Inspecting The San Volume Controller For Unsafe Conditions - IBM 2145-8F4 Installation Manual

Attention: These notices indicate possible damage to programs, devices, or data.
An attention notice appears before the instruction or the situation in which damage
might occur.
Note: These notices provide important tips, guidance, or advice.
Use the reference numbers in parentheses, for example (1), at the end of each
notice to find the matching translated notice. For all danger, caution, and attention
notices, see the IBM System Safety Notices.

Inspecting the SAN Volume Controller for unsafe conditions

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 the power is off, and the power
cord is disconnected.
Each machine has required safety items installed to protect users and service
personnel from injury. This guide addresses only those items.
Important: Good judgment must also be used to identify potential safety hazards
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)
Explosive hazards
Mechanical hazards
Perform the following steps to inspect each SAN Volume Controller node for
unsafe conditions. If necessary, see any suitable safety publications.
1. Turn off the SAN Volume Controller and disconnect the power cord.
2. Check the frame for damage (loose, broken, or sharp edges).
3. Check the power cables using the following steps:
4. Check for any obvious nonstandard changes, both inside and outside the
xii
IBM System Storage SAN Volume Controller: Installation Guide
due to attachment of non-IBM features or options not covered by this
inspection guide.
Primary voltage on the frame can cause serious or lethal electrical shock.
A damaged CRT face or a bulging capacitor can cause serious injury.
Loose or missing items (for example, nuts and screws) can cause serious
injury.
a. 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.
b. Ensure that the power cord is the appropriate type, as specified in the parts
listings.
c. Ensure that the insulation is not worn or damaged.
machine. Use good judgment about the safety of any such changes.