[FX.php List] Folder path?

[Edward L. Ford]

I don't have direct access to a FM Server or a reason to investigate  
this for my own needs, but I'd thought I'd provide some of the  
thoughts I had about this subject:

While not being able to specify where FMSA stores its db files seems  
odd, maybe it is FMIs choice to limit where the files are stored for  
database integrity reasons, as someone else already stated.  FMI  
states very clearly in one of the manuals the problems with opening  
files from a file server (i.e. a non-FMSA database), and all of those  
issues ultimately stem from reliability problems with a network  
connection.  I know about these problems that can occur through this  
far too well, as I spent three weeks over the summer recreating a  
database from scratch because the original database was opened from a  
Novell server for years before I came on staff -- the corruption in  
sections of the file was so bad that recreating it from scratch was  
the only solution I could justify.  (If anyone thinks they have  
FileMaker database corruption issues, or would like to prevent them  
from happening, I have two short PDFs on my website, linked in my  
signature, with some tips and helpful references.)

By the same logic, this may be disallowed because IO channels can get  
congested, especially with large files over USB (1.1 or 2.0).   
Further, hardware fails, so what sort of undefined behavior would  
occur if a database request comes into FMSA, and all of a sudden, the  
server can't access the other drive because it's become unplugged,  
crashed, or whatever else can befall a drive.  If the databases are  
stored on the same drive as the FMSA software and the OS, at least if  
there's a problem, FMSA and/or the OS probably wouldn't be able to  
start in the first place.

I did notice that everyone replying to this was using FMSA on OS X.   
Has anyone investigated this with a Windows machine?  Checking out  
that angle would verify if the problem was from OS X Tiger  
restrictions, or if it's deliberately prevented by FMI.

My two cents,
--Ed
-----------------------------------
http://www.edwardford.net	


On Apr 23, 2007, at 1:45 AM, Erik Andreas Cayré wrote:

>
> Den 23/04/2007 kl. 10.21 skrev Tom Sepper:
>
>> Sure, the seek time may be faster, but the data transfer speed  
>> surely wouldn't be. I really think you'd see a performance hit  
>> rather than an increase with an external HDD.
>
> I don't believe that to be true in a general sense. The performance  
> you get is a function of many things (as stated by FMI i their  
> manual for FMS).
> I just moved a very complex FM6 solution with 55 files. It is  
> hosted with FMS 5.5.v4 on a G4DP450. Orginally it ran on an  
> internal PATA HD, I installed an internal mirrored array of HP 15K  
> U320 SCSI harddisks.
>
> While I did see a performance increase, I was slightly disappointed  
> by the relatively modest change. I would have probably gotten a  
> greater gain using FMS8, but the solution isn't ready to to be  
> upgraded/rebuilt yet.
>
> Unfortunately I don't have the lúxury of time and money to do  
> thorough tests using all kinds of configurations, so it will have  
> to do. I primarily did it for safety (striped array) anyway...
>
> BTW. I chose to move Mac OS X to the array as well, not having time  
> to dig for a solution to the problem this thread is about.
> I'm confident the solution offered by ggt is both workable and  
> reliable anyhow.
>
>
> ---
> Erik Andreas Cayré
> Spangsbjerg Møllevej 169
> 6705 Esbjerg Ø
>
> Privat Tel: 75150512
> Mobil: 40161183
>
> ---
> »Kun p....sure mennesker kan ændre verden. Innovation skabes ikke  
> af 'markedsanalyse', men af folk, der er afsindigt irriterede over  
> tingenes tilstand «
> --Tom Peters
>
> »Hvis du ikke kan forklare det simpelt, forstår  du det ikke godt  
> nok.«
> -- Albert Einstein
>
> »Hvis du ikke har tid til at gøre det rigtigt, hvornår vil du så  
> have tid til at lave det om?«
> -- John Wooden, basketball coach
>
>
> _______________________________________________
> FX.php_List mailing list
> FX.php_List at mail.iviking.org
> http://www.iviking.org/mailman/listinfo/fx.php_list

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.iviking.org/pipermail/fx.php_list/attachments/20070423/7a48977c/attachment.html