ReadyNAS OS 6.4 adds the option to set quota limits on shares.
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Here are some points to note about this new option:
- It can be set during new share creation, or in the Properties tab of an existing share's settings.
- A quota setting on a share counts both metadata and data, so if a share has a lot of metadata and a small quota, then the share may be able to store a lot less actual data than what the user would expect.
- Metadata is considered data about data. This includes all internal data structures of the file system, including directory structure, permissions, checksums, file names, and extent information.
- Extents are contiguous sequence of bytes on disk that holds file data
- Data used by snapshots in a share do not count towards quota usage. A possible problem may arise if trying to do a rollback to a snapshot which references a greater amount of data than the current quota settings on the share.
When a limit is reached
If the quota limit on a share is reached, Windows may report either of the errors shown below:
- "An unexpected error is keeping you from copying the file. If you continue to receive this error, you can use the error code to search for help with this problem. Error 0x8007003A: The specified server cannot perform the requested operation."
- "There is not enough space on share <PATH>. xMB/GB/TB is needed to copy this item. Delete or move files so you have enough space. There was not enough space for this item. Free up space from this disk and try again."
On Mac OS X, the following error may display when the quota limit is hit:
- "The operation can't be completed because the disk is full."
Last Updated:07/08/2025
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Article ID: 29891