Re: [Moosefs-users] parallel (ie: slow) writes acroos a WAN link?

[Michal B. <mic...@ge...>]

Hi!

 

Yes, if you save a large file in location A you'd have to wait till it's
written also in a remote location B. If you have a really quick WAN
connection there would be no problem (eg. 1 Gbit/s). If your WAN connection
is only 10-30Mbit/s the system would be very very slow and it won't be
convenient to use it at all. So it just depends on the speed of the
connection.

 

 

Kind regards

Michał Borychowski 

MooseFS Support Manager

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Gemius S.A.

ul. Wołoska 7, 02-672 Warszawa

Budynek MARS, klatka D

Tel.: +4822 874-41-00

Fax : +4822 874-41-01

 

From: Linux Expert [mailto:lin...@gm...] 
Sent: Tuesday, December 21, 2010 7:32 PM
To: moo...@li...
Subject: [Moosefs-users] parallel (ie: slow) writes acroos a WAN link?

 

I'm researching how to setup a 2-server filesystem with complete live
replication across a WAN link.  The total FS size is 1TB and each server
will hold a complete replica, with users on each end modifying files.  Users
run windows and will access the files via Samba. 

 

For various reasons, I think MooseFS is the best solution but I had a
question regarding writes. Moose will have a goal of 2 for the entire 1TB
directory.  If a user on Site A saves a large file, will they have to wait
until that file is saved to the remote node across the WAN link, or will
MooseFS save it to the local server the users is connected to, and replicate
it asynchronously in the background?