IBM TotalStorage DS4300 Turbo, Installation, User'S, And Maintenance Manual, Page: 152 / 220

e. Verify that there is proper identification (such as a label) on the drive CRU,
and then slide it completely out of the storage subsystem.
5. Install the new drive CRU.
Attention: After you remove a drive CRU, wait 70 seconds before replacing or
reseating the drive CRU to allow the drive to properly spin down. Failure to do
so may cause undesired events.
a. Gently push the drive CRU into the empty bay until the tray handle
2
touches the storage-server bezel.
b. Push the tray handle
2
down into the closed (latched) position.
6. Check the drive LEDs.
a. When a drive is ready for use, the green Activity LED is either on
continuously or rapidly flashing, and the amber Drive fault LED is off.
b. If the amber Drive fault LED is on and not flashing, remove the drive from
the unit and wait 10 seconds; then reinstall the drive.
7. If the drive is part of a defined RAID array, the array reconstruction (without
hot-spare) or copy-back (with hot-spare) operation automatically starts.
Upgrading drives
You can upgrade drives in the following two ways:
v By adding drives to empty slots in the storage subsystem (see “Installing
hot-swap drives” on page 121)
v By replacing existing drives with larger capacity drives
Adding larger-capacity drives
This section provides guidelines for upgrading the drives in the storage subsystem.
Read the software documentation and this entire section to determine if you should
use this procedure, use a modified version of this procedure, or use a different
procedure that is provided by your operating system. Instructions that are provided
with your software should supersede anything stated in this document.
There are two methods for upgrading drives:
v Replacing all the drives at the same time
Figure 90. Drive latch on a hot-swap drive
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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User’s, and Maintenance Guide