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CHAPTER 3 Component Configuration and Replacement (Add, Remove)
3.3 Replacing components
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C122-E175-01EN
Mirror RAS Mode
Mirror mode before
reboot (during
operation)
Places where the
DIMM has failed
Mirror
mode after reboot
Memory capacity
after reboot
Capacity Keep
Mode
Full Mirror
Mirror part
Partial Mirror or
Non-Mirror (*1)
No change (*1)
Partial Mirror
Mirror part
Partial Mirror or
Non-Mirror (*1)
No change (*1)
Non Mirror part
Partial Mirror (*1)
Reduction (*1)
*1: Switches to the Reserved SB when a Reserved SB has been set. Therefore, the system returns to the
status before the reboot.
Memory Mirror conditions
The conditions of Memory Mirroring are as follows.
The DIMM is mounted following the ‘G.2.1 DIMM mounting sequence’.
The condition for the hardware is to have the same capacity as that of the mirroring DIMM group.
Memory Mirroring
Memory Mirroring is executed in the memory on the same SB.
3.2.5 Hardware RAID
The PRIMEQUEST 2000 series supports Hardware RAID.
Hardware RAID is a RAID function that performs operations using the SAS array controller card. The SAS
array controller card is a PCI Express card having a dedicated RAID controller chip and firmware, and which
can control the array (faulty HDD disconnection, incorporation, LED control).
RAID levels supported in the hardware RAID are RAID0, RAID1, RAID5, RAID6, RAID1E, RAID10, RAID50,
and RAID60.
However, RAID level supported in the HDD/SSD on the SB and DU are RAID0, RAID1, RAID5, RAID6,
RAID1E, and RAID10.
For details on the hardware RAID setting, see ‘Server View RAID Management User Manual’. For details on
the HDD/SSD replacement of the hardware RAID configuration, see ‘5.3 Replacing HDD/SSD when active
replacement is not possible’.
Note
- -The hardware RAID and the Software RAID (GDS) are mutually exclusive in the same partition.
- -When using the hardware RAID, consider either of the following conditions to protect the customer’s data
in the event of a power failure.
- An FBU is mounted.
- Ensure stable AC power by redundant power mechanism, dual system reception mechanism, and UPS.
3.2.6 Server View RAID
For details on the Server View RAID, see ‘Server View RAID Management User Manual’.
3.2.7 Cluster configuration
- For inter-cabinet clustering, clustering with only PRIMEQUEST 2000 series is supported. The inter-
cabinet clustering with cabinets other than PRIMEQUEST 2000 series is not supported.
- For inter-cabinet clustering, clustering with only the same models is supported. The inter-cabinet
clustering with different models such as clustering with PQ2400E and PQ2800E is not supported.
3.3 Replacing components
Components to be replaced can be identified from the replacement board and OPL LED display. For details
on the LED display, see Appendix F Status Checks with LEDs.