code Description
400 Invalid parameter of file operation
401 Unknown error of file operation
402 System is too busy
403 Invalid user does this file operation
404 Invalid group does this file operation
405 Invalid user and group does this file operation
406 Can't get user/group information from the account server
407 Operation not permitted
408 No such file or directory
409 Non-supported file system
410 Failed to connect internet-based file system (e.g., CIFS)
411 Read-only file system
412 Filename too long in the non-encrypted file system
413 Filename too long in the encrypted file system
414 File already exists
415 Disk quota exceeded
416 No space left on device
417 Input/output error
418 Illegal name or path
419 Illegal file name
420 Illegal file name on FAT file system
421 Device or resource busy
599 No such task of the file operation
api document (file station) https://cndl.synology.cn/download/Document/Software/DeveloperGuide/Package/FileStation/All/enu/Synology_File_Station_API_Guide.pdf
page 10~11
error code in code
https://github.com/N4S4/synology-api/blob/26f2952ad706aa5686460ab364098141e246de83/synology_api/error_codes.py#L60-L69