Digital Equipment StorageWorks UltraSCSI DS-BA370 Series, User Manual

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Storage Devices
UltraSCSI RAID Enclosure 7–3
SBB Device Address
Determining the SBB device address is a function of the following:
•
The PVA–determined enclosure address (0, 2, or 3)
•
The SBB enclosure shelf location
SBB Status Reporting
StorageWorks shelves monitor the status of the storage SBBs. When a fault
occurs, the fault and the SBB device address (SCSI target ID) are reported
to the array controller or host for processing The SBB LEDs define the
status of the individual SBBs.
Each storage SBB has two LED indicators (see Figure 7–2) that display the
SBBs status. These LEDs have three states: on, off, and flashing.
Figure 7–2 SBB Status LEDs
CXO-4652A-MC
Device
activity
(Green)
Device
fault
(Amber)
•
The green LED is the device activity LED and is on or flashing when
the SBB is active.
___________________ Caution ____________________
Removing a storage SBB when the upper LED is on or flashing
can comprise data integrity.
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