Working With Hot-Swap Drives - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

Working with hot-swap drives

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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User's, and Maintenance Guide
controllers that have just been replaced. If the controllers are not up, you
will get a controller-connection error window instead of the controller
properties window. Wait a minute and retry until you get the properties
window.
v Check the LEDs at the back of each controller. All Fault LEDs should be off
and the Host Loop and Expansion Loop LEDs should be on.
20. If the Fault LED is on, the Host Loop LED and the Expansion Loop LED stay
off, or any other Fault LED is on, see the Storage Manager client for problem
determination.
Note: The battery LED may be flashing indicated battery charging is in
progress.
21. After the controllers finish rebooting, their WWNNs will change. If you have
applications that rely on the previous DS4300 controller WWNNs (such as fibre
channel switch zoning definitions) you must update the applications with the
new WWNNs.
22. Enable caching on both controllers.
23. Verify firmware and NVSRAM. Reload the firmware and NVSRAM to the
version shipped on the Turbo option CD. Then, check the IBM Web site for any
firmware updates.
24. If applicable, re-enable your premium features using the premium features key
files of the controllers that you replaced.
This section explains how you can increase the storage-server capacity by adding
more drives or replacing existing drives with ones containing a larger capacity.
Figure 88 shows the location of the hot-swap drive bays that are accessible from
the front of the storage subsystem. To maintain proper cooling within the storage
subsystem, always keep a filler panel in each drive bay that does not contain a
drive CRU.
Attention: The disk drive modules for the DS4300 storage subsystem and/or
EXP700 and EXP710 storage expansion enclosures are not the same as the SATA
disk drive modules for the EXP100 nor the FC or SATA enhanced disk drives
modules for the EXP810. The DS4300/EXP700/EXP710, EXP100 and EXP810 use
different non-interchangeable drive options and CRUs. Please order the correct
options/CRUs for the enclosures in your configuration. Force-fitting insertion of the
incorrect disk drive modules may cause damage to the drive CRUs or the enclosure
chassis slots /backplane. IBM does not sell or provide replacement parts to change
the drive CRU form factors.
Figure 88. Location of hot-swap drives
Hot-swap
drive CRU