| _____ | This document on System Administration provides both general explanatory information concerning the functioning of the HP-UX operating system, as well as detailed procedures for use in day-to-day administrative tasks and system customization (such as new software loads). It provides background information of interest to those requiring a more in-depth understanding of system functions. Please note that inclusion of system customization information does not constitute approval to alter your system from its standardized configuration.
The focus will be more on the performance of typical system management tasks as opposed to the work of system engineers, hackers and gurus.
Storage devices have become less expensive in the past several years and will continue to do so. System administrators who grew up managing systems during the expensive storage device era will no doubt have heart failure while trying to deal with the ‘wasted storage space’ requirements of modern hardware and software.
HP has developed arrays which when fully populated provide 24 Gigabytes of storage space - a massive amount of space at reasonable prices. However, with software overhead, and allocated space for active hot spare, mirroring and striping, not to mention the space allocated to RAID technology - this 24 GB space has been reduced to about 18GB of usable storage space.
In times not to far past 6GB of storage space was unheard of and would have been coddled and cherished as if it were made of the purest gold.
Please remember as you read these pages that we are in a time when nothing stays the same for very long. Systems and techniques that were adequate and perhaps even a little advanced for their time become outdated in weeks or months.
Bear with me. Step boldly into the future and remember that no good thing is ever accomplished without mistakes. Don’t be afraid to make them. That’s how you learn.
Everette C. Smith, R.L.S.
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