1
Configuring an LSI-9540 or 9560 series
storage controller
The BIOS screens might vary by the BIOS version. The screenshots in this chapter are for
illustration only.
About LSI-9540 or 9560 series storage
controllers
The storage controllers provide a maximum interface rate of 12 Gbps, and some storage controllers
support caching, which greatly increases performance and data security. For more information
about storage controller details and the supported cache, access
http://www.h3c.com/en/home/qr/default.htm?id=66
.
This chapter is applicable to the following storage controllers:
RAID-LSI-9560-LP-16i-8GB
RAID-LSI-9560-LP-8i-4GB
HBA-LSI-9540-LP-8i
Features
RAID levels
The supported RAID levels vary by storage controller model. For more information about the
supported RAID levels of each storage controller, contact Technical Support.
Table 1 shows the minimum number of drives required by each RAID level and the maximum
number of failed drives supported by each RAID level. For more information about RAID levels, see
"Appendix B RAID arrays and fault tolerance."
Table 1 RAID levels and the numbers of drives for each RAID level
RAID 0 1 0
RAID 1 2 Number of drives divided by 2
RAID 5 3 1
RAID 6
For the LSI 9560: 4
For the other storage
controllers: 3 (4 is
recommended.)
2
RAID 00 2 0
RAID 10 4
n, where n is the number of RAID 1 arrays in the RAID 10
array.
RAID 50 6
n, where n is the number of RAID 5 arrays in the RAID 50
array.
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