Notes and Constraints

Access method

Can only be accessed over the intranet.

Supported protocols

Only NFSv3 is supported (NFSv4 is not supported).

Max. number of clients that a file system allows

10,000

File system encryption

Not supported

Number of files or subdirectories in a file system

Unlimited

Max. number of files or subdirectories in a single directory

1 billion

File system name

Must be globally unique. It cannot be the same as the name of any existing general-purpose file system, including one created by the current user or any other user. And it cannot be changed after the file system is created.

File system deletion

If a general-purpose file system is deleted, you can create a new file system with the same name after at least 12 hours.

Client OS

• Cannot be mounted to 32-bit Linux servers.
• Cannot be mounted to Windows servers.

Changing root directory permissions

Not supported

Constraints in the CCE and CCI scenarios

• When general-purpose file systems are used as the storage backend of CCE or CCI, you need to empty the in-use file systems before you can delete any PVCs or PVs. If you directly delete the PVCs or PVs, the file systems may fail to be deleted. Check whether the file systems are deleted on the general-purpose file system console.
• Deleting PVCs or PVs takes some time. The billing ends until the corresponding general-purpose file systems are deleted.

File locking with Flock

Not supported

Tag

• You can add a maximum of 20 tags to a file system.
• Tag keys of a file system must be unique.