[Moosefs-users] MFS Security & Performance

[Howie C. <ho...@vp...>]

Hi, there,

I saw many ppl have already implemented MooseFS as the backend storage for Xen. How do you mount MFS for it? Just create a flat file and create FS and LVM on it?  Also I am concern about the security since every client connected to the central storage, what if one client got compromised, does it mean it can be easily to lose all data? How about the storage for OpenVZ? OpenVZ container stores files within one folder on the server, it's so easy to hit 25 million files I believe. To solve this issue, according to some cases, is to add more memory to the master. Does it mean this is a soft limitation of MFS since not everybody can afford a server with 192GB memory?

How's your read and write speed on the client? Mine can only reach around 40MB/s for writing, 68MB/s for reading. 2 chunks, 2 goals, 4 harddrives each server,  2 gigabit Nics bonded on a gigabit switch. Is it a normal rate? Last time I saw my friend perform dd command on one of his Exs VM, and he got 1GB/s read and write speed. His settings is pretty much the same to mine except he got 3 chunks and 6 harddrives for each server.

I would appreciate any response.

Thank you!