I will second that Denys. We make MANY service calls on tape drives that
turn out to be caused by nothing other than bad media.
John Lee
Vaske Computer Solutions
At 02:24 PM 4/20/06 -0500, Denys Beauchemin wrote:
>The LTO Ultrium would only be available for N4000 class machines due to LVD
>requirements and also the needed performance to keep these drives fed with
>data.
>
>When I was with Hicomp, we did some tests of Hiback on the 3000 with an LTO
>and we got about 25 MB/second transfer rate to tape, IIRC. I believe
>another 3rd party product was doing about the same rate as well. This was
>some years ago and my memory is fading with age, so you need to check.
>
>The DLT had to be fed at 7-8 MB/second to get good streaming, and faster was
>better. This situation just got even more so with the LTO; you need a fast
>system to keep them going efficiently and only PCI or newer would do the
>trick.
>
>One way of finding out if your system could benefit from LTO is simply this:
>If you currently backup to a DLT8000 and you get a rate of about 45GB per
>hour (12MB/second) per drive, you might want to investigate LTO, less than
>that, don't bother.
>
>Also, the comment about putting multiple backups on the same tape is very
>good, but again please remember to use the very best tapes you can find as
>now you can lose multiple backups because of one bad tape. And yes, I am
>well aware of the mechanisms used to skip over bad spots and such; spend the
>money.
>
>Denys
>
>-----Original Message-----
>From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf
>Of Johnson, Tracy
>Sent: Thursday, April 20, 2006 2:01 PM
>To: [log in to unmask]
>Subject: Re: [HP3000-L] Ultrium 960
>
>Don't know. Only heard about it being available for HP-UX below.
>
>If it only requires a driver, it should work, ya think?
>
>What would MAPPER report?
>
>Tracy Johnson
>Measurement Specialties, Inc.
>
>BT
>
>
>
>
>
>
>
>NNNN
>
>
> > -----Original Message-----
> > From: HP-3000 Systems Discussion
> > [mailto:[log in to unmask]] On Behalf Of Jeff Cox
> > Sent: Thursday, April 20, 2006 2:52 PM
> > To: [log in to unmask]
> > Subject: Re: [HP3000-L] Ultrium 960
> >
> >
> > We have an LTO for our Windows servers and are able to back
> > up over a TB onto three tapes.
> >
> > Is there an LTO solution available for the 3000 or is it just
> > the 9000?
> >
> > -----Original Message-----
> > From: HP-3000 Systems Discussion
> > [mailto:[log in to unmask]] On Behalf Of Johnson, Tracy
> > Sent: Thursday, April 20, 2006 2:48 PM
> > To: [log in to unmask]
> > Subject: Re: [HP3000-L] Ultrium 960
> >
> > For my DLT-4's at 80GB, I can back up my system at about $40
> > a pop. If I use an LTO, I can have about 8 backups of my
> > system at 12.50 a pop. Maybe even more with software compression.
> >
> > (This assumes to use an Append feature to get more than one
> > backup on a
> > tape.)
> >
> > ((This also assumes your dataspace keeps a similar size after
> > conversion from Turbo/Image.))
> >
> > > -----Original Message-----
> > > From: HP-3000 Systems Discussion
> > > [mailto:[log in to unmask]] On Behalf Of Shawn Gordon
> > > Sent: Thursday, April 20, 2006 2:18 PM
> > > To: [log in to unmask]
> > > Subject: Re: [HP3000-L] Ultrium 960
> > >
> > >
> > > Holy CRAP, that is insane. I hadn't heard anything about these, but
> > > they aren't even all that expensive at about 3k. This is
> > what I need
> > > for my Mindawn system.
> > >
> > > At 11:00 AM 4/20/2006, Denys Beauchemin wrote:
> > > >Kent, sorry to take so long to answer. The LTO Ultrium is
> > > an exciting
> > > >backup technology that is head and shoulders above DLT and
> > > far superior
> > > >to DDS. :-)
> > > >
> > > >The capacities the LTO Ultrium tapes are astounding and it
> > should be
> > > >remembered that when you can store up to 800 gigabytes on a single
> > > >tape, you want to be confident that the tape is the very
> > > best quality
> > > >you can get.
> > > >
> > > >You can buy Ultrium tapes online at HP and be prepared to
> > > pay $100 or
> > > >more per tape. If 800GB is way too much capacity, you can
> > > buy smaller
> > > >capacity tapes and the cost less also, but again please do
> > > not try to
> > > >pinch pennies on these tapes, get the best.
> > > >
> > > >
> > > >Denys
> > > >-----Original Message-----
> > > >From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
> > > >Behalf Of Kent Wallace
> > > >Sent: Friday, April 07, 2006 4:10 PM
> > > >To: [log in to unmask]
> > > >Subject: [HP3000-L] Ultrium 960
> > > >
> > > >We got our HP-UX box in to replace the HP3000. It has a
> > Ultrium 960.
> > > >
> > > >
> > > >
> > > >Does anyone know a good place to Ultrium 960 tapes?
> > > >
> > > >
> > > >
> > > >Kent Wallace
> >
> >
> > Tracy Johnson
> > Measurement Specialties, Inc.
> >
> > BT
> >
> >
> >
> >
> >
> >
> >
> > NNNN
> >
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> >
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> >
>
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>
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