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Figure 5. CCIN 2BD9 PCI-X266 Planar 3 Gb SAS RAID adapter
Related concepts:
"Dual storage IOA configurations" on page 22
You can increase availability using a dual storage I/O adapter (IOA) configuration to connect multiple
controllers to a common set of disk expansion drawers and the included disks and disk arrays.
"Dual storage IOA functions" on page 23
Consider these factors when using dual storage I/O adapter (IOA) functions.
Related information:
SAS subsystem for the 8202-E4B or 8205-E6B
SAS subsystem for the 8231-E2B
PCIe SAS RAID card comparison
Use the tables in this topic to compare the features of the various PCI Express (PCIe) SAS RAID cards for
IBM i. There are also images of adapters for you to view.
Table 2. PCIe SAS RAID controller card comparison
Features
Description
Form factor
Physical links
RAID levels supported
Write cache size
Read cache size
Cache battery pack technology
Cache battery concurrent
maintenance
Cache data present LED
Removable cache card
2B4C
574E
PCIe x4 Internal 3 Gb SAS
PCIe x8 Ext Dual-x4 3 Gb
RAID adapter
SAS RAID adapter
Planar unique PCIe
PCIe x8
6 (two 2x wide ports to
8 (two mini SAS 4x
shared SAS drives and one
connectors)
2x wide port to 57CB)
RAID 5, RAID 6, system
RAID 5, RAID 6, system
mirroring
mirroring
175 MB
380 MB
Lithium ion
Lithium ion
No
Yes
Yes
Yes
No
Yes
57B3
57B7
PCIe x8 Ext Dual-x4 3 Gb
PCIe x1 Auxiliary Cache
SAS adapter
adapter
PCIe x8
Planar Auxiliary Cache
8 (two mini SAS 4x
2
connectors)
1
1
RAID 5
, RAID 6
, system
mirroring
175 MB
Lithium ion
No
Yes
No
Yes
No
No
SAS RAID controllers for IBM i
5
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