Juniper Networks C4000, C2000 manual Managing Disks in a C-series Platform, Replacing a Disk

C2000 and C4000 1.0.x Hardware Guide

Managing Disks in a C-series Platform

The SRC CLI provides commands to let you monitor disk status, replace faulty disks, and reinitialize disks in the system.

Replacing a Disk

If a disk in the C-series platform fails, you can replace it while the other disk remains active.

To replace a disk:

1.Disable the disk.

user@host> request disk disable device 0 1

2.Remove the disk from the system.

3.Insert a new disk.

4.Enable the disk.

user@host> request disk enable device 0 1

5.Initialize the new disk.

user@host> request disk initialize device 0 1

The command generates data on the disk that enables the disk controller to manage the disk. The disk controller copies data from the other disk and establishes mirroring between the two disks.

6.Verify that the disk is initialized. user@host> show disk status

C:ID:L	Device Type		Blocks	Bytes/Block	Usage	Shared Rate
------	--------------		--------- -----------		---------------- ------ ----
0:00:0	Disk		145226112	512	Initialized	NO	150
0:01:0	Disk		145226112	512	Initialized	NO	150
	Smart	Method of		Enable
	Capable	Informational		Exception	Performance	Error
C:ID:L	Device	Exceptions(MRIE)		Control	Enabled	Count
------	-------	----------------		---------	-----------	------
0:00:0	Y		6	Y	N	0
0:01:0	Y		6	Y	N	0

40■ Managing Disks in a C-series Platform