IBM ServeRAID M5015 User Manual

Configuration Scenarios 1-7
Figure 1.2 Example of a ServeRAID Controller Configured with an
LSISASx12 Expander
1.4.1 Number of Physical Disks Supported
Your configuration planning for your ServeRAID controller depends in
part on the number of physical disks that you want to use in a RAID
array. The number of drives in an array determines the RAID levels that
can be supported by this controller. Only one RAID level can be assigned
to each virtual disk. Table 1.1 shows the minimum number and the
maximum number of drives required for each RAID level.
LSISASx12
Flash ROM/
NVSRAM/
SRAM
I
2
C/UART
LSISASx12
SAS/SATA II
Drives
PCI Express Interface
SAS/SATA
Drives
SAS/SATA II
Drives
SAS/SATA II
Drives
SAS/SATA II
Drives
8
SRAM
SRAMSDRAM
Peripheral
Bus
72-bit DDR/DDR2
with ECC
Interface
LSISAS2108
PCI Express to SAS ROC
SAS
RAID Controller
Expander
Expander
Table 1.1 Physical Devices Required for Each RAID Level
RAID
Level
Minimum # of
Physical Devices
Maximum # of
Physical Devices
01 32
12 32
5 3 32
6 3 32
10 4 32

IBM ServeRAID M5015 Specifications

General

Brand	IBM
Model	ServeRAID M5015
Category	Controller
Language	English