4802 Pci Crypto Coprocessor; 2718 Pci Magnetic Media Controller; 2726 Pci Raid Disk Unit Controller Ultra Scsi - IBM i series Handbook

I/O Adapters and Controllers

#4802 PCI Crypto Coprocessor

The #4802 is a hardware cryptography solution based on the IBM #4758 card. The #4802 is a
half-length PCI card that offers rich cryptography function, secure storage of cryptographic
keys, and triple DES capability. The level of the cryptographic function is determined by the
Cryptographic Access Provider Licensed Program, which is used to set the key length in the
adapter. The #4802 provides greater security by use of 168-bit key (compared to a 56-bit key
of the #4800).
The #4802 is available worldwide.
Each #4800 PCI Crypto Coprocessor installed in a Model 6xx/Sxx/7xx or attached expansion
towers must be converted to a #4802 PCI Crypto Coprocessor. The #4800 is not supported
on the 8xx models nor in #503X/#5077 migration towers and their attached expansion towers.
Note: On new shipments from the plant, the #4802 is shipped with the system but not
installed.

#2718 PCI Magnetic Media Controller

The #2718 provides SCSI External attach capability for the 7207 Model 122 4 GB External
QIC Tape Drive, the 7210-025 DVD-RAM, the 7329-308 SLR100 ¼-inch Tape Autoloader,
and the 7208-345 60 GB External 8mm Tape Drive. See "#2768 PCI Magnetic Media
Controller" on page 305 for connectivity rules.

#2726 PCI RAID Disk Unit Controller Ultra SCSI

The #2726 PCI RAID Disk Unit Controller provides unprotected, mirrored, or RAID-5
protection for internal disk units. It includes a 4M write cache for better performance and
improved device utilization. The #2726 also supports one CD-ROM drive and one internal
tape unit when placed in the #503x. When placed in the #5064/#9364 System Unit
Expansion, the #2726 can support up to three internal tape units.
The #2726 controls Ultra, Fast Wide, and Fast Narrow SCSI disk units located in the #503x
and the #5064/#9364 System Unit Expansion with Expansion Unit for PCI cards #9329. The
Ultra SCSI disks provide the best performance when attached to the #2726. These Ultra
SCSI disks are 17.54 GB Disk Unit #6824, 8.58G Disk Unit #6813, 4.19G Disk Unit #6807,
1.96 GB Disk Unit# 6806, and their base disk equivalents and the #1334 (17.54G), #1333
(8.58 GB), #1337 (4.19 GB), and #1336 (1.96 GB) Disk Unit Migration Kits. These are all
supported in the #503x and #5064/#9364 System Unit Expansion. The #2726 also controls
migrated disks that are not Ultra SCSI. In that case, the disks do not perform at Ultra SCSI
speeds.
The #2726 PCI RAID Disk Unit Controller supports a maximum of 15 one or two-byte disk
units. A minimum of four disk units of equal capacity are required to implement RAID-5
protection. A maximum of 10 disk units per RAID-5 array are supported. Parity information
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I/O Adapters and Controllers