[CentOS] Help setting up external drive via Firewire
rainer at ultra-secure.de
Sun Aug 17 16:18:27 UTC 2008
Am 17.08.2008 um 17:42 schrieb Noob Centos Admin:
> On Fri, Aug 15, 2008 at 8:56 AM, Filipe Brandenburger <filbranden at gmail.com
> > wrote:
> On Wed, Aug 13, 2008 at 18:43, Bill Campbell <centos at celestial.com>
> > My experience with Firewire has not been all that good. I figured
> > since Apple had been using it for years, and it is an IEEE
> standard, that
> > Firewire would be more reliable than USB. I was also a bit wary
> as the USB
> > disk drivers on SuSE gave warning messages saying they might not
> be very
> > reliable.
> Same here. I just migrated our backups from Firewire 800 to USB2,
> because the Firewire was causing us a kernel crash per week and we
> were having to reboot our server because of the backup drives. This on
> three different machines, one running SuSE 10 and two others with
> CentOS 5 with the centosplus kernel.
> I haven't had any problem with the machine since the FW drive was
> plugged in and left plugged in since I have not been physically back
> on location. What causes this crash and how would I know it is
> related to FW or not, in the event but hopefully never, the system
> does crash?
Some drivers don't seem to cope very well with the spurious bus-resets
and disconnects that seem to plague most firewire drives.
I once had to move 750 GB to two FW drives because I had to rebuild a
SATA2-RAID on a different controller.
At that time, my FreeBSD6.2 notebook (with Firewire on board) even
seemed a bit faster (with USB2) than the SLES9 server (Dual Precott
Xeons) with Firewire 800.
But FreeBSD also crashed from time to time, though it seemed to handle
bus-resets and link-losses a bit better.
Getting a card that was supported on SLES was funny anyway - SuSE
would not recommend a card to buy, because nobody knows which cards
contain which chips.
If it doesn't work, buy another one.
Repeat until it works....
More recently, a 1 TB WD "MyBook" (USB) just died in the process of
moving 700 GB of files on it.
Moral of the story:
- Firewire is cool (I _love_ the target-mode in my Macs), but the
implementation sucks most of the the time.
- USB2.0 doesn't suck much less. It's just used more widely and
obvious bugs show up often enough so that they might get fixed (in a
revision of the hardware you don't own...)
- in my book, USB means "Useless Serial Bus" - because it's obviously
not suited for much more than keyboards, mice and the occasional camera)
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the CentOS