RE: Which Tape Drive?

["Jerry C. Adams" <midrange@xxxxxxxx>]

Thanks, I needed that.

Jerry C. Adams
IBM i Programmer/Analyst
Some of the facts are true, some are distorted, and some are untrue. - U.S.
State Department spokesman
--
A&K Wholesale
Murfreesboro, TN
615-867-5070


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John Jones
Sent: Thursday, April 07, 2011 11:09 AM
To: Midrange Systems Technical Discussion
Subject: Re: Which Tape Drive?

http://en.wikipedia.org/wiki/Linear_Tape-Open
http://en.wikipedia.org/wiki/Digital_Data_Storage

In short: LTO1-5 runs in speeds of 20-140MB/s depending on tape generation.
DDS runs at 0.18-6.9MB/s.

The slowest LTO (original spec) is 3x faster than the fastest DDS.

On Thu, Apr 7, 2011 at 10:19 AM, Jerry C. Adams <midrange@xxxxxxxx> wrote:

> "Compatibility" reminds me of a Rita Rudner routine.  She was talking
about
> LPs to 8-tracks to cassettes.  Said she wasn't going to CDs until she got
a
> written guarantee that this was the last change.  Minutes later she was
> talking about street people: "You've seen those people walking down the
> street talking to themselves.  Those are the ones that bought 8-tracks."
>
> Charles, I think, said something about slower, too.  Can you, or anyone,
> define slower - relatively speaking: LTO5 to 4mm?
>
> At my previous employer, I used to use lower capacity (and cheaper)
> cartridges to do a Save 21.  Took 4-6 hours.  One day I used the higher
> capacity cartridge; it took just over one [1] hour.
>
> Jerry C. Adams
> IBM i Programmer/Analyst
> Facts are stupid things. - Ronald Reagan
> --
> A&K Wholesale
> Murfreesboro, TN
> 615-867-5070
>
>
> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
> Sent: Thursday, April 07, 2011 9:55 AM
> To: midrange-l@xxxxxxxxxxxx
> Subject: Re: Which Tape Drive?
>
> 4mm: Slower, less compatibility with others ( I have *ZERO customers
> with 4mm for example)
>
> LTO5: Faster, more compatible.
>
>  - Larry
>
> On 4/7/2011 8:54 AM, Jerry C. Adams wrote:
> > Getting back to our Power 7 proposal, an LTO5 and 4MM have been proposed
> as
> > alternatives.  I see LTO mentioned all of the time in the list, but the
> cost
> > of the 4MM is about $2k less.  So what would be the downside/advantage
of
> > going to the cheaper 4MM?
> >
> >
> >
> > Jerry C. Adams
> >
> > IBM i Programmer/Analyst
> >
> > The streets are safe in Philadelphia, it's only the people who make them
> > unsafe. - Frank Rizzo, major of Philadelphia
> >
> > --
> >
> > A&K Wholesale
> >
> > Murfreesboro, TN
> >
> > 615-867-5070
> --
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