On Tue, 18 Jan 2005, riccardo wrote:
On Tuesday 18 January 2005 07:21 pm, Jack Malone wrote:
on a hard drive in the system just for that purpose an its quick fast at about 2 hours to backup the 11 gigs an compare them. I need the tape backup for removing the night before's backup off site, aka taking it home with me. Then if the building burns down You have your data off away from the fire an in a safe place. I just copied the 11 gigs off to my test bench machine an fixing to see how long it takes to backup that 11 gigs of stuff with bru now.
some years ago i used Yusuf Nagree's handy 'Taper' program to back up to Iomega Tape Drive, & Mr Nagree, in australia, was most helpful. Now, during the day, i do cron-timed TAR.GZ backups of data files.
every second day, backup whole system to other drive/other partitions in rotation.
Weekly, do RSYNC backups of whole system to spare HDs, plugged in just for the backup, and then taken off-site.
it seems that it takes about 10 minutes to backup 6 gigs.
Could someone please be so kind and explain what are the enduring charms of Tape backups?
DLT tapes can last 25 years, and they don't break if you drop them? Oh,
and I can eject a tape and take it with me very easily? Hard drives are
delicate compared to DLT tapes?
I use disk to disk to tape backups. rsync from (N) hosts to a backup
host and then back /that/ up with tape. rsyncs are daily, disk to tape
is "when I feel like it" because so little changes day to day.
Tape has it's place and it's "long term" storage. "long term" for me is
more than six months to tens of years. Tape, unlike CDs and DVDs,
lasts. At least good tape does. DLT, Super DLT, possibly VXA and
probably Mammoth and LTO. I wouldn't touch DDS (DAT).
I use rsync with --link-dest.
--
Carpe diem - Seize the day.
Carp in denim - There's a fish in my pants!
Jon Nelson