LTO: Linear Tape Open It is a new standard promoted by HP, IBM and
Seagate to compete with DLT and its follow on sDLT. There are two types of
LTO drives and cartridges, the Ultrium and the Accelis. The Ultrium format
is used for high-speed, high capacity backups and the cartridge is very
similar to a DLT tape, with a single reel. The Accelis format I geared more
at high-speed and rapid access, with the cartridge looking more like a DDS
tape, with 2 reels.
I have no experience with the latter format, but on the Ultrium format, the
cartridge is currently up to 200GB of compressed data, with 100GB of native
data. The speeds are 15MB/second native and 30MB/second compressed. The
latter speed can be exceeded, I have seen up to 43MB/second in some of my
tests.
HP, IBM and Seagate all make Utrium drives.
The format was introduced about 18 months ago and the HP drives now seems to
work well.
Kind regards,
Denys. . .
Denys Beauchemin
HICOMP
(800) 323-8863 (281) 288-7438 Fax: (281) 288-7438
denys at hicomp.com www.hicomp.com
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On Behalf Of
Harrington, Don
Sent: Friday, June 07, 2002 2:12 PM
To: [log in to unmask]
Subject: Re: r2r Tape Carrying Cases
LTO?
Don Harrington
Sr. Systems Analyst
Facilities Applications Support
Shared Services Group
The Boeing Company
P.O. Box 3707 M/C 2R-32
Seattle, WA 98124-2207
(v) 206-544-5679 (f) 206-544-5788 (p) 206-797-6360
The opinions expressed in this e-mail reflect those of the sender. They do
not necessarily reflect the opinions of The Boeing Company unless
specifically stated otherwise.
-----Original Message-----
From: Gerhard Roets [mailto:[log in to unmask]]
Sent: Friday, June 07, 2002 11:00 AM
To: [log in to unmask]
Subject: Re: [HP3000-L] r2r Tape Carrying Cases
Never underestimate the bandwidth of a boeing loaded with lto's. But the big
thing is can you handle a burst of data that big :P
-----Original Message-----
From: Jeff Kell [mailto:[log in to unmask]]
Sent: 06 June 2002 22:28
To: [log in to unmask]
Subject: Re: [HP3000-L] r2r Tape Carrying Cases
"Johnson, Tracy" wrote:
>
> Remember those reel-to-reel carrying cases with
> the HP logo, handle and hasp?
>
> They carried 6 reel-to-reel-tapes for such fanciful
> mysterious places like off-site storage?
Many years ago when the net was young, there was a guy that used to have
a .signature file along the lines of:
"Never underestimate the bandwidth of a station wagon loaded
with 9-track tapes".
It was quite valid at the time, given the available network bandwidth.
Jeff
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