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Figure 13. PCIe Dual - x4 SAS adapter
Specifications
Item
Description
Adapter FRU number
44V4852 (Designed to comply with RoHS requirement)
I/O bus architecture
PCIe
Slot requirement
One available PCIe x8 slot
Cables
SAS device attachment requires specific cables that are provided with the subsystem or device
features being attached. Special cabling is required for multi-initiator and high availability
configurations. See Serial attached SCSI cable planning.
Voltage
3.3 V
Form factor
Short, low-profile
Maximum number
For the maximum adapters supported, see the PCI adapter placement topic collection for your
system.
Attributes
v Two external mini SAS 4x connectors provide attachment of SAS and Serial Advanced
Technology Attachment (SATA) device enclosures
v SAS Serial SCSI Protocol (SSP), Serial ATA Tunneling Protocol (STP), and Serial Management
Protocol (SMP)
v RAID 0, 5, 6, 10
The write performance of RAID 5 and RAID 6 can 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.
v Concurrent firmware update
v Removable media device supported (Removable media is not supported in multi-initiator and
high availability configurations)
v Removable media device supported
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Power Systems: Managing PCI adapters for the 8233-E8B or 8236-E8C
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