Powering The Ibm Nas 300 On And Off; Powering On When Clustering Is Active - IBM TotalStorage 300 Service Manual

Powering the IBM NAS 300 on and off

This section contains instructions for powering the IBM NAS 300 on and off under
normal and emergency situations. The clustering function requires special
considerations when you need to power on or off. This section gives the details for
those considerations.
If you are powering on the IBM NAS 300 after an emergency shutdown, see
"Restoring power after an emergency" on page 43.

Powering on when clustering is active

1. Power on any UPS and allow it to return to normal operation.
2. Power on any network hubs or switches .
3. Power on all 5192 Network Attached Storage Storage Units and 3534 Managed
4. Power on each 5191 RAID Storage Controller. After about three to four minutes,
5. Power on the node that you shut down last in the powering off procedure.
6. Once the node comes up, start Cluster Administrator on that node and make
7. If no problems exist and all clustered resources are online, power on the node
42
IBM NAS 300 Service Guide
Table 12. LEDs located on rear panel of a storage unit (continued)
Intermittent or Some or all
sporadic power CRUs
loss to the storage
server
Unable to access Drives and
drives Fibre
Channel
loop
Hubs. Give the 3534 Managed Hubs about three minutes to start up.
the storage controllers will have completed their startup routine. You can verify
this by making sure that for each drive in the storage controller and for each
drive in the storage unit, the status LED (on the top front of the drive) is solid
green (not blinking) for at least five seconds.
sure that all resources are in an online state or shortly return to that state.
that you shut down first in the powering off procedure. Each resource for which
that node is the preferred owner will fail back to that node and return to an
online state.
Defective ac power source or
partially plugged-in power cord
Power supply has failed
Midplane has failed
Fibre Channel cabling has
failed
RAID controller has failed
GBIC has failed
Check the ac power
source. Reseat all
installed power cables
and power supplies. If
applicable, check the
power components.
Replace defective
power cords. .
Check for a Fault LED
on the power supply,
and replace the failed
CRU.
Replace the midplane
Insure that the Fibre
Channel cables are
undamaged and
properly connected
Replace the RAID
controller
Insure GBIC is seated
properly; replace GBIC