How is the atime expiry time calculated

Dear Geek,

Each file has atime (In this feature, the file read or execution time is regarded as the expiration time of the file. Once the file enters the protected state, atime does not change with file access or execution and becomes the expiration time of the file), ctime (Time when the status of a file is last changed. The status of a file changes with the file's content, permission, owner, owning group, and link count.) and mtime (time when a file's content is last changed). The system determines the time when files are last modified based on mtime and records the time when WORM files expire in atime. atime can be calculated as follows:

• Automatic submitting for protection

1. If no atime is set: atime = mtime+automatic lockout duration + default protection period

2. If atime is set and mtime + automatic lockout period + minimum protection period < atime < mtime + automatic lockout period + maximum protection period: actual atime = automatic lockout period + set atime

3. If atime is set but atime < mtime + automatic lockout period + minimum protection period: actual atime = mtime + automatic lockout period + minimum protection period

4. If atime is set but atime > mtime + automatic lockout period + maximum protection period: actual atime = mtime + automatic lockout period + maximum protection period

• Manual submitting for protection

1. If no atime is set: atime = current WORM clock time + default protection period

2. If atime is set and current WORM clock time + minimum protection period < atime < current WORM clock time + maximum protection period: actual atime = set atime

3. If atime is set but atime < current WORM clock time + minimum protection period: actual atime = current WORM clock time + minimum protection period

4. If atime is set but atime > current WORM clock time + maximum protection period: actual atime = current WORM clock time + maximum protection period

Hope this can help you!