It's not for 3590s ... The labels are written at the density of the drive ... so if they don't match, the labels need to be re-written. Most TMS's always re-write the labels (VM:Tape, Dynam/T, etc.) so this is not a problem for the end user or application. However, you might run into a problem if a 3590 CART init'd at a higher density (3590H) is selected for SCRATCH on a lower density drive (3590E) because the lower density drive will not be able to read the VOL1 written at the higher density ... you'll likely get a "NON-COMPAT" error. JR (Steven) Imler CA Senior Software Engineer Tel: +1 703 708 3479 Fax: +1 703 708 3267 [EMAIL PROTECTED]
________________________________ From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Stracka, James (GTI) Sent: Friday, January 19, 2007 08:44 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: 3590J to 3590H In days of old, the volume label was written at the lowest density of the tape. The data portion at that specified. I know not if this is still true. -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Mark Pace Sent: Friday, January 19, 2007 8:31 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: 3590J to 3590H LONG STORY- but I won't bore everyone with it. 4 days later and the new 3590s are running. Had specialist tell me I needed to mark all my migration/backup volumes as full. Also to set readcompatability in the Attributes section of RMM. So I wanted to re-int, label, a tape to see if it writes on the tape at the new density. So I dumped the label of a volume and it says for density - 3590. I re-int the volume and it still says 3590 for the density. So I don't know if it worked or not. I did this all under VM because of my new problem. How do you initialize an existing tape under z/OS? I tried to use DITTO INT function. But it tells me I can't do that to a Scratch tape. Well I sure don't want to do it to a Master tape! See my JCL below. //DTOBAT PROC //DTOBAT EXEC PGM=DITTO //STEPLIB DD DSN=DIT.V1R3M0.SDIT MOD1,DISP=SHR //SYSPRINT DD SYSOUT=* //SYSABEND DD SYSOUT=* //SYSDUMP DD SYSOUT=* // PEND //* //INITTAPE EXEC DTOBAT //TAPE DD DISP=(SHR,KEEP),DSN=DUMMY,LABEL=(,BLP),UNIT=CART, // VOL=(,RETAIN,SER=ML5000) //SYSIN DD * $$DITTO REW LABEL=BLP,OUTPUT=TAPE $$DITTO INT OUTPUT=TAPE,VOLSER=ML5000 $$DITTO RUN OUTPUT=TAPE -- Mark Pace Mainline Information Systems ________________________________ If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here <http://www.ml.com/email_terms/> for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ ________________________________
