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Notes

I have to make a post mentioning the last couple of months, anything else would just be weird I feel. I hope you all are doing as well as can be in these unpredictable times. I know I have been personally affected by this pandemic in multiple ways yet I feel fortunate - things could have been so much worse. 

While I am one of the lucky people who work in a job that lends itself reasonably well to work from home, it took some time to get used to which had me focus more time and effort on things like home improvements and new daily routines to help me adjust to this new way of living.

Thankfully I was not alone in this journey and I am thankful to all my friends, family, and of course my partner for being there for me. We all need to take care of each other.

The last couple of weeks I have resumed my work on mainframe related projects and I have a series of blog posts that I wish to publish coming up. Some of these topics are going to be deep-waters territory for me, but the community has been supportive and offered their insights and corrections in the past - so I feel this will work just fine!

The topics I have planned are:
  1. Updating a Mainframe [Looking at firmware updates, EC streams, etc.]
  2. How does a Mainframe boot? [Looking at the IPL process]
  3. Defining I/O devices [What is IOCDS ? + Looking at HCM]
  4. Fejkon: PCIe and DMA [Talking a bit about what a PCIe device is, and why this thing called DMA is needed]
Hopefully it will be an interesting series!

As always, thanks for reading

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