A-Class Access Control Settings Expected Behavior

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Last Post 05 March 2014

Ken Chou posted this 05 March 2014

Windows	Default UID and GID of the user			UID and GID used by VTrak File System based on options set in the export entry of the file system (squashroot is the default)
	Example User			FCS Firmware v1.01.0000.00						PR1 Firmware v1.05.0000.00						SR1 Firmware v1.08.0000.00
	Name	UID	GID	squashroot		squashall		squashnoroot		squashroot		squashall		squashnoroot		squashroot		squashall		squashnoroot
	Name	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID
Rules for the default exports created after formatting the filesystem	Windows Administrator	1000	1000	1000	1000	N/A	N/A	N/A	N/A	1000	1000	N/A	N/A	N/A	N/A	1000	1000	N/A	N/A	N/A	N/A
	Windows Limited	1000	1000	1000	1000	N/A	N/A	N/A	N/A	1000	1000	N/A	N/A	N/A	N/A	1000	1000	N/A	N/A	N/A	N/A

Rules for the default exports that were modified or new export created	Windows Administrator	1000	1000	1000	1000	0	0	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
	Windows Limited	1000	1000	1000	1000	0	0	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000

Note: To make a Windows client have root privilege, please perform the following steps:

Pre-condition: squash = noroot in export setting.
Enable LDAP from A-Class GUI, and then setup according to Windows AD server.
Create a Windows AD user and assign uid/gid as 0.
Login Windows client using the Windows AD user with uid/gid 0.
Input username/password of the Windows AD user with uid/gid 0.
Mount the A-Class volume.

After the steps above, the Windows client can get root privilege.

Mac OS Default UID and GID of the user UID and GID used by VTrak File System based on options set in the export entry of the file system (squashroot is the default)
Example User FCS Firmware v1.01.0000.00 PR1 Firmware v1.05.0000.00 SR1 Firmware v1.08.0000.00
Name UID GID squashroot squashall squashnoroot squashroot squashall squashnoroot squashroot squashall squashnoroot
UID GID UID GID UID GID UID GID UID GID UID GID UID GID UID GID UID GID
Rules for the default exports created after formatting the filesystem root 0 0 0 0 N/A N/A N/A N/A 0 0 N/A N/A N/A N/A 1000 1000 N/A N/A N/A N/A
Admin (of Mac OSX) 501 20 501 20 N/A N/A N/A N/A 501 20 N/A N/A N/A N/A 501 20 N/A N/A N/A N/A
JohnDoe 38 38 38 38 N/A N/A N/A N/A 38 38 N/A N/A N/A N/A 38 38 N/A N/A N/A N/A
Rules for the default exports that were modified or new export created root 0 0 0 0 0 0 0 0 1000 1000 1000 1000 0 0 1000 1000 1000 1000 0 0
Admin (of Mac OSX) 501 20 501 20 0 0 501 20 501 20 1000 1000 501 20 501 20 1000 1000 501 20
JohnDoe 38 38 38 38 0 0 38 38 38 38 1000 1000 38 38 38 38 1000 1000 38 38

Note:

N/A (not applicable) because when default of squashroot is modified, then it follows the rules of the second row
The values shown in red are wrong and have been fixed in SR1

As you can see from the above chart, access setting implementation is not the same across the first two releases.

Please reference the following KB for detailed access control definitions:

http://kb.promise.com/thread/what-do-each-of-the-vtrak-a-class-access-control-list-acl-squash-settings-actually-do

Depending on the code are running or may have previously been running, you mayneed to make some access setting modifications via the A-Class GUI.

If you are having access control problems with files or folders please leave the settings intact and contact Promise technical support.

After proper access control setting configuration has been conducted on A-Class, the existing file or folder permissions may need to be modified manually using chmod, chown and chgrp.

See the following:

http://en.wikipedia.org/wiki/Chmod
http://en.wikipedia.org/wiki/Chown
http://en.wikipedia.org/wiki/Chgrp

A-Class Access Control Settings Expected Behavior

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Mac OS	Default UID and GID of the user			UID and GID used by VTrak File System based on options set in the export entry of the file system (squashroot is the default)
	Example User			FCS Firmware v1.01.0000.00						PR1 Firmware v1.05.0000.00						SR1 Firmware v1.08.0000.00
	Name	UID	GID	squashroot		squashall		squashnoroot		squashroot		squashall		squashnoroot		squashroot		squashall		squashnoroot
	Name	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID	UID	GID
Rules for the default exports created after formatting the filesystem	root	0	0	0	0	N/A	N/A	N/A	N/A	0	0	N/A	N/A	N/A	N/A	1000	1000	N/A	N/A	N/A	N/A
	Admin (of Mac OSX)	501	20	501	20	N/A	N/A	N/A	N/A	501	20	N/A	N/A	N/A	N/A	501	20	N/A	N/A	N/A	N/A
	JohnDoe	38	38	38	38	N/A	N/A	N/A	N/A	38	38	N/A	N/A	N/A	N/A	38	38	N/A	N/A	N/A	N/A
Rules for the default exports that were modified or new export created	root	0	0	0	0	0	0	0	0	1000	1000	1000	1000	0	0	1000	1000	1000	1000	0	0
	Admin (of Mac OSX)	501	20	501	20	0	0	501	20	501	20	1000	1000	501	20	501	20	1000	1000	501	20
	JohnDoe	38	38	38	38	0	0	38	38	38	38	1000	1000	38	38	38	38	1000	1000	38	38