Big Data migrations

Due to server tuning, you need to migrate the database tablespace file about 2T above server A to another server B on the same network segment.

Specifically, n 32G tablespace file (note that it is a single file 32G)

The local area network transmits the file the tool many, but did not think is, once processing such a large document, the basic whole rest vegetable.

First try the FEIQ, the transmission speed is very fast, 1000M network card speed can reach 90m/s, but, file transfer to 5280M time on the wrong, tried n times also not.

Then on the server B shelves on the FTP service, on a above with the FTP software to upload, but the FTP software to see such a large single file also take a break, even the file size is displayed as negative ...

Finally can think of a trick, fastcopy.

That is, share the target folder on Server B and then map it to a network drive in Server A, and then copy it using FastCopy.

Finally, the test succeeded in this way, and the 2T data took nearly a day to finish the copy.

It seems that the fastcopy is still reliable.

Moreover, according to the previous experience, the copy of a single more than 10G of files, the system will be in the process of error, the specific performance is a copy after a period of reported memory shortage and so on.

This is the only use of fastcopy. Of course, similar software is more than this one, but according to authoritative assessment, fastcopy performance is the best, and it is FREE!!!

Highly Recommended ~ ~ ~

Big Data migrations