One of my tips in 2018 was about Transfer of datasets between different SYSPLEX. Meanwhile I have discovered a very important detail you need to be in control of when using XMIT/TRANSMIT or RECEIVE in a larger scale with regards to the frequency. Every time time you use XMIT as described in the above tip a few lines are added to a dataset named userid.LOG.MISC (unless your installation has made changes to the default setup). The same thing happens when using RECEIVE.

If you do not delete records from the LOG.MISC dataset you will eventually get a B37 abend on this dataset, but it is not reported as such by XMIT or RECEIVE when it occurs, which is pretty confusing. Fortunately it is very easy avoid writing to the LOG.MISC dataset on the XMIT command by adding the NOLOG option.

Unfortunately it is not as simple on the RECEIVE command. There is no NOLOG option available. Instead you may use an option called LOGDATASET(datasetname) or LOGDSNAME(datasetname). Using this option the records normally written to LOG.MISC will be written to datasetname instead. You do not have to create datasetname as the RECEIVE command does it for you.

I have chosen to use the NOLOG option on XMIT/TRANSMIT and LOGDSNAME(datasetname) on RECEIVE. Prior to executing RECEIVE I delete datasetname using the DELETE command. Thus I avoid the nasty B37 abend and I can do XMIT and RECEIVE as much as I like without problems.