15
Verifying the replacement
Use the following methods to verify that the drive is installed correctly:
•
Verify the drive properties (including capacity) by using one of the following methods:
Log in to HDM. For more information, see
H3C Servers HDM Online Help
.
Log in to OM. For more information, see the OM online help.
Access the BIOS. For more information, see the BIOS user guide for the server.
Access the CLI or GUI of the server.
•
Observe the drive LEDs to verify that the drive is operating correctly. For more information, see
"Appendix A Server specifications."
Replacing a mezzanine storage controller
For some storage controllers, you can order a power fail safeguard module to prevent data loss
when power outage occurs.
A power fail 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 becomes
Abnormal_status code
. You
can check the status code to identify the exception. For more information, see
H3C Servers
HDM Online Help
.
•
For an LSI storage controller, the status of the flash card of the power fail safeguard module
becomes
Abnormal
.
You can also review log messages from HDM to identify supercapacitor exceptions.
For the power fail safeguard module to take effect, replace the supercapacitor before its lifespan
expires.
The supercapacitor might have a low charge after the power fail 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 OM.
IMPORTANT:
After the supercapacitor replacement, verify that cache related settings are enabled for logical
drives. For more information, see
H3C Servers HDM Online Help
.
Use Table 4 to identify the compatible power fail safeguard module or supercapacitor of a storage
controller. For more information about storage controller connectors on the system board, see
"Appendix A Server specifications."
Table 4 Storage controllers and compatible power fail safeguard modules
Storage controller
Supported drives
Supported power fail
safeguard module
Embedded RSTe RAID controller
2 × embedded M.2
N/A
