Dvd - IBM Power 750 Technical Overview And Introduction

RAID 0, 10, 5, and 6 support up to six drives.
SSDs and HDDs can be used, but can never be mixed in the same disk enclosure.
To connect to the external storage, you need to connect to the FC 5887 disk drive
enclosure.
Figure 2-16 shows the topology of the RAID mode.
I/O Planar
Int. SAS Cnt.
P7IOC
P7IOC
External SAS Port
External Disk
Drawer
Figure 2-16 RAID mode with external disk drawer option

2.8.4 DVD

The DVD media bay is directly connected to the integrated SAS controller on the I/O
backplane and has a specific chip (VSES) for controlling the DVD LED and power. The VSES
appears as a separate device to the device driver and operating systems (Figure 2-13 on
page 76).
Because the integrated SAS controller is independent from the two SAS disk or SSD
controllers, it allows the DVD to be switched between multiple partitions without affecting
the assignment of disks or SSDs in the system enclosure.
Integrated
SAS
Controller
Battery
Battery
Integrated
SAS
Controller
Chapter 2. Architecture and technical overview
DASD Backplane
SAS Port
Expander
SAS Port
Expander
Optical Optical
Hard Disk 1
Hard Disk 2
Hard Disk 3
Hard Disk 4
Hard Disk 5
Hard Disk 6
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