CMS filesystem - Revision history

SJK at 12:47, 2 January 2021

2021-01-02T12:47:52Z

SJK at 12:21, 2 January 2021

2021-01-02T12:21:06Z

SJK at 12:05, 2 January 2021

2021-01-02T12:05:56Z

SJK at 12:03, 2 January 2021

2021-01-02T12:03:29Z

SJK: Created page with "{{FormatInfo |formattype=electronic |subcat=Filesystem }} The CMS minidisk filesystem is the original filesystem of the IBM mainframe z/VM operating system (previously known a..."

2021-01-02T11:51:55Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Filesystem }} The CMS minidisk filesystem is the original filesystem of the IBM mainframe z/VM operating system (previously known a..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Filesystem
}}
The CMS minidisk filesystem is the original filesystem of the IBM mainframe z/VM operating system (previously known as VM/CMS).

== Links ==
* [[Wikipedia:CMS_file_system|Wikipedia article]]

[[Category:IBM]]

← Older revision		Revision as of 12:47, 2 January 2021
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	* [[Wikipedia:CMS_file_system\|Wikipedia article]]		* [[Wikipedia:CMS_file_system\|Wikipedia article]]

−	[[Category:IBM]]	+	[[Category:IBM mainframe]]

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 |formattype=electronic
 |subcat=Filesystem
 }}
 The CMS minidisk filesystem is the original filesystem of the IBM mainframe z/VM operating system (previously known as VM/CMS).
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 It has no concept of subdirectories, all files being stored in the root directory. However, it was normal to give each user their own virtual disk, to keep each user’s files separate. Users could share disks with each other. Each disk was mounted using a drive letter A-Z, with drive A normally being each user’s own primary disk. Hexadecimal IO addresses were used to identify disks in a user-independent manner.
-Files were given maximum 8 character names with a maximum 8 character extension (called a "filetype"). A space rather than a dot was used to separate the name and extension.
+Files were given maximum 8 character names with a maximum 8 character extension (called a "filetype"). A space rather than a dot was used to separate the name and extension. An example of a file path is `NOTES TEXT A1` – that means the file is called `NOTES`, it is of type `TEXT`, and it is located on minidisk `A`. The `1` is file permissions.
 == Links ==

@@ Line 5: / Line 5: @@
 The CMS minidisk filesystem is the original filesystem of the IBM mainframe z/VM operating system (previously known as VM/CMS).
-It has no concept of subdirectories, all files being stored in the root directory. However, it was normal to give each user their own virtual disk, to keep each user’s files separate. Users could share disks with each other. Each disk was mounted using a drive letter A-Z, with drive A normally being each user’s own disk. Hexadecimal IO addresses were used to identify disks in a user-independent manner.
+It has no concept of subdirectories, all files being stored in the root directory. However, it was normal to give each user their own virtual disk, to keep each user’s files separate. Users could share disks with each other. Each disk was mounted using a drive letter A-Z, with drive A normally being each user’s own primary disk. Hexadecimal IO addresses were used to identify disks in a user-independent manner.
 == Links ==