IBM NeXtScale nx360 M4 Installation And Service Manual page 165

Figure 66. 3.5-inch hard disk drive installation
8. Check the hard disk drive status indicator to make sure that the hard disk
drive is operating correctly. After you replace a failed hard disk drive, the green
activity LED flashes as the disk spins up. The yellow LED turns off after
approximately 1 minute. If the new drive starts to rebuild, the yellow LED
flashes slowly, and the green activity LED remains lit during the rebuild
process. If the yellow LED remains lit, see the "Hard disk drive problems" on
page 62 for more information.
Note: You might have to reconfigure the disk arrays after you install hard disk
drives. See the RAID documentation on the IBM website at
http://www.ibm.com/supportportal for information about RAID adapters.
After you install the hard disk drive backplate, complete the following steps:
1. Install the cover onto the compute node (see "Installing the compute node
cover" on page 111 for instructions).
2. Install the compute node into the chassis (see "Installing a compute node in a
chassis" on page 97 for instructions).
Removing a 2.5-inch hard disk drive
Use this information to remove a 2.5-inch hard disk drive.
Attention: Static electricity that is released to internal server components when
the server is powered-on might cause the server to halt, which might result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when you work inside the server with the
power on.
To remove a 2.5-inch hard disk drive, complete the following steps.
1. Read "Safety" on page vii and "Installation guidelines" on page 93.
2. If the compute node is installed in an IBM NeXtScale n1200 Enclosure, remove
it (see "Removing a compute node from a chassis" on page 96 for instructions).
3. Carefully lay the compute node on a flat, static-protective surface, orienting the
compute node with the bezel pointing toward you.
3.5-inch Hard disk drive
3.5-inch Hard disk
drive cage
Chapter 5. Removing and replacing components
147