[X4U] New Mac Pro's and FW400

Zane H. Healy healyzh at aracnet.com
Wed Jul 28 08:07:37 PDT 2010

At 10:23 PM -0700 7/27/10, Randy B. Singer wrote:
>On Jul 27, 2010, at 9:45 PM, Zane H. Healy wrote:
>>Does it mean I can only run FW400 on that port?  Realistically at 
>>this point it isn't much of a concern, right now I only have 3 
>>drive enclosures plugged in.  Basically I'm thinking of SCSI where 
>>if you have different speed devices, the chain will sync down to 
>>the slowest device.

Thanks Roger, that is an interesting read.  The hubs are too 
expensive for my tastes, and from experience with other types of 
hubs, prone to failure.  As a result a PCI Express FW400 card might 
be in my future.  While it won't be an immediate purchase, it might 
be something to get as soon as practical after I get the new system.

As I was typing this, I happened to realize that I do have one very 
important FW400 device, the Epson scanner that I use for scanning 
film.  The combination of that and the Drobo might increase the 
importance of a FW400 card.

All in all a lot of "mights" in this. The key thing I took away from 
the article is I might or might not experience slowdowns depending on 
how I use my devices.  Honestly I'm not to happy about all the FW 
ports being on the same bus.

This also tells be that between now and when I get the new system I 
should probably test a couple things with my scanner to see if the 
way I'm using the Drobo is slowing it down.


| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh at aracnet.com              | OpenVMS Enthusiast         |
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