Nortel Networks 400 4.0, BCM200 manual Accessing disk mirroring through Element Manager

222Chapter 19 System monitoring and troubleshooting

•If you replace a RAID hard disk on site, the BCM system status monitor service automatically detects the presence of a RAID device. The system copies the data from the programmed disk to the blank replacement disk. In this case, the programmed hard disk is the mirror master.

•If you replace a RAID primary master disk on site, the mirror master disk acts as the primary data source (mirror master). The system status monitor service identifies the new blank primary master disk and instructs the RAID to copy the data from the mirror master disk to the primary master disk. In this case, the mirror master hard disk is the mirror master.

Use one of the following two methods to access the disk mirror functions:

•“Monitoring or configuring disk mirror settings using Element Manager” on page 222

•“BCM system does not function” on page 226

The disk mirror function allows you to:

•monitor RAID card operational status

•monitor disk operational status

•monitor disk mirror status

•change a standard hard disk configuration to a RAID configuration

•replace a primary master or mirror master hard disk in an existing RAID configuration

Monitoring or configuring disk mirror settings using Element Manager

Use the procedures in this section to ensure all disk mirroring configuration settings are correct. Use Element Manager to change the disk mirror settings to the default values if required. The procedures described in this section are valid only for those systems equipped with a RAID configuration.

Accessing disk mirroring through Element Manager

Use this procedure to review the primary master and mirror master hard disk settings on systems equipped with a RAID configuration. Use Element Manager in this procedure to monitor the RAID disk mirror operation.

Note: You must ensure the system status monitor service is running to monitor primary master and mirror master disk operation and disk mirroring activity.

To access disk mirroring

1Access Element Manager after system bootup is complete.

2From the Administration tab, click System Status, and then click Disk Mirroring. The Disk Mirroring screen displays (see Figure 103).

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