3420 tapes at 6250 BPI had 170MB per 2400 reel. 6 reels per Gigabytes. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=SP&infotype=PM&appname=STGE_TS_SM_USEN&htmlfid=TSD00063USEN&attachment=TSD00063USEN.PDF#loaded
60-1,000GB per tape, so 360-6,000 reels equivalent. 2 million 80 byte cards per reel. On Thu, May 14, 2015 at 6:26 PM, Campbell Jay <[email protected]> wrote: > Maybe I'm playing in the dinosaur bone yard... > > Any attempt to run TAPESCAN on a virtual tape volume results in: > IEC527I BLOCK COUNTS: DEVICE=4, DCB=9 > IEC023I 237-0C, IFG0551H,.............. > z/OS 2.1 TS7740 > > I added the Block Count Unequal exit to the DCB EXLST parm. > Basically RETURN,RC=4 continue processing. > It's not being called... DC x'0000' in the middle. > > Native tape works fine. > Well - my little tiny test tape did. > When I ran one of the backup tapes... > S0C9-09 kind of expected. > Calculating the number of tape inches. > Too lazy to do the math - but just guessing - > 1 3592 = 1 50 foot diameter 6520 BPI round reel. > > Enjoy. > > > Jay Campbell > IBM OS Support Section > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
