On Fri, Feb 21, 2003 at 06:14:37PM -0500, Gene Heskett wrote:
> Humm, if thats a 40gig tape (with compression) it would be about a 
> 20 gigger without.  And if hardware compression is also enabled, it 
> would not be unusual to over-run the EOT because the compressed 
> stuff you are sending it will usually expand some, often 15 to 20% 
> in going thru the hardware compressor too.

Hardware compression is off.

> Throw in that marketing is usually a bit optimistic in saying its a 
> 20 gigger without compression, and that always needs a fudge factor 
> when actually estimating, and it likely this will happen.

But fudging by 100%?  I don't buy that... :-)

> Also, while this doesn't enter into it for me, see the average dump 
> rates reported below, how does that compare to the drives rated 
> speed at its compression state?  If that drive is faster then the 
> data comeing in, it will write null blocks for a bit waiting on 
> data, and this wastes space.  Could be a pretty good percentage 
> under the right conditions, like no, or too small a holding disk.

I have a big holding disk.

Holding disk /hold: 47560764 KB disk space available, that's plenty

-- 
John Oliver, CCNA                            http://www.john-oliver.net/
Linux/UNIX/network consulting         http://www.john-oliver.net/resume/
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