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Replacing the disk drives

Downgrading a multi-disk C1200 to a single-disk C1200

Considerations for downgrading your system  Top

If your C1200 is a multi-disk system, you can remove all but the first disk drive and run the system with a single drive. You must consider the following if you downgrade your system to a single disk:

For more information about RAID and disk drive capabilities, see the NetCache Administration Guide.

Downgrading the system  Top

To downgrade the system from a multi-disk Raid-4 system to a single-drive RAID-0 system, complete the following steps.

Step

Action

1

Back up your data, as described in the NetCache Administration Guide.

2

Enter the following command on the system console:

halt
Result

System activity is suspended to the disks. It might take several minutes for system activity to cease completely.

3

Turn off the appliance power and unplug it from the power source.

4

While grounded, remove the bezel, then press the release button on the disk drive carrier handle to unlock the drive.

5

If you have...

Then...

A system with three disk drives

  1. Press the release button on the disk drive carrier handle to unlock the drive in disk slot 2.
  2. Swing the drive carrier handle away from the appliance and slide the drive out of the disk drive bay.
  3. Install the slot cover over the empty disk drive slot.
  4. Repeat Steps 1 through 3 for the disk drive in disk slot 1.
  5. Go to Step 6.

A system with two disk drives

  1. Press the release button on the disk drive carrier handle to unlock the drive in disk slot 1.
  2. Swing the drive carrier handle away from the appliance and slide the drive out of the disk drive bay.
  3. Install the slot cover over the empty disk drive slot.
  4. Go to Step 6.
6

Connect the system to the power source, then press the Power button on the front panel to reboot the system. The green power LED is lit when the power is on.

Result:

The system boots, then displays the following prompt:

Press Ctrl-C for special boot menu
7

Press Ctrl-C on your keyboard and select 4 from the following menu:

Result

The console displays the following menu:

1) Normal Boot 
2) Boot without starting system devices 
3) Change Password 
4) Initialize all disks 
5) Maintenance mode boot 
Selection (1-5)? 
8

Enter Y to the following questions, to begin initialization.

Zero disks and install a new file system?

This will erase all the data on the disks, are you sure? 
9

Reinstall the NetCache software, as described in the NetCache Administration Guide.

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