TeraCLOUD implements a WebDAV engine (high-speed WebDAV) that has been improved specifically for TeraCLOUD, based on high-speed, highly versatile "Apache mod_dav".
*We do not accept inquiries about third-party WebDAV client software.
- Since the compatibility problem with the client software is very easy for the WebDAV protocol, depending on the software, it may not be able to connect, or the file may not be uploaded or downloaded.
- Depending on the WebDAV client software, meta information (information for WebDAV client software to judge the situation etc.) is saved in a specific folder etc., so handling of these may cause compatibility problems between client software.
- As file name handling may be different depending on OS and client software, garbling may occur in file name.
- In "What kind of storage does the data store?" Is also described, but even after using the WebDAV connection after understanding the characteristics of the storage, the file uploaded to TeraCLOUD must be different Please keep it in the place of.
About high-speed WebDAV
- Although there is no particular restriction on the upload / download size per file, we recommend that you make it less than 2 GB for safety.
- There may be restrictions depending on the client software.
- If your WebDAV client software is compatible with Partial Content upload (depending on software, Resume upload may contain meaning), it is recommended to keep it at about 16 MB, which does not cause a heavy load on handshake I will.
- High-speed WebDAV is not available on the ownCloud client.
About WebDAV clients that may not be recommended or may not be available
For WebDAV clients such as the following, it may not be possible to use normally.
Mounting as a file system
- Windows Explorer (OS standard WebDAV connection · Network drive function etc.)
- Mac OS X webdav (OS standard WebDAV connection · "Connect to server" function in Finder or mount with "mount_webdav" command at terminal)
- Linux davfs / davfs 2
In general, volumes mounted as a file system are devices with fast reaction speeds, so applications that access that volume are built on the assumption that reaction speed is fast.
For example, Windows explorer, Mac OS X Finder, Nautilus on Linux gnome, etc. can see file information, check directory information before opening the file, and before the user's file access I access things and create thumbnails and do various processing.
Unfortunately, the response speed of TeraCLOUD's WebDAV service exists on the Internet and shared by a large number of people because it is shared, so the response speed is unfortunately considerably slow compared to these local devices, and its speed may exceed 1000 times. As a result, applications that frequently access detailed data often acquire data frequently, which can be extremely prolific and may not be in time for the timeout time of file browsers (Explorer, Finder, Nautilus, etc.) Yes.
In addition, these clients do not resume, so even if there is a disruption due to the influence of the network or server, we will not perform a retry with a resume.Although TeraCLOUD will continue to improve speed in the future, considering the delay of the Internet, unfortunately it will become unbearable and it will be impossible to successfully complete file uploading and downloading It is possible.
Therefore, we recommend using WebDAV client software on Windows / Mac OS X / Linux.
Other compatibility issues
- Different handling of file names
- Subtle differences in file transfer method
We will describe them later.
Updated on Nov. 30, 2018