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Table 2. PCIe SAS RAID controller card comparison (continued)
Features
Auxiliary write cache
(AWC) support
Dual storage IOA
configuration
Requires dual storage IOA
configuration
1. The write performance of RAID 5 and RAID 6 might be poor on adapters that do not provide write cache.
Consider using an adapter that provides write cache when using RAID 5 or RAID 6.
Adapter graphics
View the SAS RAID controllers.
Figure 4. CCIN 57B7 Planar Auxiliary Cache
Figure 5. CCIN 57B3 PCIe x8 Ext Dual-x4 3 Gb SAS adapter
57B7
Yes
No
No
57B3
No
No
No
Chapter 2. SAS RAID controllers for IBM i
574E
No
Yes
Yes
7
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