[ILUG] backup options...

[Liam Bedford]

On Tue, 19 Mar 2002 22:05:30 +0000
kevin lyda <kevin at suberic.net> blurted in message 20020319220530.D32753 at suberic.net:

> ok, i see the following backup solutions:
> 
>     tape:
> 	there are various versions.  uncompressed the best i see is
> 	20megs uncompressed.
Well, 20 megs uncompressed maybe, if you're talking about 25 years ago.

AIT-II is 50G native, AIT-III is 100G native...

(interestingly, the compression ratio's they quote seem to be growing... they used to quote 2:1, now they're doing 2.6:1).

Though you are looking at a substantial investment for both of those tape drives, with a < 10% duty cycle IIRC. The tapes run between 40 and 100 EUR, depending on capacity.

DDS4 is 24G compressed isn't it? I know with my usage, that would cover the
important stuff in my home directory (but not my mp3's... they can die though, I have all the CD's).

>     disk:
> 	needs to be hotswap.  ide hot swap seems to have poor support,
> 	but scsi seems more possible?  sizes are larger here, but the
> 	media is more fragile.
try a RAID array of the IBM 60G laptop hard drives... they should be reasonably sturdy... or just do what I do currently, and rsync your important data to 4 different machines :)

>     disc:
> 	cdrom only holds 600 megs or so.  dvd is better?  media more
> 	fragile?
extremely light sensitive, maximal life of 20 years for the cheap stuff. very fragile IMO. DVD may be an option.. (macs can write 5G to a DVD, but you still have the fragile bit).

L.
-- 
 Liam Bedford | It's just the facts of life
--------------| There's no masterplan
 Belle &        Walk me home from school
 Sebastien      I'll let you hold my hand