Cisco UCS B420 M4 Blade Server
18
CONFIGURING the SERVER
Supported Configurations
1
(1) Four Drive Bays with RAID 0, 1, 10
■
Choose the following:
— One UCSB-MRAID12G. This provides two drive bays installed on the left side of the
blade server (viewed from the front). The RAID controller is integrated in the drive
bays and provides RAID 0,1,10.
— One UCSB-LSTOR-PT. This provides two drive bays installed on the right side of the
blade server (viewed from the front) and includes a passthrough connector that
allows the drives to be managed from the UCSB-MRAID12G RAID controller (RAID
0,1,10).
(2) Four Drive Bays with RAID 0, 1, 10, 5, 6
■
Choose the following:
— One UCSB-MRAID12G-HE. This provides two drive bays installed on the left side of
the blade server (viewed from the front). The RAID controller includes a 2 GB
flash-backed write cache (FBWC)
2
for higher performance, is integrated in the drive
bays, and provides RAID 0, 1,10, 5, 6, 50, 60.
— One UCSB-LSTOR-PT. This provides two drive bays installed on the right side of the
blade server (viewed from the front) and includes a passthrough connector that
allows the drives to be managed from the UCSB-MRAID12G-HE RAID controller (RAID
0, 1,10, 5, 6).
(3) Two Drive Bays with RAID 0, 1, 10
■
Choose the following:
— One UCSB-MRAID12G. This provides two drive bays installed on the left side of the
blade server (viewed from the front). The RAID controller is integrated in the drive
bays and provides RAID 0,1,10. The two right-hand bays are fitted with blanking
panels to maintain proper cooling airflow.
(4) Two Drive Bays with RAID 0, 1, 10, 5, 6
■
Choose the following:
— One UCSB-MRAID12G-HE. This provides two drive bays installed on the left side of
the blade server (viewed from the front). The RAID controller includes a 2 GB
flash-backed write cache for higher performance, is integrated in the drive bays and
provides RAID 0, 1,10, 5, 6. The two right-hand bays are fitted with blanking panels
to maintain proper cooling airflow.
(5) No Drive Bays
■
System is installed with blanking panels.
Notes
1. Any empty drive bays must be fitted with blanking panels to maintain proper cooling airflow.
2. The flash-backed write cache provides RAID controller cache protection using NAND flash memory and a
supercapacitor. In the event of a power or server failure, cached data is automatically transferred from the
RAID controller DRAM write cache to flash. Once power is restored, the data in the NAND flash is copied back
into the DRAM write cache until it can be flushed to the disk drives.
