SCF Reference Manual for the Storage Subsystem (G06.27+, H06.04+)

Configuring Magnetic Disks
SCF Reference Manual for the Storage Subsystem—529937-008
6-2
Types of Magnetic Disks
Types of Magnetic Disks
You can configure four types of magnetic disks for NonStop servers:
Configuring Paths for Different Disk Types
The values you specify when configuring a disk vary depending on the type of disk and
the NonStop server model. For example, the valid ranges for group, module, and slot
of an M8xxx disk on an Integrity NonStop NS-series server differ from those of an
internal disk on a NonStop S-series server.
Table 6-1, Disk Path Attributes lists the possible attribute values for the different disk
types.
Type Description
Internal
SCSI
SCSI disks that reside in slots 1 through 18 of NonStop S-series system
enclosures.
45xx Fibre Channel disks that reside in slots 0 through 7 of a modular disk
subsystem outside of NonStop S-series system enclosures. The disk
subsystem connects to the server through a ServerNet/DA Adapter (SNDA).
M8xxx Model M8xxx disks that reside in slots 1 through 14 of a Fibre Channel disk
module (FCDM) connected to FCSAs in an IOAM enclosure.
ESS Disks within an Enterprise Storage System.
Note. When a NonStop S-series I/O enclosure is attached to an Integrity NonStop NS-series
system, the enclosure retains the same group number it had on the NonStop S-series system.
However, if the appropriate port for the group number is not available on the Integrity NonStop
NS-series server, you must change the group number of the I/O enclosure. For more
information, see the NonStop NS-Series Hardware Installation Manual.