5486IOA.fm Draft Document for Review October 18, 2004
358 IBM Eserver i5 and iSeries System Handbook
In addition to providing RAID-5 protection for disks, the #4778/#9778 is designed
to work as a high performance controller for disks protected by system mirroring
or disks with no protection.
The #4778/#9778 controller supports a maximum of 18 disk units. Hardware data
compression is supported for 35 GB or smaller disk units.
The #4778/#9778 requires OS/400 V5R1 or later.
When used as a Direct Attached Adapter for Linux, order the #0606 in place of
the #4778.
The #4778/#9778 Base PCI RAID Disk Unit Controller will be withdrawn from
marketing in November 2004
#4801 PCI Cryptographic Coprocessor
The #4801 PCI Cryptographic Coprocessor is a hardware cryptography solution
based on the IBM 4758-023 card. The #4801 is a half-length PCI card that offers
rich cryptography function, secure storage of cryptographic keys, and triple DES
capability. The Cryptographic Access Provider licensed program (no-charge
5722-AC3) must be installed to set the key length prior to using the adapter.
The #4801 is available worldwide.
#4802 PCI Cryptographic Processor
The #4802 PCI Cryptographic Processor is a hardware cryptography solution
based on the IBM 4758-023 card. The #4802 is a half-length PCI card that offers
rich cryptography function, secure storage of cryptographic keys, and triple DES
capability. The #4802 provides greater security by use of 112-bit keys (compared
to a 56-bit key of the #4800). The Cryptographic Access Provider licensed
Note: Due to system CEC and external tower disk unit cage SCSI bus
designs, only the Models 270, 800, and 810 have a suitable system
configuration to allow 18 disk units to attach to a single #4778. All other CEC
or tower disk unit configurations restrict the number of attaching disk units to
15 or less.
Note: On new systems from the plant, the #4801 is shipped with the system.
Due to temperature requirements (card temperature must not drop below 5
degrees Fahrenheit (-15 degrees Celsius)), it is not installed.
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