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Full Discussion: Help finding a Unix friendly RAID 1 backup
Special Forums Hardware Filesystems, Disks and Memory Help finding a Unix friendly RAID 1 backup Post 302509654 by Corona688 on Thursday 31st of March 2011 11:28:01 AM
Old 03-31-2011
Quote:
Originally Posted by c.wakeman
I have a problem that may not be fixable this evening. I can't, not for lack of trying for hours, find a male to male USB cable in the office. Can the connection be made with an ethernet cable?
No. Sorry I didn't realize this. You seemed confident the disk had USB connectivity and I didn't question it too deeply.
Quote:
I have done some reading about USB and my Buffalo HD and it seems that a USB connection won't work for two reasons. The first, the Buffalo HD USB is designed only to accept additional peripheral storage devices, not to connect the HD as a peripheral to a computer. (That wasn't exactly made clear in the product description; they mentioned that was an option, not the only use...) Two, USB A to USB A wouldn't support data transfer anyway and might short both the peripheral and the computer. Is that correct? I may have been searching using the wrong terms but I was amazed how little information I could find regarding male to male USB cables.

So at this point I have two options from what I can tell:
1) Return the Buffalo HD and purchase another HD that has proper USB connectivity.
That's what I'd do.
Quote:
2) Connect the Buffalo HD to the linux server using the available Linux ports.
You'll never be able to do a bare-metal backup that way.
Quote:
I tentatively attempted this last evening, but the gentoo liveCD bootup could never recognize the Buffalo HD using the fdisk -l; so I aborted the backup attempt.
It'll never recognize a network-only disk. Things on a network don't just appear because you plug them in (except for DHCP servers). It has to be used in other ways, and likely can't be done from a gentoo livecd since it's probably CIFS. Won't be trivial to do so on a full linux system, either. It won't be able to use it as a disk anyway, just as NAS.

The NAS features of the disk probably aren't very useful at all if you want to do a bare-metal backup.
Last edited by Corona688; 03-31-2011 at 12:49 PM..
 

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LEARN ABOUT PHP

uftdi

UFTDI(4)						   BSD Kernel Interfaces Manual 						  UFTDI(4)

NAME

     uftdi -- USB support for serial adapters based on the FT8U100AX and FT8U232AM chips

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device uftdi
	   device ucom

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   uftdi_load="YES"

DESCRIPTION

     The uftdi driver provides support for various serial adapters based on the FTDI FT2232C, FT8U100AX and FT8U232AM chips.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

HARDWARE

     The uftdi driver supports the following adapters:

     o	 B&B Electronics USB->RS422/485 adapter
     o	 Elexol USB MOD1 and USB MOD3
     o	 HP USB-Serial adapter shipped with some HP laptops
     o	 Inland UAS111
     o	 QVS USC-1000
     o	 Buffalo PC-OP-RS / Kurouto-shikou KURO-RS universal remote
     o	 Prologix GPIB-USB Controller

SEE ALSO

     tty(4), ucom(4), usb(4)

HISTORY

     The uftdi driver appeared in FreeBSD 4.8 from NetBSD 1.5.

BSD
								 November 22, 2006							       BSD
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