First Virtual Communications Voyager 3000 - Manual (Page 54)

Voyager 3000 User Guide
4-12
The status of the SCSI drives are shown by selecting the View and Edit SCSI Drives option
from the Main Menu (Figure 4-11). A list of the SCSI drives and their status is shown, as in
Figure 4-22.
The status table shows the first three drives as part of logical volume 0. These have a status of
ON-LINE. In this case the available capacity will be 8190MB because the equivalent capacity
of one of the drives is used for parity information.
The capacity of the second logical volume will be 4095MB as the two drives form a mirror set
with the equivalent capacity of a single member.
Adding a Global Spare
A global spare will now be created on the last remaining drive (drive 2 of channel 1). A global
spare is a spare drive that is accessible to all the logical volumes on the Voyager 3000 system.
This means that if a drive fails in either of the two RAID sets created in the examples above
the global spare will take over for the failed drive. In this example a Global Spare will be
created on drive 2 of channel 1. To assign the Global Spare select the View and edit SCSI
drives option and select the drive (drive 2 of channel 1) and press
e on it. A dialog like
that in Figure 4-23 appears.
Select the Add Global Spare Drive option and answer YES to the prompt.
To create Local Spare select Add Local Spare Drive and then select the logical volume to
which you want to assign the local spare drive. Answer yes to the prompt.
It is also possible to assign a local spare drive when the RAID set is being created. This is
done by selecting the Add Spare Drive option as shown in Figure 4-17.
Figure 4-22 Viewing all Logical Drives
Figure 4-23 Adding Global Spare drive