volumes

English translation: volumes

13:50 Jul 21, 2018
English language (monolingual) [PRO]
Tech/Engineering - IT (Information Technology)
English term or phrase: volumes
Context (taken from https://groups.google.com/forum/#!topic/comp.os.vms/Cu8qX-Sm...

I am wondering if it is now ok to covert ODS-2 volumes to ODS-5
There seems to be more and more HP based software like java, python and
others that require ODS-5 as their volumes. Is it now safe to run ODS-5
volumes for production systems.
Nam Vo
Vietnam
Local time: 17:34
Selected answer:volumes
Explanation:
You're right, "volume" refers to the top-level structure of a storage medium (hard disk, pendrive, etc.) which serves to identify the place of storage, rather than holding any actual data. Most commonly: "drive" or "partition".

The term was adopted in IT by analogy with "volumes" in the book world (think of "volumes" of an encyclopedia).
Selected response from:

Jennifer Levey
Chile
Local time: 07:34
Grading comment
Thank you :)
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
4volumes
Jennifer Levey
4 -1logical unit/container for storing data
Daryo


Discussion entries: 4





  

Answers


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5
volumes


Explanation:
You're right, "volume" refers to the top-level structure of a storage medium (hard disk, pendrive, etc.) which serves to identify the place of storage, rather than holding any actual data. Most commonly: "drive" or "partition".

The term was adopted in IT by analogy with "volumes" in the book world (think of "volumes" of an encyclopedia).

Jennifer Levey
Chile
Local time: 07:34
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 8
Grading comment
Thank you :)
Notes to answerer
Asker: Thank you very much, Robin :)


Peer comments on this answer (and responses from the answerer)
agree  John Druce
48 mins

disagree  Daryo: wrong explanation, I'm afraid. // a point of method: defining "volumes" as "volumes" is not exactly a definition.
30 days
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30 days   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): -1
volume (used for data storage)
logical unit/container for storing data


Explanation:
A "volume" is collection of data accessible trough the same "name" of the storage container holding a collection of data. The most well known example is the "drive C:" in Windows, but it's far from being the only type of "volume".

If a "volume" is the "top" of any hierarchical structure, it's the "top" of its own the directory tree - if data inside the volume is organised that way.

the hard disk is the physical support - it can be divided / partitioned in up to 4 "volumes" (in most systems), but the opposite is also possible - you can have a "volume" that spans several hard disks but as far as the operating system is concerned is just "one big collection of data" to which you get by first accessing/pointing to the "volume" first and then exploring the content of the volume, WHEREVER it's physically stored - all on the same hard disk or spread over several disks.

"volume" has to do with storing/accessing data - partitions and hard disks are just the physical support.

To make an analogy:

you can have a bunch of bundled paper (= the hard disk) containing 4 separate novels printed one after the other (= 4 "volumes" on the same hard disk)

inversely

you could have a very large printed text - say an Encyclopedia (= 1 "volume" in IT speak) printed not in one "bunch of bundled paper" but in several linked "books" (= a "volume" spanning several hard disks).

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Note added at 30 days (2018-08-21 12:35:20 GMT)
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ODS-2 and ODS-5 are types of filesystems used by the OpenVMS operating system

https://en.wikipedia.org/wiki/OpenVMS

Enterprise-class environments typically select and use OpenVMS for various purposes including mail servers, network services, manufacturing or transportation control and monitoring, critical applications and databases, and particularly environments where system uptime and data access is critical.

not exactly the stuff for home users ...

Daryo
United Kingdom
Local time: 10:34
Native speaker of: Native in SerbianSerbian, Native in FrenchFrench
PRO pts in category: 6

Peer comments on this answer (and responses from the answerer)
disagree  GILOU: volume, ce n'est pas une unuté logique (logical unit). Vous confondez un peu tout....
2 days 16 hrs
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