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Figure 3. CCIN 572F PCI-X266 Ext Tri-x4 3 Gb SAS RAID adapter and CCIN 575C PCI-X266 Auxiliary Cache adapter
Related concepts
Chapter 5, "Dual storage IOA configurations," on page 21
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 22
Consider these factors when using dual storage I/O adapter (IOA) functions.
PCIe SAS RAID card comparison
Use the table in this topic to compare the features of a 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
6
SAS RAID controllers for IBM i
57B7
PCIe x1 Auxiliary Cache
adapter
Planar Auxiliary Cache
2
175 MB
Lithium ion
Yes
Yes
No
57B3
PCIe x8 Ext Dual-x4 3 Gb
SAS adapter
PCIe x8
8 (two mini SAS 4x
connectors)
1
1
RAID 5
, RAID 6
, system
mirroring
No
No
No
574E
PCIe x8 Ext Dual-x4 3 Gb
SAS RAID adapter
PCIe x8
8 (two mini SAS 4x
connectors)
RAID 5, RAID 6, system
mirroring
380 MB
Lithium ion
Yes
Yes
Yes
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