Communicator e3000 MPE/iX Release 7.5 PowerPatch 2 (Software Release C.75.02) (30216-90352)

Chapter 3

Technical Articles

Announcing High Availability FailOver/iX for FC Disk Arrays

CAUTION Before deploying HAFO, system disk I/O performance should be analyzed. Those systems with

disk I/O bottlenecks (long disk queues and/or I/O completion times greater than a few seconds)

are not good HAFO candidates as false failover events may be seen.

NOTE Those customers using Cluster/iX to protect their MPE/iX disk volumes may NOT use

HAFO/iX on these same volumes. Further, Cluster/iX and HAFO/iX protected volumes may not

share an HBA.

Required Hardware and Software

Required Hardware

• HP e3000 (each HAFO connection requires a pair of HBAs)

—S9xx

— A28696A NIO F/W SCSI Card

— A5814A SCSI-FC Router

— A-Class, N-Class

— A6795A 2Gbit FC HBA

• Supported FC Multi-port Disk Array Products (each HAFO connection requires a pair of ports)

— VA7410

— XP48 and XP512

— XP128 and XP1024

— (SCSI XP256 remains supported)

Minimum Required Software

MPE/iX 7.0 (for HP e3000 S9xx)

MPE/iX 7.5 (for HP e3000 A/N-Class)

MPEMXL5 (I/O Core Patch for BOTH 7.0 and 7.5) (or superceding patch)

MPEMXK9 (HA Utilities Patch for BOTH 7.0 and 7.5) (or superceding patch)

Hardware that is NOT supported

• Any Arrays not listed above including, but not limited to

— VA7100, VA7110 (supported on MPE but not for HAFO)

— FC-XP256, VA7400 (never supported on MPE)

• A5814-001 Distancing Router (direct connect to XP48/512)