SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

6 Configuring Disks
This chapter describes configuring disks. Disks share the object type of DISK with virtual disks. For
information about disks and their states, see “The DISK Object” (page 33) and “Object States and
Substates of Disks” (page 34). For commands that affect disks, see “Storage Subsystem Commands”
(page 190). For configuration information, see “Configuring and Managing Virtual Disks” (page 143) .
For information about disk load balancing, see “Disk Load Balancing” (page 118). For a list of
supported disks, see the NonStop S-Series Planning and Configuration Guide and the NonStop
NS-Series Planning Guide. This chapter describes:
• “Types of Disks” (page 70)
• “System Disk Configuration” (page 72)
• “Automating Disk Configuration” (page 73)
• “Configuring Internal Disks to Start Automatically” (page 74)
• “Configuring Custom Profiles” (page 75)
• “Mirrored Disk Placement” (page 77)
• “Configuring Mirrored Disks” (page 78)
“Changing a Mirrored Volume Into Two Nonmirrored Disks” (page 79)◦
◦ “Changing Two Nonmirrored Disks Into a Mirrored Volume” (page 79)
• “Adding a Disk” (page 82)
“Adding a Similar Disk to This System” (page 83)◦
◦ “Adding a Similar Disk to Another System” (page 84)
• “Altering Disk Attribute Values” (page 84)
• “Naming a Disk” (page 88)
“Changing the Volume Name and Alternate Volume Name” (page 88)◦
◦ “Changing Either the Volume Name or Alternate Volume Name” (page 90)
◦ “Changing the Volume Name and Alternate Volume Name (Deleting Files)” (page 91)
• “Relabeling and Initializing a Disk” (page 92)
• “Partitioning HDDs and SSDs” (page 92)
• “Deleting a Disk” (page 93)
• “Write Caching” (page 94)
Types of Disks
You can configure several types of disks for NonStop servers:
NOTE: The terms “disk” and “physical disk” include both magnetic and solid state disks.
DescriptionType
SCSI disks that reside in slots 1 through 18 of NonStop S-series system enclosures.Internal SCSI
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).
45xx
70 Configuring Disks