Other Client/

Server

Settings

Replication

The maximum number of concurrent IPC connections to a TimesTen Server allowed by TimesTen is 9,999. However, system limits can take precedence on the number of connections to a single DSN. Client/ Server users can increase the file descriptor limit to support a large number of connections and processes.

For example, on Solaris, you may change the file descriptor limit to have a maximum of 1024 simultaneous server connections by adding the line:

set rlim_fd_max = 1080

in /etc/system.

In this case, 1080 is greater than the number of anticipated client/server connections and allows for a few extra connections.

AIX

For replication, TCP send and receive buffers should be increased to a minimum of 512KB. You may need to embed the following commands into a script that can be run at system boot time:

#/usr/sbin/no -p -o tcp_recvspace=524288

#/usr/sbin/no -p -o tcp_sendspace=524288

 

HP-UX

Semaphores

On HP-UX systems, to connect to more than 2 data stores

simultaneously, you must increase the value of the kernel parameter

 

semmns.

 

To view existing kernel parameter settings, log in as user root.

 

For HP-UX 11i, use the command:

 

# /usr/sbin/kmtune

 

For HP-UX 11iv2, use the command:

 

# /usr/sbin/kctune

Shared

On HP-UX systems, you also must increase the value of the parameter

memory

shmmax. To make these changes:

1.Use the kmtune or kctune commands above, or run the HP System Administration Manager to see existing kernel parameter settings:

# /usr/sbin/sam

2.Double-click Kernel Configuration, then double-click Configurable Parameters.

26Oracle TimesTen In-Memory Database Installation Guide

Page 34
Image 34
Oracle Audio Technologies B31679-01 manual Other Client Server Settings Replication, Semaphores, Shared, Memory

B31679-01 specifications

Oracle Audio Technologies has long been known for its commitment to high-end audio equipment that delivers superb sound quality and innovative design. One standout product from the company is the Oracle B31679-01, a remarkable turntable that showcases their expertise in the audio domain.

The B31679-01 embodies advanced engineering principles and a passion for music reproduction. At the heart of its design is a highly rigid yet lightweight chassis that minimizes vibrations, ensuring that the audio signal remains pure and uncolored. This attention to vibration isolation is critical, as even the slightest interference can compromise the clarity and fidelity of the sound. The turntable is constructed using premium materials that enhance performance and aesthetic appeal, adding an element of sophistication to any audio setup.

One of the key features of the Oracle B31679-01 is its sophisticated suspension system. The innovative suspension technology helps decouple the turntable from external vibrations and resonances, creating a stable platform for vinyl playback. This is particularly important in environments with background noise or potential disturbances, allowing users to experience their music as intended.

Another notable characteristic of the B31679-01 is its precision-engineered tonearm. The tonearm is designed for optimal tracking, ensuring that the stylus maintains contact with the record groove, capturing every nuance of the music. By minimizing tracking error and optimizing weight distribution, the tonearm enhances overall soundstage and detail, allowing audiophiles to rediscover their vinyl collection with newfound appreciation.

In terms of motor technology, the Oracle B31679-01 features a high-torque, low-noise motor that provides reliable and consistent speed. This is crucial for vinyl playback, as variations in speed can lead to pitch inaccuracies and a less enjoyable listening experience. The motor's design is engineered to operate quietly, ensuring that no unwanted noise enters the audio signal.

The Oracle B31679-01 also stands out with its customizable features, allowing users to tailor their experience to their personal taste. From cartridge compatibility to adjustable settings, the turntable accommodates a wide range of preferences, making it a versatile choice for both casual listeners and serious audiophiles.

In summary, the Oracle B31679-01 combines advanced engineering, premium materials, and innovative technologies to create a turntable that excels in sound quality and performance. Its focus on vibration isolation, precise tonearm design, reliable motor operation, and customization options make it a distinguished choice for those seeking an exceptional vinyl experience. Oracle Audio Technologies continues to set high standards in the audio industry, and the B31679-01 is a testament to their dedication and expertise.