Maintaining Mirrored Systems

CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems

Adding new disks to a standard mirrored system

65

 

 

 

13.Add the new disks to the existing metadevices by entering the following command:

# olds -mirrored -setup <newdisk1> <newdisk2>

(where, again, <newdisk1> and <newdisk2> are the device names of the disks you have added).

The system responds with the following:

Warning: Current Disk has mounted partitions.

device: c0t6d0

will not be

used

. . .

 

 

 

d19: component

is attached

 

d20: component

is attached

 

. . .

 

 

 

d21: submirror

d20

is attached

Success, growing

d21

 

Success, the

capacity of

the /cms mirror has increased.

#

 

 

 

 

 

 

 

14.Restart CMS by entering the cmsadm or cmssvc command and selecting the cms_run option. When the run option menu displays, select start cms.

15.Check the available disk space by entering a df -kcommand. For example:

# df -k

 

 

 

 

 

Filesystem

kbytes

used

avail capacity

Mounted on

/dev/md/dsk/d13

772038

538683

156155

78%

/

/proc

0

0

0

0%

/proc

fd

0

0

0

0%

/dev/fd

/dev/md/dsk/d21

3059955

192497

4967458

7%

/cms

 

 

 

 

 

 

Compare the avail figure for /cms to the figure you recorded in Step 8; it should show an increase roughly equal to one-half of the total capacity of the drives added.

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Lucent Technologies 585-210-940 manual # olds -mirrored -setup newdisk1 newdisk2
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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.
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