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Subsystem Characteristics

MVS and UNIX® multiplatform support

Subsystem sharing with Hitachi Multiplatform Resource Sharing (HMRS) Bulk data transfer with Hitachi Multiplatform Data Exchange (HMDE) MVS backup and recovery of UNIX data with Hitachi Multiplatform Backup/Restore (HMBR)

Excellent on-line and batch performance

RAID-1+ and/or RAID-5+ Multiple-bus architecture with 500MB/sec bandwidth Dynamic Duplexed Cache with up to 8GB nonvolatile storage 3.5-inch, SCSI-2, dual-ported, 9.2GB disk drives Integrated performance management with HDS GRAPH-Track™† Intelligent Learning Algorithm

Continuous data availability

No single points of failure RAID-level data protection Complete component redundancy Hot-pluggable, field-replaceable units Hi-Track® predictive maintenance service Dynamic sparing of disk drives Nondisruptive feature and capacity upgrades Nondisruptive microcode updates Safe, high-speed data migration with Hitachi On-line Data Migration (HODM) Synchronous remote copy support with Hitachi Remote Copy (HRC)† Asynchronous remote copy support with Hitachi Extended Remote Copy† (HXRC) Semi-synchronous remote copy support with HRC HRC read-only access from secondary volumes Non-host support for VM/ESA and VSE/ESA with HRC Extended Data Availability and Protection (EDAP) criteria—Disaster Tolerant Disk Systems plus certification issued by RAB

† Available under license and with HDS sevice agreement.

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Control Frame
Client-Host Interface Processor (CHIP)
Number of CHIP pairs	1 or 2
Simultaneous data transfers per CHIP pair
S/390®	4
Open systems	8
Simultaneous I/O operations per CHIP pair	8
Physical interfaces per CHIP pair	4 or 8
Physical interfaces per subsystem
Maximum	16
Parallel	0, 8, or 16
ExSA	0, 4, 8, 12, or 16
SCSI-2 FWD	0 or 8
Logical paths
Parallel	Up to 16
ExSA	Up to 256
SCSI-2 FWD
2.4GB LUNs	Up to 240
7.3GB LUNs	Up to 168
Transfer rate
3.0, 4.5, or 6.0MB/sec	Std on parallel
10 or 17MB/sec	Std on ExSA
20MB/sec	Std on SCSI-2 FWD
Nonvolatile cache	256MB to 8GB
Array Control Processor (ACP)
ACP pairs
S/390	1,† 2, 3, or 4
Open systems	1, 2, or 3
Physical array paths per ACP pair	8
Array paths
S/390	8,† 16, 24, or 32
Open systems	8, 16, or 24
S/390 device model intermix by Array Group (9.2GB drives)
RAID-5+	3390 models -1, -2, -3,-3R,†† -9; 3380 models -E, -J, -K
RAID-1+	3390 models -1, -2, -3, -3R;†† 3380 models -E, -J, -K
Array interface	SCSI-2
Simultaneous transfers per ACP pair
To nonvolatile cache	4
To array	8
Transfer rate
Per array path	12.5MB/sec
Per ACP pair	100MB/sec
Multiple-bus architecture internal bandwidth	500MB/sec
† Requires installation of multiplatform SCSI features. †† -3R: Model-3 RAMAC support.

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Array Frame
Array frames per subsystem	1 to 4
Spare drives per subsystem (standard)
RAID-5+ with 9.2GB drives	1
4.5GB/9.2GB drive intermix	2
RAID-1+/5+ intermix	1
Spare drives per 7700 subsystem (maximum)
With 4.5GB drives	16
With 9.2GB drives	10
RAID-5+ Array Group (S/390)
Disk drives per Array Group	7
User Capacity
Model-1 image (24 LVI)†	22.7GB
Model-2 image (24 LVI)	45.4GB
Model-3, -3R image (16 LVI)	45.4GB
Model-9 image (6 LVI)	51.1GB
Model-E (24 LVI)	30.2 GB
Model-J image (32 LVI)	20.2GB
Model-K image (24 LVI)	45.4GB
Subsystem user capacity (RAID-5+)
Model-1 image (240 LVI)	227.0GB
Model-2 image (240 LVI)	454.1GB
Model-3, -3R image (256 LVI)	726.5GB
Model-9 image (192 LVI)	1,633.9GB
Model-E image (240 LVI)	302.4GB
Model-J image (256 LVI)	161.3GB
Model-K image (240 LVI)	453.6GB
RAID-5+ Array Group (open systems)
Disk drives per Array Group	7
Logical units per Array Group (9.2GB drives)
2.4GB LUN	20
7.3GB LUN	7
Logical units per Array Group (4.5GB drives)
2.4GB LUN	9
Capacity per Array Group (9.2GB drives)
2.4GB LUN	48.0GB
7.3GB LUN	51.1GB
Capacity per Array Group (4.5GB drives)
2.4GB LUN†	21.6GB
Maximum subsystem user capacity (9.2GB drives)
2.4GB LUN	576.0GB
7.3GB LUN	1.2TB
RAID-1+ Array Group (S/390—9.2GB drives)
Disk drives per Array Group	4
User capacity per Array Group
Model-1 image (16 LVI)	15.2GB
Model-2 image (8 LVI)	15.1GB
Model-3, -3R (6 LVI)	17.0GB
Model-E image (12 LVI)	15.1GB
Model-J image (16 LVI)	10.1GB
Model-K image (8 LVI)	15.1GB
Subsystem user capacity
Model-1 image (256 LVI)	243.2GB
Model-2 image (256 LVI)	484.3GB
Model-3, -3R image (252 LVI)	715.2GB
Model-E image (252 LVI)	317.5GB
Model-J (256 LVI)	161.3GB
Model-K image (256 LVI)	483.8GB
Disk drives††
Capacity	9.2GB
Head technology	Third-generation MR
Form factor	3.5 in.
Actuator	Recoilless rotary
Servo system	Digital
Interface	Dual-ported SCSI-2
Rotation speed	6,300RPM
Average latency	6,300RPM
Average latency	4.76ms
Average seek time	12.5ms
† LVI = Logical Volume Image. †† Additional 4.5GB drives are available as upgrades to customers with installed 7700s. New 7700 subsystems feature the 9.2GB drives.

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Operating System Support

S/390®

OS/390®

MVS/ESA MVS/XA MVS/370 VM/ESA VM/XA VM/HPO VSE/ESA VSE/SP (4.1)

Open systems

HP-UX 10.1, 10.2, and 11.x Sun Solaris 2.5 and 2.6 IBM AIX® 4.1.4, 4.2, and 4.3 Sequent DYNIX/ptx 4.4.2 Windows NT 4.x DEC UNIX® 4.x