Re: Network Block Device w/ RAID for Content Replication (Was: Re: load balance web site)

[Joseph Mack <mack@xxxxxxxxxxx>]

On Sat, 3 Jun 2000, Atif Ghaffar wrote:

> I am not using this device to writes at all.
> 
> Infact the applications know that there is a
> ro and rw mail, ldap and mysql server.
> 
> ro is localhost 
> and rw is the ip of the back end server.

I don't understand yet how your mail works. Can you please explain it some
more?

If two messages are coming in via different frontend servers and they both
want to write to /var/spool/mail/username, how is the locking handled?

If the user is reading his ~username/mail/INBOX in 2 windows logged on to
2 different frontend machines, how is the file locked for deletes?

Joe

--
Joseph Mack mack@xxxxxxxxxxx