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From Daniel Noll <dan...@nuix.com>
Subject Re: Client/server plus network storage of database files
Date Tue, 23 Sep 2008 02:04:49 GMT
Stanley Bradbury wrote:
> The problem is that I/O across a network cannot to be guaranteed.  You 
> are actually losing data buffered along the network when the network 
> fails.  Derby detects this when is boots the next time and finds the 
> checksums and timestamps on the files int the database are out of sync.
> Derby database files must reside local to the machine hosting the Derby 
> DBMS engine.

So what does Derby define as "across a network"?  FireWire is 
technically a network protocol after all.

Does this just mean I/O across TCP/IP?  Or just I/O across SMB?  Or 
across NFS and SMB?  Or generally any network protocol which happens to 
buffer?  But directly connected disks also buffer, so presumably it 
isn't that last option.


Daniel Noll                            Forensic and eDiscovery Software
Senior Developer                              The world's most advanced
Nuix                                                email data analysis
http://nuix.com/                                and eDiscovery software

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