LOL :)

Still in use?

On Fri, 19 Mar 2010, Lightner, Jeff wrote:

> I'm starting to think my DC6525 may have no value any longer.  :-)
>
> -----Original Message-----
> From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Justin
> Piszcz
> Sent: Friday, March 19, 2010 3:53 PM
> To: Ed Wilts
> Cc: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] LTO-5 tape, what will it be called in NBU?
> hcart2?
>
>
>
> On Fri, 19 Mar 2010, Ed Wilts wrote:
>
>> On Fri, Mar 19, 2010 at 2:04 PM, Justin Piszcz
> <jpiszcz AT lucidpixels DOT com>wrote:
>>
>>> While this is cool, I am still waiting for the announcement and
> pricing on
>>> the IBM/Fujitsu(?) 35TB/tape technology.
>>>
>>
>> Unless you never plan on taking your tapes out of the library or have
> some
>> VERY fast hardware, 35TB/tape doesn't do much except send a lot of
> empty
>> tape off-site.
>>
>> 35TB is 35,000,000 MB.  At 100MB/sec, that 350,000 seconds or a bit
> over 97
>> hours. In other words, you'd be writing for 4 straight days averaging
>> 100MB/sec to fill a tape.  Assuming you only write to a tape during a
>> 12-hour backup window, 7/8 of your tape will be unused.
>>
>> I'm personally waiting for an environment here where I can sustain
> writing
>> to all of my tape drives at 100MB/sec.  I can't drive all of my LTO-3
> drives
>> at full speed.  Having drives that demand a lot more than that just
>> contributes to a lot more stop/start.
> Hi,
>
> I currently have the 100MiB/s++ (see 500-600MiB/s peaks) already with
> 10GbE
> and multiple LTO-3 drives connected for several years now.  I am
> definitely
> looking towards the 35TB tapes, I wonder how fast you will be able to
> push
> data to them and what their cost will be.
>
> For smaller environments, they regularly achieve 100MiB/s (LTO-4) with
> single
> gigabit nics without any issue.  What speeds do you see?
>
> Justin.
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