<p>The IBM Power6 8203-E4A (#5776) PCI-X Disk Controller-90MB No IOP</p>
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<p>(Available in Refurbished Condition Only as of August 28, 2009)</p>
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<p>Provides a PCI-X SCSI disk controller that has a 90MB write cache and can provide RAID-5 or RAID-6 protection of disk units.</p>
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<p>The #5776 has two U320 SCSI buses each with a bus data rate of up to 320MBs. A maximum of 12 or 24 disk drives and up to two internal removable media devices (tape, DVD-ROM, or DVD-RAM) are supported on the #5776. The maximum is 12 drives in a #0595 I/O drawer. The maximum is 10 drives in a #5094/5294. The maximum is 24 drives in an EXP24 Disk Enclosure. The #5776 can attach to disk drives within an expansion tower and also attach to disk units in an EXP24 Disk Enclosure. The #0301 specify indicates to the IBM Configurator tool that one port of the #5776 is attaching to disk units in an EXP24 Disk Enclosure.</p>
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<p>A minimum of three disk drives are required for RAID-5, providing protection against a single drive failure in an array. A minimum of four disk drives are required for RAID-6, providing protection against up to two drives failing in an array.</p>
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<p>Note: The 757MB write cache and 1.5GB write cache disk controllers provide greater disk performance and have an auxiliary write cache IOA to protect the write cache contents.</p>
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<p>Attributes provided: Two Ultra320 SCSI VHDCI ports</p>
<p>Attributes required: One available 3.3V long PCI or PCI-X slot</p>
<p>For 8203-E4A: The IBM Power6 8203-E4A (#5776)</p>
<p>Minimum required: 0</p>
<p>Maximum allowed: 60 (Initial order maximum: 60)</p>
<p>OS level required: IBM i V5R4 with V5R4M5 Machine Code, or later.</p>
<p>Initial Order/MES/Both/Supported: Both</p>
<p>CSU: Yes</p>
<p>Return parts MES: No</p>
<p>Note: Maximum of 2 in CEC under IBM i. System maximum of 60 under IBM i. Not supported under AIX or Linux.</p>
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