Use caution when working in any potential safety hazardous
situation that is not covered in the safety checks. If unsafe conditions
are present, determine how serious the hazards are and whether you
can continue before you correct the problem.
Before you start the safety inspection, make sure that the
power is off, and that the power cord is disconnected.
Each device has required safety items installed to protect
users and IBM® service
personnel from
injury. This guide addresses only those items.
Important: Good judgment
must also be used to identify potential safety hazards due to the
attachment of non-IBM features
or options not covered by this inspection guide.
If
any unsafe conditions are present, you must determine how serious
the apparent hazard could be and whether you can continue without
first correcting the problem. For example, consider the following
conditions and their potential safety hazards:
- Electrical hazards (especially primary power)
- Primary voltage on the frame can cause serious or lethal electrical
shock.
- Explosive hazards
- A damaged CRT face or a bulging capacitor can cause serious injury.
- Mechanical hazards
- Loose or missing items (for example, nuts and screws) can cause
serious injury.
To inspect each SAN Volume Controller node
for unsafe conditions, perform the following steps. If necessary,
see any suitable safety publications.
- Turn off the SAN Volume Controller and
disconnect the power cord.
- Check the frame for damage (loose, broken, or sharp edges).
- Check the power cables using the following steps:
- Ensure that the third-wire ground connector is in good
condition. Use a meter to check that the third-wire ground continuity
is 0.1 ohm or less between the external ground pin and the frame ground.
- Ensure that the power cord is the appropriate type,
as specified in the parts listings.
- Ensure that the insulation is not worn or damaged.
- Check for any obvious nonstandard changes, both inside
and outside the unit. Use good judgment about the safety of any such
changes.
- Check inside the SAN Volume Controller for
any obvious unsafe conditions, such as metal particles, contamination,
water or other fluids, or marks of overheating, fire, or smoke damage.
- Check for worn, damaged, or pinched cables.
- Ensure that the voltage that is specified on the product-information
label matches the specified voltage of the electrical power outlet.
If necessary, verify the voltage.
- Inspect the power-supply assemblies and check that the
fasteners (screws or rivets) in the cover of the power-supply unit
have not been removed or disturbed.
- Before connecting the SAN Volume Controller to
the storage area network (SAN), check the grounding.