31
Embedded VROC controllers
Item
Specifications
Type
Embedded in PCH of the system board
Number of internal ports
12 internal SAS ports (compatible with SATA)
Connectors
•
One onboard ×8 SlimSAS connector
•
Four onboard ×4 SlimSAS connectors
Drive interface
6 Gbps SATA 3.0
Supports drive hot swapping
PCIe interface
PCIe3.0 ×4
RAID levels
0, 1, 5, 10
Built-in cache memory
N/A
Built-in flash
N/A
Powerfail safeguard module
Not supported
Firmware upgrade
Upgrade with the BIOS
Standard storage controllers
For more information, use the component compatibility lookup tool at
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.
