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

Configuring Magnetic Disks
SCF Reference Manual for the Storage Subsystem—529937-008
6-18
Adding a Magnetic Disk
the primary. You must therefore use the SWAPMIRROR attribute so that the
primary disk drive becomes the mirror disk drive:
-> ALTER DISK $DATA1, SWAPMIRROR
This command converts the original mirror disk drive into the primary, thus making
it available to applications.
5. After the disk drive originally serving as the primary has become the mirror, you
can issue these commands:
-> STOP DISK $DATA1-M
-> STOP DISK $DATA1-MB
-> DELETE DISK $DATA1-M
6. Then issue an ALTER DISK $disk-volume-name command whose
MIRRORLOCATON attribute assigns the mirror disk drive, which was once the
primary disk drive, to location (1,1,1):
-> ALTER $DATA1, MIRRORLOCATION (1,1,1)
A prompt then gives you the option of reviving the disk drive.
7. To return both disk drives to their original roles, use the SWAPMIRROR attribute
again:
-> ALTER DISK $DATA1, SWAPMIRROR
Adding a Magnetic Disk
The ADD DISK Command (page 14-8) adds one or more magnetic disks to the system
configuration database;
•
You can insert the disk before or after entering the ADD command, unless you are
adding the first disk in an M8xxx FCDM daisy chain.
For daisy-chained M8xxx FCDMs, there must be at least one disk somewhere in
the daisy chain, so that the storage subsystem can verify that the two paths
specified in the ADD command go to the same daisy chain.
•
For internal disks, if AUTOCONFIGURATION (page 6-6) and AUTOSTART
(page 6-12) are on, the disk process automatically starts when you insert the disk.
If AUTOCONFIGURATION and AUTOSTART are off, insert the disk and then enter
the ADD command.
•
New M8xxx disks that are being used for the first time must be initialized after
they have been added.
•
When automatic configuration (page 6-6) is enabled, internal disks are
automatically added and optionally started. You do not need to enter an ADD
command.
Note. HP does not recommend AUTOCONFIGURATION for M8xxx disks.