SMB server with failover node
miguelg at fe.up.pt
Mon Apr 21 03:30:12 PDT 2003
I am going to install a FreeBSD 4.8 SMB server (using Samba)
in a corporate environment. Due to the small number of
clients on the network I will alocate 6 GB on the main server
hard drive for those users. In this main server I have 2
hard drives configured as a RAID-1 Vinum device.
What kind of graceful failures have users of Vinum noticed,
i.e., can the server enter degraded mode using only one drive
without much user intervention? Money is a concern but should
I move to hardware RAID (with hot swap option) to prevent user
intervention? I can only get near the machine at best in 3 or
4 hours (and the local users don't understand FreeBSD) but I
will monitor the machine daily remotely.
To better cope with failure of this server I am also installing
a second FreeBSD box that has much more hard disk space and
will sync those 6 GB of data every 15/30 minutes. What is the
best way to mirror the data: rsync or dump? What if there are
open files? Will rsync work?
If the main server fails I can instruct the local staff to
disconnect it from the network and execute a command at the
backup server's console. This command would change the server's
IP address and would start the Samba daemon.
Any ideas for a better setup?
Thanks for your time,
PS: Please CC me also.
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