Chapter 5. Replacing Components
EK–SMCPP–UG. A01
5–7
5.5.1 Replacement Method
The method used to replace a device must preserve the integrity of the data and
either the controller or the operator must determine that the swap is necessary.
Replacing an SBB involves quickly removing and replacing a storage device
SBB using the hot-swap method. During this method of device replacement the
complete system remains on-line and active during device removal or insertion.
The device being removed or inserted is the only device in the system that
cannot perform operations during this process.
CAUTION
The hot-swap method supports removing and
replacing a single storage SBB. You must repeat
the complete procedure for each SBB you are
replacing.
5.5.2 Before You Replace a Storage SBB
Whenever you replace a storage SBB you must consider the following factors:
•
Installing a different model device requires you to reconfigure the subsystem
•
You do not need electrostatic discharge (ESD) protection (such as an ESD
wrist strap) to replace an SBB. However, you can cause ESD damage by
touching the SBB connector. Always use both hands to remove or install an
SBB
5.5.3 SBB Replacement
The procedures for replacing a storage SBB accomplish the following:
•
Preserve data integrity
•
Ensures that the controller performs in a predictable manner
•
Reduce the amount of time a port and the associated devices are not available
•
Removing or inserting a storage SBB generates the C_SWAP low signal.
Table 5-1 describes the expected controller responses
