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Duo v2 + WD USB backup read only permission problem
I am having a problem with file permissions on my USB backup. The specific problem: I can and do run backup jobs through the ReadyNAS tool from the NAS shares to the USB shares fine. However, if I disconnect the USB drive from the NAS and try to connect it directly to my pc (Mac OS Mavericks), the folders/files are all read only. I cannot add files to folders or delete files from folders. Nor can I drag a file onto the USB drive using Finder in MacOS. I can read/play any files on the USB drive just fine from my Mac (clicking on files through Finder), both when it's connected to the ReadyNAS and when I've attached it via USB directly to my Mac. Basically, the USB drive is read only from my Mac whether I access it through the NAS or connect the USB drive directly to my Mac.
How can I make sure that I can have write access (full access) to the back up files on the WD when I attach the drive directly to my pc or another NAS, etc.? What settings should I change on the ReadyNAS either in the backup jobs or the share settings for the USB to make sure the files on the USB drive are fully accessible?
My setup:
Duo v2 running RAIDiator 5.3.10
I have a 3TB WD drive attached to the front USB port.
I have several backup jobs configured on the Duo to copy shares or folders of shares from the Duo v2 to the WD on USB. For those backup jobs, I have left the box UNCHECKED for the option: "After backup is complete, change ownership of files in the backup destination to the share owner if the destination is a ReadyNAS share. Warning: Do not use this option if any files or directories should retain their current ownership." [<- I wasn't sure what that would really do, so maybe this is my problem?]
The USB share itself has the following settings:
Share Access settings:
Everyone Read/Write checked
all others blank (that is, none are read only)
Protocol-specific settings:
Folder Creation Group Rights: Read/Write
Folder Creation EveryOne Rights: Read/Write
File Creation Group Rights: Read/Write
File Creation Everyone Rights: Read/Write
Files and folders settings:
Folder owner: root
Folder group: root
Folder owner rights: read/write
Folder group rights: read/write
Folder everyone rights: read/write
Thanks for any suggestions! :D
How can I make sure that I can have write access (full access) to the back up files on the WD when I attach the drive directly to my pc or another NAS, etc.? What settings should I change on the ReadyNAS either in the backup jobs or the share settings for the USB to make sure the files on the USB drive are fully accessible?
My setup:
Duo v2 running RAIDiator 5.3.10
I have a 3TB WD drive attached to the front USB port.
I have several backup jobs configured on the Duo to copy shares or folders of shares from the Duo v2 to the WD on USB. For those backup jobs, I have left the box UNCHECKED for the option: "After backup is complete, change ownership of files in the backup destination to the share owner if the destination is a ReadyNAS share. Warning: Do not use this option if any files or directories should retain their current ownership." [<- I wasn't sure what that would really do, so maybe this is my problem?]
The USB share itself has the following settings:
Share Access settings:
Everyone Read/Write checked
all others blank (that is, none are read only)
Protocol-specific settings:
Folder Creation Group Rights: Read/Write
Folder Creation EveryOne Rights: Read/Write
File Creation Group Rights: Read/Write
File Creation Everyone Rights: Read/Write
Files and folders settings:
Folder owner: root
Folder group: root
Folder owner rights: read/write
Folder group rights: read/write
Folder everyone rights: read/write
Thanks for any suggestions! :D
3 Replies
Replies have been turned off for this discussion
- Hello,
Were you ever able to write to the drive before?
Which file system was used when formatting the USB drive? I read somewhere Macs recognize NTFS only as read-only for example.
Bye,
Eskender - Good questions.
I connected the WD drive to the NAS. I was able to create a new folder and move files into it using Finder on my Mac. I appear to have full access to new folders/files created. But still only read only access to files created by the backup jobs.
Then, I ejected it from the NAS and connected directly via USB to my Mac. I can read those files in Finder (and the ones in other folders created by the backup jobs). But, I cannot add new folders/files or delete files, not even in the new folder that I created via Finder a few minutes ago when the drive was connected to the NAS.
That is.... when it's on the NAS, I have full read/write access from the Mac using finder to create/delete folders/files on the USB drive as long as they are not part of my backup job folders. I can read only files put there by the NAS using the backup jobs.
When it's on USB to my MBP, I have read only access to anything on the drive, regardless of how it got there. That is whether it's part of the backup jobs or the new folder that I created using finder when the drive was attached via USB. When I look at the "Get info" option for the whole drive in Finder, it says, "you can only read". Hrm.
#2: It is NTFS formatted according to Disk Utility on my Mac. - Hello,
I think two different issues are actually happening here.
When the USB drive is connected directly to the Mac:
This seems to be the mentioned problem of Mac OS X not being able to write to NTFS formatted volumes. To solve this issue you will need to reformat the drive using a different file system, erasing all data.
When the USB drive is connected to the ReadyNAS:
Now it does not matter anymore what file systems the Mac OS can write to because this is now handled by the ReadyNAS. The fact that write access is still denied to the backup shares seems to be a permissions problem now.
So another question. Who had originally write access to the data that was being backed up to the USB drive? Was this restricted to some users? If so, please try connecting to the ReadyNAS using this user’s credentials.
Currently, I cannot test this on a 5.x OS ReadyNAS device, but ticking the option that you mentioned in your first post regarding ownership could also solve the problem. As I understand the manual, access rights would then be set to all files according to the access rights of the USB share. But please beware because this is irreversible. So all files in the backup share will have identical access rights afterwards.
At last, maybe it is not the worst thing that your backup share is write protected. As long as the backup jobs are still able to write to the USB drive. If you need the USB drive also for something else and have backed up to the top level until now maybe a sub folder as backup destination can also solve the problem.
Bye,
Eskender
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