IBM N Series, Руководство по внедрению

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80 Reinstalling the system
Reinstalling the system
Default selection of
the root volume
location If technical support advises you to completely reinstall your system because of a
problem, you need to follow the appropriate procedure so that the root volume is
installed where you want it. When no aggregates or volumes are on the native
disk shelves attached to the gateway, Data ONTAP is optimized to select a disk
for the root volume. Before you start reinstalling your system, you need to decide
whether this default behavior for selection of the location of the root volume is
the right approach for your system. See “
Choices for root volume installation ” on
page 80 before you start installation.
Choices for root
volume installation The following summarizes the choices you have regarding root volume
installation when you need to reinstall the system, and where to find the
procedures that you need for each choice.
You need to decide how you want the disk for the root volume to be selected:
◆
If you want to specify the disk for the root volume, see “ Choosing the disk
for the root volume ” on page 81
◆
If you want Data ONTAP to select the disk automatically, see “ Allowing
Data ONTAP to choose the disk for the root volume ” on page 80
Allowing Data
ONTAP to choose
the disk for the root
volume
If you do not have a preference for which disk to use for the root volume, you can
let Data ONTAP automatically select the disk. Data ONTAP automatically
assigns three disks and selects one of them for the root volume.
Note
Data ONTAP requires three disks for RAID-DP, which is the default RAID type
for disks starting in Data ONTAP 7.3.
To let Data ONTAP automatically select the disk for the root volume, complete
the following steps.
Step Action
1 Gather information that you need for the setup script, using the setup
parameters worksheet in the Data ONTAP
Software Setup Guide .