[CentOS] Re: Backups on external USB HDD
ugob at lubik.ca
Thu Nov 22 00:42:09 UTC 2007
Ugo Bellavance wrote:
> 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
>> 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
> a cronjob.
> Does this make sense?
> Is there a way to test it w/o being on site (one HDD is already connected).
The mount didn't work finally. I didn't have much time to test and I'm
not on-site, so I decided so simply do a 'mount /dev/sda1
/mnt/usbbackup;service smb start' at 18:00 and the opposite at 3AM.
I start my backup job at 20:00 so I should be fine.
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