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/ *** sendmail, Apache, ftp, DNS, spam filtering *** **** Colocation, T1s, web/email/ftp hosting ****
