View Full Version : Re: FW HD - dual mount?


Richard P. Grant
07-03-2003, 10:49 AM
In article <3F03E6CB.7030307[at]no.spam.today.thanks.invalid>,
David Kennedy <david.kennedy[at]no.spam.today.thanks.invalid> wrote:

> Richard P. Grant wrote:
> > In article <1fxiitx.1fks0wr1gxlznqN%{$usenet$}[at]apple-juice.co.uk>,
> > {$usenet$}[at]apple-juice.co.uk (D.M. Procida) wrote:
> >
> >>Richard P. Grant <rpg14[at]yahoo.co.uk.invalid> wrote:
> >>
> >>>Given an external FW HD, with two FW ports, is it possible/safe to mount
> >>>it on two Macs simultaneously? (OS Jag.6)
> >>
> >>Possible, yes. Safe, no.
> >>
> >>Too many cooks will quite possibly ruin this particular broth.
> >
> > In what way 'ruin'? I want to copy some big files over; I'm not
> > planning on doing simultaneous read/write.
> >
>
> If both machines tried to access at the same time....
> [not necessarily through a process you started]
>
> Much safer to copy from one onto the disk and then connect to the other
> and repeat.

OK. Thanks to you and Daniele both.

(So, there must be a way to do this, shirley? I mean, you can have the
same disk mounted multiply - or is that only via different protocols?
FTP frexample)

--
Richard P. Grant | It's called a bio-assay -
0x5F9559B1 | If enough of your customers die,
www.rg-d.co.uk/ucsm/ | you know there is something wrong.
www.rg-d.com/BioLOG/ | - Adrian Tuddenham on ucsm

Richard P. Grant
07-03-2003, 11:48 AM
In article <1fxiqsz.1rsce3zm3635lN%pd.news[at]dsl.pipex.invalid>,
pd.news[at]dsl.pipex.invalid (PeterD) wrote:

> Share it - that's what filesharing networks were invented for. Then only
> one computer is running the filesystem.
>

Sharing at home is currently a problem. S L O W if it works at all.

> Presumably you want to use FW rather than Ethernet for speed
> considerations? There's some tiny bell going off in my head about using
> FW as a networking protocol - if I find it I'll post.

hmmm . . .

--
Richard P. Grant | It's called a bio-assay -
0x5F9559B1 | If enough of your customers die,
www.rg-d.co.uk/ucsm/ | you know there is something wrong.
www.rg-d.com/BioLOG/ | - Adrian Tuddenham on ucsm

Christian Hewitt
07-03-2003, 01:09 PM
> (So, there must be a way to do this, shirley? I mean, you can have the
> same disk mounted multiply - or is that only via different protocols?
> FTP frexample)

How about plugging the FW drive into Mac#1 then publish this volume as an
NFS share point. Now go to Mac#2 and NFS mount this share point to some
suitable place in Mac#2's filesystem. The result should be that only one Mac
(#1) is 'physically' controlling the disk but both can share and work from
the same disk space. Disk access speed obviously depends on the connectivity
between the two boxes - but if both are fairly recent machines there's a
good chance you can use a back-to-back Ethernet cable to link at GigaBit
Ethernet rates.

There's probably a few missed bits in there and the description of NFS
things is probably a little wrong in the terminology stakes but I think the
principle is sound?

CH