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Configuring a
RAID-MARVELL-SANTACRUZ-LP-2i
storage controller
About the RAID-MARVELL-SANTACRUZ-LP-2i
storage controller
The RAID-MARVELL-SANTACRUZ-LP-2i standard storage controller can be installed onto a riser
card to provide limited RAID support for the system, which improves read/write performance and
data security.
This section introduces the RAID-MARVELL-SANTACRUZ-LP-2i storage controller in a rack server.
Features
RAID levels
Table 1 shows the number of drives required by each RAID level and the maximum number of failed
drives supported by each RAID level. In the table, Just a Bunch of Disk (JBOD) mode provides
similar features as RAID 0 and requires only 1 drive. JBOD does not support redundancy. 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
JBOD 1 0
RAID 0 2 0
RAID 1 2 1
Restrictions and guidelines for RAID configuration
As a best practice, install drives that do not contain RAID information.
You must use the storage controller together with a RAID level because physical drives cannot
be identified in the OS.
The RAID-MARVELL-SANTACRUZ-LP-2i storage controller supports only NVMe M.2 SSDs.
For efficient use of storage, use drives that have the same capacity to build a RAID. If the
drives have different capacities, the lowest capacity is used across all drives in the RAID.
Configuring RAID arrays in UEFI mode
RAID-MARVELL-SANTACRUZ-LP-2i storage controller cannot be configured in legacy mode. This
section describes how to configure RAID arrays through a RAID-MARVELL-SANTACRUZ-LP-2i
storage controller in UEFI mode. For more information about how to access the BIOS setup utility
and set the boot mode to UEFI, see the BIOS user guide for the server.
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