<p>IBM Power7 8202-E4B (#5901) - PCIe Dual-x4 SAS Adapter (57B3)</p>
<p>The #5901 PCIe Dual-4x SAS Adapter is a low-profile short form factor adapter which supports the attachment of SAS disk, tape, and DVD using a pair of mini SAS 4x connectors. From a high level perspective, it is functionally equivalent to the #5912 PCI-X SAS adapter and provides a high-performance connection to SAS devices.</p>
<p>The #5901 supports external SAS tape drives such as the 36/72 GB DAT72, 80/160GB DAT160, and 800/1600GB LTO-4 found in the IBM tape units such as the 7214-1U2, TS2240, TS2340, TS3100, TS3200, and TS3310. Other removable media devices supported include IBM SAS/SATA DVD-ROM/RAM drives. SAS adapter-to-enclosure (AE) cables are used to attach these drives. The #5901 supports SAS SFF disk drives located in a PCIe 12X I/O Drawer or SAS disk drives located in an EXP12S or EXP24S Disk Drawer or drives in a POWER6 system CEC (split DASD backplane). AIX/Linux formatted SAS drives are supported with RAID 0 (with mirroring) and RAID 10. IBM i formatted SAS drives are supported and data spreading and mirroring functions are provided by IBM i. RAID-5 or RAID-6 are not supported on the #5901. #5901 has zero write cache. CCIN for #5901 is 57B3.</p>
<p>With proper cabling and configuration, multiple wide ports are used to provide redundant paths to each dual port SAS disk . The adapter manages SAS path redundancy and path switching should a SAS drive failure occur. SAS Y cables attach SAS disk drives in an EXP12S or EXP24S Disk Drawers. SAS #3688 cables attach SFF SAS drives in an PCIe 12X I/O Drawer. With the EXP12S or EXP24S Drawer, a high availability I/O configuration can be created using a pair of #5901 adapters and SAS X cables to protect against the failure of a SAS adapter. In the PCIe 12X I/O Drawer, this function is provided via the internal wiring within the drawer itself.</p>
<p>Highlights</p>
<p>Supports up to 48 SAS disks, when configured with four #5886 EXP12S Disk Drawers or two #5887 EXP24S Disk Drawer</p>
<p>Supports up to 42 disk (18 SFF disk plus up to 24 3.5-inch SAS disk) when configured with a #5802 19-inch PCIe 12X I/O Drawer and two #5886 EXP12S Disk Drawers or configured with a #5802 and one #5887 EXP24S</p>
<p>Supports up to 50 disk (26 SFF disk plus up to 24 3.5-inch SAS disk) when configured with a #5803 24-inch PCIe 12X I/O Drawer and two #5886 EXP12S Disk Drawers or configured with a #5803 and one #5887 EXP24S</p>
<p>SAS speed = 3Gbs</p>
<p>SATA speed = 1.5Gbs</p>
<p>SAS Serial SCSI Protocol (SSP) , Serial ATA Tunneling Protocol (STP) and Serial Management Protocol (SMP)</p>
<p>Dual controller supports mirrored RAID parity footprints</p>
<p>Concurrent firmware update</p>
<p>Attributes provided: Eight physical links via two mini SAS 4x connectors</p>
<p>Attributes required: One PCI Express slot</p>
<p>For 8202-E4B: (#5901)</p>
<p>Minimum required: 0</p>
<p>Maximum allowed: 24 (Initial order maximum: 24)</p>
<p>OS level required:</p>
<p>AIX Version 5.3 supported</p>
<p>AIX Version 6.1 supported</p>
<p>AIX Version 7.1 supported</p>
<p>IBM i 6.1 supported</p>
<p>IBM i 7.1 supported</p>
<p>SUSE Linux supported</p>
<p>Red Hat Linux supported</p>
<p>Refer to Software Requirements for specific O/S levels supported</p>
<p>Initial Order/MES/Both/Supported: Both</p>
<p>CSU: Yes</p>
<p>Return parts MES: No</p>
<p>Note:</p>
<p>Maximum of 4 in the CEC</p>
<p>System maximum of 24 -- 4 in CEC and 20 in 2 x #5802/ #5877</p>
