SLEEP function in REXX

sachin.mandaliya · New User Joined: 17 Jan 2007 Posts: 24 Location: India

Hello,

How can I use SLEEP function in REXX?

I have gone through manual in that it is given as external function and to use it the syntax is given as below

x = sleep(no. of seconds) or
call sleep <no of seconds>

I tried this but it is not working. Do I need to include any specific library for that ?

Srihari Gonugunta · Posted: Thu Oct 23, 2008 11:17 am

Sachin,
Please try this.

expat · Posted: Thu Oct 23, 2008 11:19 am

The use of sleep during a REXX has often been discussed in the forum, and its general usage is highly frowned upon.

Maybe if you were to explain why you need to sleep a REXX exec then maybe some of the users here could come up with a better option.

sachin.mandaliya · New User Joined: 17 Jan 2007 Posts: 24 Location: India

First of all thanks for the suggestion.

Actually I am trying to make tool using rexx which will recall all migrated datasets from the list.
And the system has one limitation that the you cannot recall more than 1000 datasets otherwise recall command will fail. So I am trying to use function such as sleep to wait for a perticular time and then again start recalling datasets.

gcicchet · Posted: Thu Oct 23, 2008 11:36 am

Hi,

it seems to me you have issues when you need to recall so many datasets.

I hope you have sufficient space available.

Gerry

expat · Posted: Thu Oct 23, 2008 11:40 am

I am not sure that sleeping the REXX is the solution.

Unfortunately there is no set time for HSM to actually process a recall request because there are so many contributing factors which may affect the elapsed request time.

Also, these is no way to interrogate HSM from within the REXX to monitor the progress of the so far submitted requests and determine that it is a good time to restart the request submission.

Wht the need to recall thousands and thousands of datasets ?

Robert Sample · Posted: Thu Oct 23, 2008 4:49 pm

Have you discussed this with the storage administrators of your site? They may or may not have enough disk space for all the recalled datasets, and if there's a valid business reason for such massive recalls they may need to adjust the migration criteria, or set up a different storage pool for these datasets.

dick scherrer · Posted: Thu Oct 23, 2008 10:18 pm

Hello,

sachin.mandaliya · New User Joined: 17 Jan 2007 Posts: 24 Location: India

Hi All,

Thanks for all your suggestions, with above code I was able to hold execution of REXX program.

enrico-sorichetti · Posted: Mon Nov 03, 2008 2:20 pm

/rant on
it' s a great satisfaction to try to give useful advice based on
many years of experience an large customer support
and see people so stubborn to implement stupid solutions

they just belong to the frowned upon category of people who do not ask
a question to get a reasonable answer...
but ask a question to receive the answer that suits them
and if that is not the one ... then it is wrong

dick scherrer · Posted: Mon Nov 03, 2008 2:44 pm

Hi Enrico,

expat · Posted: Mon Nov 03, 2008 3:59 pm

Fixing the symptom rather than the cause gains nothing but more stupid requests - but hey, the guy that implements the stupid solution is the one who usually gets asked to do it again, and again, and again, and again.

As a storage guy, I monitor my HSM queues and if I see something like this going down will usually investigate what the user/idiot (delete as applicable) is trying to do.

The only time that I have done something like this was when the client insisted that all migrated datasets were to be fed through the ACS routines following the implementation of DFSMSsms. And it was done in a controlled fashion.

dick scherrer · Posted: Mon Nov 03, 2008 8:43 pm

Hi Expat,

expat · Posted: Mon Nov 03, 2008 9:02 pm

dajm · New User Joined: 08 Sep 2018 Posts: 1 Location: Australia

Wow, what a stunning over-reaction to a simple question. Sachin won't ask a question here again and Srihari wont be in a hurry to offer a solution either. What I see here is 2 people collaborating to find a solution and then others trying to look intelligent by bringing Sachin and Srihari down. If you don't agree with the question or the answer and you are still eager to show every one how superior you are, perhaps you could answer like this "your problem can be solved in this way ... but I recommend this alternative approach...".
There are valid times when a SLEEP function is required. Eg I need to re-try something 5 times at 1 minute intervals before I abandon the attempt.
Even Sachin's case could be valid - perhaps he needs to restore all of the files used by his test stream before the test starts because he cannot have the test delayed by auto-recalls?

Robert Sample · Posted: Sat Sep 08, 2018 6:57 am