
32 Netfinity and Windows 2000 Integration Guide
2.2.5 Logical drive migration
One of the strongest management features of the ServeRAID adapters is logical
drive migration (LDM), which offers unrivaled disk subsystem flexibility. The
following functions are offered:
• Change the RAID levels of logical drives in an array.
• Add a hard disk to an array and increase logical drive capacity.
• Add a hard disk to an array and increase the free space.
These features enable you to reconfigure logical drive structures online, with little
impact on users.
2.3 Fibre Channel products
Netfinity Fibre Channel is an IBM implementation of a new high-speed fiber optic
storage technology that can be used to connect large amounts of disk storage to
a server or cluster of servers. Fibre Channel technology supports increased
performance, scalability, availability, and distance for attaching storage
subsystems to network servers.
The solutions you can create with the IBM Netfinity Fibre Channel components
give you the ability to design extremely flexible and expandable configurations.
This chapter describes the hardware components available from IBM.
There are a number of components that can be configured together to form a
Fibre Channel solution. This chapter describes these components:
• Netfinity Fibre Channel PCI Adapter
• Netfinity Fibre Channel RAID Controller Unit
• Netfinity Fibre Channel Failsafe RAID Controller
• Netfinity Fibre Channel Hub
• Netfinity EXP200 and EXP15 Storage Enclosure
• GBICs and cabling
For more information beyond that covered in this section, see the redbook
Implementing Netfinity Disk Subsystems: ServeRAID SCSI, Fibre Channel and
SSA, SG24-2098.
2.3.1 Netfinity Fibre Channel PCI Adapter
The Netfinity Fibre Channel PCI Adapter (part 01K7297) is a half-length 64-bit
PCI bus master adapter that is installed in the Netfinity server for connectivity to
the external storage enclosure. The adapter connects to either a Netfinity Fibre
Channel Hub or Netfinity Fibre Channel RAID Controller.
The adapter supports short-wave optical cables that may be connected either to a
Netfinity Fibre Channel RAID Controller or to a short-wave optical GBIC in a
Netfinity Fibre Channel Hub. The cable may be a 5 meter or 25 meter short-wave
50 micron multimode fiber cable (the IBM Netfinity Fibre Channel cables, see
2.3.6, “Fibre Channel cables” on page 38) or a customer-supplied cable of the
same specification up to 500 m.
The adapter is often simply referred to as the host adapter.
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