User's Manual

Up to 14 disk drives can be installed in a drive enclosure.
Disk drive status indicators
Three status indicators display the drive operational status. Figure 11 (page 24) shows the disk
drive status indicators. Table 4 (page 24) provides a description of each status indicator.
Figure 11 Disk drive status indicators
2. Online1. Activity
3. Fault
Table 4 Disk drive status indicator descriptions
DescriptionStatus indicator
This green status indicator flashes when the disk drive is being
accessed. It is on when the drive is idle.
Activity
The green status indicator is on when the disk drive is online
and operating normally. This indicator will be off in the
following situations:
Online
• There is no controller on the bus.
• +5.1 VDC is not available.
• The drive is not properly installed in the enclosure.
This amber status indicator is on when there is a disk drive
failure. Depending on the host controller, this indicator may
flash when the controller detects an error condition.
The amber status indicator flashes in synchronization with
the other two status indicators in response to the EMU locate
command.
Fault
Disk drive status displays
The disk drive status indicators can assume three states: on, off, or flashing. The status indicators
states for operational drive status are shown in Table 5 (page 24). See Table 6 (page 25) for the
non-operational drive status indicator states.
Table 5 Operational disk drive status indications
DescriptionFaultOnlineActivity
Initial startup.OffOnFlashing
The drive is online but is not being accessed.OffOnOn
The drive is being located.FlashingFlashingFlashing
The drive is operational and active.OffOnFlashing
24 Enterprise Virtual Array hardware components