IBM DCS3860, Инструкция по установке, использованию и обслуживанию

Страница: 107 / 204

v
Read the safety and handling guidelines in “Safety” on page ix and in
“Handling static-sensitive devices” on page 26.
v
Ensure that the current system configuration is working properly.
v
Back up all important data before you make changes to data storage devices.
v
Ensure that you wear an anti-static wrist strap.
Before you install or remove DDM FRUs, review the following information:
v DDM FRUs:
– When adding DDM FRUs, if you are not installing all 60 DDM FRUs into the
DCS3860, install the DDM FRUs in each drive drawer in the front row (slots
1, 4, 7, and 10). To maintain uniform airflow across all drive drawers, the
storage expansion enclosure must be configured with at least 20 drives, with
four drives in the front row of each of the five drive drawers (slots 1, 4, 7,
and 10).
– Using non-supported drives in the storage expansion enclosures can cause the
storage expansion enclosures to fail.
– After you remove a DDM FRU, wait for 90 seconds before replacing or
reseating it to allow it to properly spin down.
v
Drive LEDs: Each DDM FRU enclosure has three associated LEDs, a green drive
power/drive activity LED, an amber Service Action Required LED, and a blue
Service Action Allowed LED. These LEDs indicate the status for that DDM. See
Table 19 for the drive LED states and descriptions.
v
DDM FRUs are not interchangeable between the DCS3860 and the EXP5060
storage expansion enclosure.
Table 19. Drive LED activity
LED LED state Descriptions
Activity LED Flashing green A flashing green LED indicates Fibre Channel activity to
the drive.
Activity LED Steady green The green LED indicates that the drive is properly
installed and is spun up by the DCS3860 controller.
Service Action
Required LED Flashing
amber A flashing amber LED indicates that a drive has been
identified by the software.
Service Action
Required LED Steady amber The amber LED indicates a drive failure. The drive can
also be put in a failed state if the drive is not certified for
the DCS3860 storage system. Use the DS Storage Manager
Subsystem management window to verify that this is the
case and replace the drive with the drive option or FRU
that is certified for that particular storage system.
Activity and
Service Action
Required LEDs All unlit Check for and resolve the following situation:
v
DCS3860 is turned off.
Activity LED Off Check for and resolve one of the following situations:
v
Drives are part of an exported array. Once the array is
exported, the drives in the array are spun down so that
they can be removed from the enclosure.
v
Drives are failed by the storage system controllers.
v
Failed drive drawer.
Activity and
Service Action
Required LEDs Flashing
together in a
certain pattern Drive failure due to internal drive hardware failures.
Chapter 5. Replacing components
89