Magnetic Media Controllers - IBM AS/400e User Handbook Manual

• The system unit supports up to two disk unit controllers to control disks in the system
unit and #7104 Expansion Unit (if installed).
• The system unit supports up to six disks. The #7104 supports up to twelve disks. The
#5075 PCI Expansion Tower supports up to six disks and one disk controller.
• The default controller for a #5075 is the #2763 with #4748 optional.
• Disk protection levels:
– None: No protection
– 0040: Mirrored – device level
– 0041: Device parity protection (RAID) – all
– 0042: Mirrored - IOP level
• #4748 supports the #4331 1.6 Gb Read Cache Device
The following chart shows the defaults when the number of disk units and protection levels
are selected.
Number of Disks Protection
1 - 6
4 - 6
7 - 12
0041, 0040
4 - 12
13 - 18
0041, 0040
13 - 18
19 - 24
0041, 0040
19 - 24

Magnetic Media Controllers

• #2749 PCI Ultra Magnetic Media Controller
• #2768 PCI Magnetic Media Controller
System Unit
none default
0040
0041 default
none default
0042 default
none default
0042 default
none default
0042 default
AS/400e server 270
#7104 #5075
- -
- -
default -
default -
default -
default default
default default
default default
AS/400e server 270
Default Cont
#9767
#2763
#2763
1 - #9767
1 - #2763
#4748
1 - #9767
2 - #2763
1 - #4748
1 - #2763
1 - #9767
2 - #2763
131