For example, this command updates the volume on the secondary host calamari from the primary host volume:

#sndradm -un calamari:/dev/vx/rdsk/rootdg/tony1

To correctly display the volume set name, use the sndradm -pcommand on the primary host. See “To Find the Volume Set Name” on page 16.

Using the dsstat Command Incorrectly

An administrator might use the dsstat(1M) command instead of sndradm -pto find the volume set name. The output of both commands only appears to be similar

# dsstat -m sndr

 

 

 

 

 

 

 

Name

t

s

pct

role

kps

tps

svt

sk/rootdg/tony1

P

L

0.00

net

0

0

0

sk/rootdg/bmap1

 

 

 

bmp

0

0

0

 

 

 

 

 

 

 

 

Issuing the sndradm -pCommand on the Secondary Host Incorrectly

An administrator might use the sndradm -pcommand to find the volume set name correctly but issue the command from the secondary host incorrectly. Depending on which host you issue the command from, the output differs. For example, when issued from the primary host, the command shows the correct volume set name of calamari:/dev/vx/rdsk/rootdg/tony1:

# sndradm -p

 

/dev/vx/rdsk/rootdg/tony1

-> calamari:/dev/vx/rdsk/rootdg/tony1

When issued from the secondary host, the command shows the incorrect volume set name. The name ariell:/dev/vx/rdsk/rootdg/tony0 is the name of the primary host and its volume set.

#sndradm -p

/dev/vx/rdsk/rootdg/tony0 <- ariell:/dev/vx/rdsk/rootdg/tony0

Chapter 2 Remote Mirror Software Troubleshooting Tips 15

Page 25
Image 25
Sun Microsystems 3.2 manual Using the dsstat Command Incorrectly

3.2 specifications

Sun Microsystems 3.2, often referred to as SunOS 3.2, was a notable release of the Sun operating system that emerged during the rapidly evolving landscape of computer technology in the early 1980s. This operating platform was designed specifically for Sun Workstations, utilizing the robust hardware architecture developed by Sun Microsystems. The introduction of SunOS 3.2 marked a significant step forward in the development of UNIX-like operating systems optimized for entrepreneurship and scientific applications.

One of the main features of SunOS 3.2 was its adherence to the Berkeley Software Distribution (BSD) model, which allowed for advanced networking capabilities, enhanced performance, and efficient resource management. BSD's influence provided SunOS 3.2 with TCP/IP networking protocols, allowing users to connect to other devices seamlessly and manage network resources easily. This feature was crucial during a time when networking was becoming increasingly vital for organizations.

The system's support for virtual memory was another innovative characteristic. SunOS 3.2 utilized demand paging, which allowed programs to use more memory than was physically installed on their machines, significantly improving multitasking and overall system responsiveness. This capability was particularly advantageous for enterprises that relied on large-scale computations and data analysis.

SunOS 3.2 also introduced support for the Sun Window System, which meant users could utilize graphical user interfaces for interacting with applications, moving away from purely text-based command interfaces. This transition paved the way for more intuitive user experiences in the realm of computing, making powerful UNIX capabilities more accessible.

The inclusion of software utilities such as the C shell (csh) and a variety of development tools further strengthened SunOS 3.2’s position as a suitable platform for developers. The system provided robust development environments for programming in languages like C and assembly, catering to custom application requirements across different industries.

Lastly, security features were integrated into SunOS 3.2 to safeguard sensitive data and enhance system integrity. Permission settings and user authentication mechanisms were refined, allowing organizations to securely manage their computing resources.

In summary, SunOS 3.2 represented a landmark evolution in operating systems, showcasing a blend of advanced networking, memory management, graphical user interface, development tools, and security—elements that defined a generation of computing within the high-performance ecosystem of Sun Microsystems.