> > Posted by gsg on October 4, 2007 11:19 AM > > > > I'm looking for a High Water Mark for a HLQ. Lets say that I have > > application "AAAA", which is also the HLQ. I want to be able > > to somehow get > > the information on how high the total allocation gets for > > this HLQ. At 4pm > > before our batch starts the allocation might be 500 GB, but > > during our batch > > process at 2am it goes as high as 900 GB. I want to be able > > to track how > > high it gets (HWM). > > Posted by John McKown on October 4, 2007 11:23 AM > > You're going to have a problem with this, unless you have some product > which does it for you (I remember an old product called Kommand which > did it). The reason is that files come and go. So if you look at a > particular point in time, you might miss something (say a file which is > created at the start of a job, but deleted later in the job stream). As > I recall, Kommand worked by using the IGGPOST0 (DASD allocation) exit to > write records to SMF about dataset created / extended / deleted. You > could then run a report agains that data. > > There is nothing in z/OS itself to do this. We don't care about this > sort of thing, so I am not aware of what might be available. > That's right. There is not an easy way to do it in native z/OS. The only way I know of is to run DCOLLECT against the disks periodically, like every half hour, during the 4pm to 2am time frame. That would produce reports that you could then analyze programmatically. However, that would still be only approximate because no matter how small you made the repeat interval the high water mark could occur between runs, and when you do the next run of DCOLLECT it could have dropped. Also, DCOLLECT can be expensive in terms of resource use because unless you can limit it by volser it will hit every VTOC in the shop.
I thought Kommand was still on the market. It used to be marketed by Pace Applied Technologies, so I did a Goggle search on "KOMMAND PACE". I got several hits of current job openings for IT Chargeback Consultants, but nothing about the product. Kommand was an IT chargeback product. I was involved with it in a previous life. Hmmm, maybe I should check into the consulting jobs. Tom Kelman ***************************************************************************** If you wish to communicate securely with Commerce Bank and its affiliates, you must log into your account under Online Services at http://www.commercebank.com or use the Commerce Bank Secure Email Message Center at https://securemail.commercebank.com NOTICE: This electronic mail message and any attached files are confidential. The information is exclusively for the use of the individual or entity intended as the recipient. If you are not the intended recipient, any use, copying, printing, reviewing, retention, disclosure, distribution or forwarding of the message or any attached file is not authorized and is strictly prohibited. If you have received this electronic mail message in error, please advise the sender by reply electronic mail immediately and permanently delete the original transmission, any attachments and any copies of this message from your computer system. ***************************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
