Bull NovaScale T840, Руководство пользователя

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User Guide
35
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Provides RAID modes 0, 1, and 10.
For RAID 0, 1, and 10, enclosure management is provided through the
SATA_SGPIO connector on the server board when a cable is attached between this
connector on the server board and to the backplane or I
2
C interface.
SATA/SAS On-board controller (depending on your system)
In addition to the SATA features described above, SAS models also have a dual-mode
4-port Serial Attached SCSI (SAS) controller that supports both SAS and SATA hard
disk drives.
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Capable of data transfer rates of up to 3.0 Gbps per port.
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Supports eight physical drives and eight logical arrays. The SAS controller
supports up to 120 physical drives when expanders are used.
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Can be set-up via the BIOS Setup utility.
The BIOS Setup utility includes options on the Advanced > Mass Storage setup
page to enable or disable the SAS option ROM and the SAS controller. Both of
these options must be enabled to use RAID.
- When the SAS controller is enabled, the two black SATA ports on the server
board continue to function as SATA ports. The four blue ports can be used as
either SAS or SATA ports.
Note: If the SAS option ROM is disabled in the BIOS Setup
utility, but the SAS controller is enabled, the four blue ports on
the server board continue to function as either SAS or SATA
ports and the two black ports on the server board continue to
function as SATA-only ports. However, RAID support is not
available.
- When the SAS controller is disabled in the BIOS Setup utility, only the two
black SATA ports will be available.
When the SAS option ROM is enabled in the BIOS Setup utility, it enables SAS
RAID modes 0, 1, or 10 for the four blue ports on the server board.
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The SAS controller can mix SAS and SATA drives.