[CentOS] Re: Backups on external USB HDD
ugob at lubik.ca
Tue Nov 20 18:18:01 UTC 2007
David Ferreira wrote:
> If Device 009 is your USB HD, then, your /etc/hotplug/usb/usbhd.usermap
> sould look like that:
> #usb module match_flags idVendor idProduct bcdDevice_lo bcdDevice_hi
> bDeviceClass bDeviceSubClass bDeviceProtocol bInterfaceClass
> bInterfaceSubClass bInterfaceProtocol driver_info
> usbbackup 0x0003 0x04fc 0x0c25 0x0000 0x0000 0x00
> 0x00 0x00 0x00 0x00 0x00 0x00000000
> Well, now the script. only one question, Do you use backup exec to write
> on linuxbox fs and then, rsync to the usb hd?, or do you want to backup
> exec directly backup to the usb hd? If you do a rsync from local linux
> fs to the USB disk, you can umount the fs in the script when it's
> finish. If you choose the second option (Backup diretly to the usb hd)
> you sould find other way to umount the usb drive once you have finished
> backup (I think the easiest way is a cron job). I think first option is
> beter, so you can use this pseudo-script in /etc/hotplug/usb/usbhd:
> mount -t auto /dev/sd0 /mnt/backup
> rsync -Pavz --delete /tmp/backup /mnt/backup
> umount /mnt/backup
> If you prefere second option, you must made accesible /mnt/backup as you
> prefer to your windows box, quit rsync and umount from script, and
> create a cron job to umount the usb drive.
> I think now is enough clear what do you have to do.
Yes, I'd rather use the 2nd option, as the USB HDDs' size is 250 GB,
while I only have about 100 GB locally.
Therefore, I only need the first line, so that it is automatically
mounted? In fact, what I want is to always have /dev/sda1 mounted as
/mnt/usbbackup (example) as soon as it is connected.
My backup usually takes about 5 hours, so if I start it at 19.00, it
will be safe to umount the volume anytime after 4AM, for example, using
Does this make sense?
Is there a way to test it w/o being on site (one HDD is already connected).
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