PI DataStorage
A time-series archive that securely stores -- and makes instantly available -- a nearly limitless amount of accurate, consistent operational data.
Component Summary
Some data archive systems allow you to look at trends in order to conclude what probably happened in your process. PI DataStorage can tell you exactly what happened. That's because PI DataStorage records a nearly limitless amount of data, all at their original resolution, for as long as they are needed.
PI DataStorage's intelligent data collection process is not only efficient, it is also amazingly accurate -- recording thousands of data points per second. Rather than expending resources gathering like values, it records only those data that exceed an acceptable range of values (which you determine). This method greatly reduces the required amount of stored data points, while increasing their accuracy and resolution.
In other words, it only records what matters. While other systems spend their time carefully recording the fact that nothing happened, PI DataStorage only concerns itself with pertinent information. The result is highly efficient, highly accurate data, which are easily available, virtually forever.
Technical Overview
PI DataStorage, working with the Universal Data Server, handles the collection, storage, and retrieval of numerical and string data. It utilizes a "swinging-door compression" system that discards data that fall within an acceptable range of values, or within a "compression deviation blanket." (The compression deviation blanket is a parallelogram extending between the last recorded value and the new value with a width equal to twice the compression deviation specification.) When a new data point is received, the previous data are only recorded and held in DataStorage if they fall outside the compression deviation blanket. PI DataStorage can accommodate both small and large amounts of data for extended periods of time.
System Requirements
Hardware
- Pentium III/IV multiprocessor class machine
- 30 GB storage or RAID system
- 1 GB RAM
Software
- NT/2000
- HPUX
- Solaris
- AIX
- AIX/2000 server
- VAX/VMS
Component Summary
Some data archive systems allow you to look at trends in order to conclude what probably happened in your process. PI DataStorage can tell you exactly what happened. That's because PI DataStorage records a nearly limitless amount of data, all at their original resolution, for as long as they are needed.
PI DataStorage's intelligent data collection process is not only efficient, it is also amazingly accurate -- recording thousands of data points per second. Rather than expending resources gathering like values, it records only those data that exceed an acceptable range of values (which you determine). This method greatly reduces the required amount of stored data points, while increasing their accuracy and resolution.
In other words, it only records what matters. While other systems spend their time carefully recording the fact that nothing happened, PI DataStorage only concerns itself with pertinent information. The result is highly efficient, highly accurate data, which are easily available, virtually forever.
Technical Overview
PI DataStorage, working with the Universal Data Server, handles the collection, storage, and retrieval of numerical and string data. It utilizes a "swinging-door compression" system that discards data that fall within an acceptable range of values, or within a "compression deviation blanket." (The compression deviation blanket is a parallelogram extending between the last recorded value and the new value with a width equal to twice the compression deviation specification.) When a new data point is received, the previous data are only recorded and held in DataStorage if they fall outside the compression deviation blanket. PI DataStorage can accommodate both small and large amounts of data for extended periods of time.
System Requirements
Hardware
- Pentium III/IV multiprocessor class machine
- 30 GB storage or RAID system
- 1 GB RAM
Software
- NT/2000
- HPUX
- Solaris
- AIX
- AIX/2000 server
- VAX/VMS