Replacing Failed Hard Disk Drives; How To Locate Failed Disks; Procedures To Replace Failed Disks - NEC Express5800/R320g-M4 Maintenance Manual

Chapter 2 Configuring and Upgrading the System
1.3

Replacing Failed Hard Disk Drives

The following describes how to locate and replace the failed hard disk drive.
1.3.1

How to Locate Failed Disks

1. Click Start – RDR – RDR Utility to start RDR Utility.
2. From the tree on the left pane of RDR Utility, select each disk and check the property about MTBF in the
right pane.
Description of the property about MTBF
Property name
MTBF: HardCurrent
MTBF: HardNumberOfFaults
MTBF: SoftCurrent
MTBF: SoftNumberOfFaults
If either of the values is different from the normal value, the disk has an error.
1.3.2

Procedures to Replace Failed Disks

This section describes a procedure for replacing a disk when a failure occurs to a disk that is duplexed by the
RDR function.
Here, an example that a failure of the disk in slot 1 of the PCI module 10 is explained.
1. Click Start – RDR – RDR Utility to start RDR Utility.
2. Remove the disk in the slot 1 of the PCI module 10.
3. Wait for at least 15 seconds, and insert a new disk to the slot 1 of the PCI module 10.
If a popup window asking for rebooting the system is displayed, select Restart Later and close the
popup window.
Express5800/R310g-E4, R320g-E4, R320g-M4 Maintenance Guide (Windows)

When a failure occurs to a disk that is NOT duplexed by the RDR function,
Important
contact a staff member from the maintenance service company.

The failed hard drive disk should be replaced with RDR Utility running.
Mean time between hardware failures.
Mean number of hardware failures.
Mean time between software failures.
Mean number of software failures.

Do not refresh RDR Utility status frequently right after inserting a disk.
Important

For a disk to be inserted, use a new or physically formatted disk which has the
same capacity as the disk of the corresponding slot (in this example, the disk in
slot 1 of the PCI module 10)

When the disk is physically formatted and recycled, the inserted disk might be
automatically set to RDR.
Tips The display of RDR Utility is not updated automatically. Therefore, update it every time you
check the status of disks by clicking Refresh from Action on the menu or pressing <F5>.
Description
* The normal value denotes the value of when no error has occurred.
1. Hard Disk Drive Operations
Normal value*
Unknown
0
Unknown
0
133