Disable read/write caching to disk?

[Scott Long]

Andre Guibert de Bruet wrote:

> 
> On Thu, 26 May 2005, Chad Leigh -- Shire.Net LLC wrote:
> 
>> Agreed, but as you say, FreeBSD is not there yet, and since the OP is 
>> on FreeBSD, and wants to have multiple computers attached, NFS would 
>> be one way of making that happen.  And if you leave the other 
>> computers attached by the FC but not mounted, if on goes down, you can 
>> replace it with another, and switch your nfs server over.  Not as 
>> ideal but doable on FreeBSD.
> 
> 
> This hack would not be suitable in an HA environment -- It requires 
> human intervention or some really fugly scripts not just for the NFS 
> server, but also for the clients. These scripts would have to figure out 
> how to recover NFS file locking state and consistency when the backup 
> machine fails over.
> 
> It seems as if NFS in this type of setup introduces more problems than 
> it solves.
> 
> Andy
> 

So what we need is some manpower.  I estimate that a proof-of-concept
port of GFS would take about 4-6 solid months.  There is also a volume
management aspect to GFS, but that is less important and the existing
GEOM classes can largely fill the role already.  Anyone interested in
taking a serious look at it?

Scott