21 Jan
2010
21 Jan
'10
11:41 p.m.
On Thu, Jan 21, 2010 at 8:11 PM, Jochen Kunz <jkunz(a)unixag-kl.fh-kl.de> wrote:
On Thu, 21 Jan 2010 15:07:07 +0300
Sergey Lapin <slapinid(a)gmail.com> wrote:
Thanks a lot for all advices! Now I think I've got two problems now -
one is to implement backup
(which is unrelated here), and one, for fun, to make device working.
I've got drive and have just got
full vintage cabinet full of tapes to experiment on :) (since company
where I've got that box with a drive
decided to move all their old trash to local scrap and I talked them
into giving that tapes cabinet to me,
including contents. I just don't know what stuff is on these tapes,
but that in itself is intriguing :)
All the best,
S.
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Ah, that's so bad, so I will really need to
buy some vintage SCSI
tape drive to fullfill my backup needs.
If you really want tape backup: Get a DLT
drive. This is the most
reliable tape technology I came across. Next to it are the big QIC
drives that use DC6xxx or DC9xxx media. (Don't confuse this with the
MiniQIC stuff that was used for floppy streamers.) This would be a
proper backup for an old Unix box. (DC600 tapes where a common
distribution media for Unix software in the pre-CDROM era.)
Avoid helical scan like DAT or Exabyte 8 mm.
Hmmm. Well. 9-track tape is even more reliable then DLT. But how much
data do you get on a 2400' tape at 6250 bpi? (Answer left to the reader
as an exercise. ;-) )
Or, as Jason mentioned: Consider disk backup on at least two redundant
disks. (Does not need to be RAID. Just copy all data to two indepentent
disks.)
Store at least one backup off site...
Forget CD-R and DVD-R.