I want to create easily updatable backup of my document files. Currently, it’s of 1 GB size. I tried pushing commit with this, but always ended up:

error: RPC failed; HTTP 504 curl 22 The requested URL returned error: 504
send-pack: unexpected disconnect while reading sideband packet
fatal: the remote end hung up unexpectedly

I think this isn’t possible with git. If this is true, could you tell me what technology I should use?