Table of Contents
Advertisement
Table 36. Drive LED activity (continued)
LED
Activity LED
Activity and
Fault LEDs
v Fibre-channel loop IDs: When you install an E-DDM in the storage expansion
v Hot-swap hardware: The EXP810 contains hardware that enables you to
Installing hot-swap hard disk drives
With the exception of the DS4000 storage subsystem initial power up, IBM
recommends that you add E-DDMs while the storage expansion enclosure is turned
on and running. Complete the following steps to install hot-swap E-DDMs in the
storage expansion enclosure:
Attention:
reseating it to allow it to properly spin down. Failure to do so may cause undesired
events.
1. Read the documentation that comes with the E-DDM.
2. Check for Fault LEDs shown in Figure 50. If any amber LEDs are lit, see
Figure 50. Hot-swap E-DDM LEDs
3. Determine the bay into which you want to install the E-DDM.
4. Remove the blank tray by completing the following steps:
94
IBM System Storage DS4000 EXP810 Storage Expansion Enclosure: Installation, User's and Maintenance Guide
LED state
Flashing once
every 2
seconds
Flashing
together in a
certain pattern
enclosure, the drive tray connects into a printed circuit board called the midplane.
The midplane sets the fibre-channel loop ID automatically, based on the setting
of the enclosure ID and the physical location (bay) of the E-DDM CRU.
replace a failed E-DDM without turning off the storage expansion enclosure. You
can continue to operate your system while an E-DDM is removed or installed.
These E-DDMs are known as hot-swap E-DDMs.
After you remove an E-DDM CRU, wait 70 seconds before replacing or
"Solving problems" on page 125.
a. Release the latch on the E-DDM CRU by pressing on the inside of the
bottom of the tray handle.
b. Lift the closed latch to its open position. (The latch is at a 90° angle to the
front of the E-DDM when open.)
Descriptions
Check for and resolve one of the following situations:
v EXP810 is not connected to the DS4000 storage
subsystem.
v DS4000 storage subsystem controller firmware is not
06.16.xx.xx and higher.
Drive failure due to the incorrect EXP810 enclosure speed
setting or internal drive hardware failures.
Advertisement
Table of Contents
