Re: OnTape to Tape and Disk

Martin Thanks. I understand the concept but need to think through (and test) whether ontape -c would handle this correctly and hold the local tape drive open and positioned, or whether I would have to use ontape -a from a log_full script. Another solution I have thought of is to allow ontape -a to write to my local tape drive through log_full and then immediately manually extract the filled logical log off the disk. Anyone know if this is possible ?? Keith On 10/10/06, Martin Fuerderer <MARTINFU@de.ibm.com> wrote: > Hi, > > not officially. > > The trick is to create a named pipe and have a program > running that reads from that named pipe. In your case it > would read and duplicate the data to the local and to the > remote tape device. Regarding the implementation of this > program you are on your own (clever shell script or > small C-programm, ...). Maybe someone within IIUG has > solved that problem already for you. :) > > In your onconfig file you specify the named pipe as > LTAPEDEV. That way "ontape -c" will write the data into > the named pipe, so that your program can read the data. > > You may have to spend some additional thought on the > handling of "tapes". As you will still have the LTAPESIZE > configured, "ontape -c" will prompt for a new tape every > so often. > (Currently I'm not sure if the LTAPESIZE=0 is already supported > in your version. You may want to check that and possibly give > it a try.) > > Regards, > Martin > -- > Martin Fuerderer > IBM Informix Development Munich, Germany > Information Management > > Informix URLs list: http://home.arcor.de/mfu1/informix/urls.html > Informix in the news: > http://www.crn.com/sections/software/software.jhtml?articleId=193004835 > > IBM Information On Demand Global Conference > October 15-20, 2006, Anaheim, California > see http://www.ibm.com/events/informationondemand > > informix-list-bounces@iiug.org wrote on 10.10.2006 12:30:10: > > > O/S AIX 5.3 > > Engine IDS 9.4 FC6 > > We currently use a very simple (but highly effective) archive > > mechanism, ontape -L 0 every night (approx 1.25 hrs) and ontape -c (to > > a different tape drive) running continuously from a dedicated > > terminal. The log tape is changed daily at 10:00 and sent off-site > > with the archive tape. > > This works for us and prvodes an easily understood and tested restore > > mechanism both to the same machine or off-site. > > Management have noted that the log tape is on-site and 'vulnerable' to > > fire, flood and articulated lorries (ground floor server room !) > > whilst it is receiving log files. > > I have a second server (also AIX) off-site at the end of a wide pipe > > and would like to ship the log files there as they fill (using any > > well documented log_full.sh script) however, I want also to retain the > > convenience of having the logs on tape to maintain the existing > > restore mechanism. > > Is it possible to archive completed log files to BOTH tape and disk?? > > > > Keith > > _______________________________________________ > > Informix-list mailing list > > Informix-list@iiug.org > > http://www.iiug.org/mailman/listinfo/informix-list > >