[rescue] None

[Arthur Wouk]

:Subject: Re: [rescue] anyone with a 4mm dat of reasonable capacity to sell
Content-Length: 2151


but which on ebay will fit in a 411 box? and will accept solaris
drivers. when i checked ebay i found that those i checked were set up
for windows.

:From: Jeffrey Nonken <jeff_work at nonken.net>
:
:On Thu, 6 Feb 2003 12:23:13 -0700 (MST), Arthur Wouk <awouk at ra.nilenet.com>
:wrote:
:
:> my 4mm dat tape drive had a mechanical failure (won't take in new
:> tape, mangled the one it ejected - didn't release the tape). so i am
:> looking for a replacement. the old one sits in a 411 box 50pin scsi.
:> it is a 2/4gig drive.
:>
:> anyone with an extra email me. if the email bounces, don't worry - my
:> procmail filters log all bounces, and when i fix a path through them,
:> i will let you know.
:
:A quick search for DDS-1 drives on eBay didn't show anything, but DDS-2 and
:DDS-3 are backwards-compatible.
:
:http://search.ebay.com/search/search.dll?MfcISAPICommand=GetResult&query=DDS-
:3
:
:http://search.ebay.com/search/search.dll?MfcISAPICommand=GetResult&query=DDS-
:2
:
:eBay is your friend. :)
:
:I believe that DDS-4 is only compatible as far back as DDS-2, so it won't let
:you re-use your old tapes. Just for the record, DDS-3 is a more reliable
:format than DDS-2, in addition to being a 6x increment in capacity. So I
:recommend you just go straight to DDS-3 if you can.
:
:If you aren't familiar with tape lengths, they are:
:60: DDS-1, capacity: 1.2g
:90: DDS-1, capacity: 2g
:120: DDS-2, capacity: 4g
:125: DDS-3, capacity: 12g
:I don't know what length DDS-4 is and I'm too lazy to look. :) Capacity is
:20g.
:
:Those are uncompressed capacities. Double those figures for compressed
:capacities, if it makes you feel good and you believe that you can actually
:achieve 2:1 compression on anything but highly-repetitive data. My experience
:(on complete drive backups) has been about 1.5:1, on a good day with a
:running
:start and a tail-wind.
:
:My own experience is that Sony drives are better than HP, but YMMV. I presume
:either will work on Sun, but I've never tried, so I can't answer to that. The
:DDS-3 Sony heads have a 20% duty cycle, the HP version only has a 12% duty
:cycle. I don't know anything about Seagate drives.
: