Newsgroup: it.comp.macintosh
Titolo: dubbi su OS X 10.3 e firewire

Salve a tutti,
da qualche tempo in qua (poco meno di un annetto) sarei intenzionato ad
acquistare un Mac in sostituzione del mio vecchio PC. Ho atteso tanto perché
mi interessava un sistema dotato anche di porte USB 2.0. Visto poi che era
annunciato anche il nuovissimo OS X 10.3, ho preferito aspettare anche l'
arrivo della pantera. Ora sarei pronto all'acquisto. Dopo mesi spesi a
configurare le mie preferenze su Apple Store ero giunto a questa
configurazione: iMac LCD 17", G4 a 1,25 Ghz, 1 Gb di RAM, Superdrive, HD 80
Gb. Approfittando poi dell'offerta ancora in corso volevo aggiungere Final
Cut Express scontato. Ed ancora un, irrinunciabile, HD esterno firewire da
affiancare al drive interno e da utilizzare costantemente per l'acquisizione
ed il montaggio di file video in formato DV.
Ed ecco il dubbio che mi assilla: leggo con (forse esagerata) preoccupazione
il bug che affligge la Pantera con i dispositivi esterni firewire. Su
www.macfixit.com
 alcuni allarmanti report riguardano non solo i dischi ma
(se non ho capito male dato il mio scarso inglese) anche le videocamere
connesse via firewire (vedi sotto).
Dato che lo scopo del mio acquisto è fondamentalmente avere uno stabile (per
quanto possibile) sistema per l'editing video, questa situazione ha
bruscamente frenato la mia decisione di acquisto. Ora, secondo voi che siete
da tempo utenti Mac, sto esagerando in preoccupazione o conviene aspettare
una risoluzione definitiva del problema?
Scusate il post lungo ma la questione mi sembra piuttosto seria.
Grazie e ciao a tutti,
eugenio - che spera di essere presto utente Mac! - (per e_mail togli NSPM)
***da 
www.macfixit.com
 ***
Thursday, October 30 2003 @ 02:22 AM PST
Troubleshooting OS X 10.3 Panther (#5): FireWire drive issues.
FireWire drive issues We continue to receive reports of external FireWire
drives being unusable after restarting a Panther machine with the drive(s)
connected. Unfortunately, neither Apple nor anyone else has been able to
pinpoint the exact nature of the problem. An Apple Discussions thread that
focuses on this issue has well over 200 posts, many from users who have been
bitten by this bug. As we mentioned yesterday, the only common denominator
that has emerged thus far is that the drives functioned properly until the
Panther machine was restarted with the drive(s) attached.
Although we haven't confirmed this theory, one MacFixIt reader commented
that, at least on his drive, what appears to have happened is that during
the restart, the drive's partition type/format was changed from HFS Plus to
UFS; on the subsequent startup, fsck thought the drive was a UFS volume, and
tried to repair what it thought was a badly damaged directory (the original
HFS Plus directory). The end result was an HFS Plus volume with an
unreadable directory. This could be an isolated, unrelated incident, or it
could accurately describe what is happening in most of these case. At this
point, we don't know.
What we do know right now is that Apple and several third-party vendors are
currently working on isolating the problem. Apple has been emailing
participants in discussion threads about this issue, asking them for details
on their systems and incidents, and Apple engineers have been requesting
more data from particular individuals as they try to nail down exactly what
is causing the problem. A number of drives are also in the hands of drive
recovery and disk utility companies, who are trying to ascertain exactly
what has happened to the drives themselves.
As we mentioned yesterday, this issue is not affecting everyone. However,
until more information on is available, if you have Panther installed on
your internal drive, and have one or more external Firewire hard drives
connected to your Mac, we recommend unmounting and disconnecting the
FireWire drives before shutting down or restarting.
On what may or may not be an unrelated note, although FireWire is supposed
to fully support hot-plugging, and should have no problems with devices
being plugged in during restarts/startup/shutdowns, we've received reports
suggesting that it's not always foolproof. One Authorized Apple Dealer
submitted the following interesting story:
"I am an Authorized Apple Dealer and have a customer who frequently rents
very high end Firewire Cameras from somebody in town. They make every
customer sign a form promising they WILL NOT power on or reboot their Mac
with their equipment attached via firewire. Apparently during a power-up or
reboot there is a surge through the port that can damage equipment
(generally cameras...but I could see it extending to Drives). I can confirm
this as I had a school that kept blowing their cameras and firewire ports on
their AV machines....Apple paid for the camera repairs (!!) and then stated
Do not boot or reboot your machines with firewire devices attached!"

 una risoluzione definitiva del problema?
Proprio perche' la questione e' pressante per tutti mi aspetto una patch
a brevissimo tempo. 
-- 
l'indignazione e' come un orgasmo
dura poco e poi viene sonno

 una risoluzione definitiva del problema?
Non necessariamente. Il problema riguarda chi aveva dati sul fw e li ha
persi. Non mi risulta che se formatti direttamente da Panther tu incorra
in problemi dopo un ennesimo riavvio.
ciao
fede