded VROC controllers
Item
Type
Number of internal ports
Connectors
Drive interface
PCIe interface
RAID levels
Built-in cache memory
Built-in flash
Powerfail safeguard module
Firmware upgrade
Standard storage controllers
For more
http://www.h3c.com/en/home/qr/default.htm?id=66.

Powerfail safeguard modules

For some storage controllers, you can order a powerfail safeguard module to prevent data loss when
power outage occurs.
A powerfail safeguard module provides a flash card and a supercapacitor. When a system power
failure occurs, this supercapacitor can provide power for a minimum of 20 seconds. During this
interval, the storage controller transfers data from DDR memory to the flash card, where the data
remains indefinitely or until the controller retrieves the data.
A supercapacitor has a lifespan of 3 to 5 years. If the lifespan of a supercapacitor expires, a
supercapacitor exception might occur. The system notifies users of supercapacitor exceptions by
using the following methods:

For a PMC storage controller, the status of the flash card will become Abnormal_status code.
You can check the status code to identify the exception. For more information, see HDM2 online
help.

For an LSI storage controller, the status of the flash card of the powerfail safeguard module will
become Abnormal.
You can also review log messages from HDM2 to identify supercapacitor exceptions.
For the powerfail safeguard module to take effect, replace the supercapacitor before its lifespan
expires.
The supercapacitor might have a low charge after the powerfail safeguard module is installed or after
the server is powered up. If the system displays that the supercapacitor has low charge, no action is
required. The system will charge the supercapacitor automatically. You can view the status of the
supercapacitor from HDM or the BIOS.
Specifications
Embedded in PCH of the system board
10 internal SAS ports (compatible with SATA)
Two onboard ×4 SlimSAS connectors and one Genz connector
6 Gbps SATA 3.0
Supports drive hot swapping
PCIe3.0 ×4
0, 1, 5, 10
N/A
N/A
Not supported
Upgrade with the BIOS
information, use the component
44
compatibility lookup tool at