I/O Adapters and Controllers
320 iSeries Handbook
• 9348-001 ½-inch Reel Tape Unit–Rack Mount
• 9348-002 ½-inch Reel Tape Unit–Tabl e To p
• 9427-21x 8mm Tape Library
When attaching Ultra SCSI to a #6534, the instantaneous data transfer rate is 20 MB/sec,
and sustained is 17 MB/sec.
The #6534 offers improved performance over #6501 for external tape attachment, and
therefore, effectively replaces it.
The #6534 does not provide Hardware Data Compression (HDC).
CCIN 671A MFIOP with RAID
The CCIN MFIOP with RAID is a SCSI controller that provides unprotected, mirrored, or
RAID-5 protection for internal disk units in a #5077 Migration Tower and the #9057 16 Disk
Unit Storage Expansion Unit. It includes a 4M write cache for better performance and
improved device utilization. The CCIN 671A also controls the internal CD-ROM drive and one
internal tape unit and contains three IOA slots for communications, LAN, and twinaxial I/O
adapters.
The CCIN 671A MFIOP with RAID supports a maximum of 20 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 can be spread
across four or eight disk units. A maximum of four RAID-5 arrays are supported on one CCIN
671A. Disk units not supported in a RAID-5 array can also be attached to the CCIN 671A in
either an unprotected or a mirrored environment. The CCIN 671A supports also data
compression.
High Workload SPD IOP Placement Rules for Magnetic Media
If you place any of these IOPs in combination on the same SPD bus, follow the rules provided
in the following table. Refer to the
iSeries and AS400e System Builder
, SG24-2155, for
additional details.
Limitations to Combinations of High Workload IOPs (SPD Type)
Subsystem High Workload IOP Bus Capacity
Tape #2624 Non streaming
DASD #2748, #6501, #6533 Streaming
Tape #6501, #6513, #6534, #2718 Streaming
Tape IOP with 3590 Tape #6534 Streaming
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