Maintaining Mirrored Systems

CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems

Adding new disks to a standard mirrored system

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Adding new disks to a standard mirrored system

The procedure in this section adds new disks to a system that is already mirrored. In order to use this procedure, your assigned boot disks must be the same as those assigned during a factory installation of disk mirroring. If your boot disk assignments differ from the standard factory arrangement (see the table immediately below), you must add the disks using the procedure in “Adding new disks to a nonstandard mirrored system” on page 66.

Boot-Disk Assignments for Factory-Installed Mirroring

Boot Disk 1

Boot Disk 2

Boot Disk 2

(E3000)

(E3500)

 

 

 

 

 

 

 

c0t0d0

c0t1d0

c1t4d0

 

 

 

New Enterprise 3000 internal disks are “hot swappable,” meaning they can be inserted into a running system. The operating system, however, will not recognize the new disks until the system has been rebooted.

1.Enter the command:

# /usr/opt/SUNWmd/sbin/metastat

Examine the output for the status of each metadevice. (It’s indicated in the Status:.... line.) All metadevices must have a status

of okay before you may proceed. Do not attempt this procedure while any metadevice is resynching or needs maintenance.

2.Do a CMSADM backup. For detailed instructions, see the Lucent Technologies Administration or Upgrades document for your version of CMS.

3.Turn off CMS:

a.Enter a cmsadm or cmssvc command.

b.Select the cms_run option.

c.Select the Turn off cms option.

4.Halt the system:

#/usr/sbin/shutdown -y -i0 -g0

5.Install the new disk drives by plugging them into the appropriate empty drive slots. Follow the instructions you received with the disk drives or with your basic system, or see the Lucent Technologies installation or maintenance document for your version of CMS.

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Lucent Technologies 585-210-940 manual Adding new disks to a standard mirrored system, # /usr/opt/SUNWmd/sbin/metastat

585-210-940 specifications

Lucent Technologies, founded in 1996 as a spin-off from AT&T, emerged as a leader in telecommunications, contributing significantly to the advancement of network technologies. The model 585-210-940, an innovative product from Lucent, exemplifies their commitment to providing cutting-edge solutions for communication networks.

The 585-210-940 is primarily recognized as a digital cross-connect system (DCS) designed to manage and route digital voice and data traffic efficiently. This system plays a crucial role in facilitating seamless communication by allowing service providers to interconnect different digital circuits and manage bandwidth effectively. One of the main features of the 585-210-940 is its ability to support multiple protocols, which enhances interoperability among diverse communication platforms.

A standout characteristic of this system is its scalability. The 585-210-940 can adapt to growing network demands, making it suitable for both small enterprises and large service providers. This flexibility ensures that users can expand their systems without a complete overhaul, thereby reducing costs and downtime during upgrades. Additionally, the system provides fault tolerance, ensuring high availability and reliability, which are essential metrics for any critical telecommunications infrastructure.

Lucent Technologies also integrated advanced monitoring and management capabilities into the 585-210-940. This feature allows operators to track performance metrics and identify potential issues in real time. The system includes a user-friendly interface that simplifies network management tasks, making it accessible to operators with varying levels of technical expertise.

Moreover, the 585-210-940 is designed to support high capacity, handling numerous channels simultaneously without compromising performance. This capability is particularly beneficial in environments with heavy data traffic, such as urban centers or large corporate hubs.

In conclusion, Lucent Technologies' 585-210-940 serves as a robust solution for telecommunications, encapsulating many of the core innovations of the late 20th century. With its support for multiple protocols, scalability, fault tolerance, and advanced management capabilities, it stands out as an essential component for any modern communication network, reflecting Lucent's legacy in the industry.