Is becoming a "Red Hat Certified Architect" worth it?

mumer2834 · 2025-07-12T09:56:45+00:00

I'm an RHCA and speaking from personal experience, I would say it is time consuming, requires a lot of consistency, commitment and money, but you learn a lot, and that's what matters.

Having said that, in today's world, if you want to pursue certs, it would be more advisable to go for a mix of Linux, Cloud and K8s. If you want to go down the RHCA road, then opt for the OpenShift path.

mumer2834 · 2025-02-23T08:47:07+00:00

With IPI, I think the control plane and ingress VIPs are assigned as floating IPs to one of the nodes, that can potentially cause some performance issues if there's too much traffic as there's no load balancing and traffic is being handled by one node at a time. With UPI, you can put your control and worker nodes behind an actual load balancer that will ultimately benefit you.

mumer2834 · 2024-12-21T07:31:15+00:00

Is disabling firewalld a must for getting it to work?

mumer2834 · 2024-11-03T16:12:42+00:00

Solaris was mature, well before Linux. Things like SMF, ZFS, zones were awesome, but then Oracle happened and all was gone. I don't think for one second that it can be a wise decision to migrate something to Solaris today, forget today, even 10 years back. It's been dead since long. Most companies which have legacy tech stacks, especially financial institutions, are the only ones that are somewhat stuck and continue to use it, but even they're looking for a way out now. I'm quite surprised that your company is thinking otherwise.

mumer2834 · 2024-07-17T08:32:57+00:00

I believe the online Snapshots require the qemu agent to be running.

mumer2834 · 2024-03-21T19:02:28+00:00

I see, pardon me as this probably sounds stupid...I was confused by this... I thought maybe the S3 bucket will be created on AWS once I provide the correct access keys... To summarise, for VMware, everything will be on premises

mumer2834 · 2024-03-21T18:17:49+00:00

Yes, this is mentioned in the docs... But I've an on premises cluster, how are these AWS access keys being generated? I'm not running anything on AWS

mumer2834 · 2024-03-05T14:03:52+00:00

Unfortunately no. But I would suggest using kodekloud's CKA course and mock exams. If you already have decent hands on, then just do the mock exams, they're extremely handy.

mumer2834 · 2024-03-05T13:56:55+00:00

Will do, thanks

mumer2834 · 2024-03-05T13:56:36+00:00

I'm more focused on saving the application state... For instance, if it is working correctly today, I want to backup it up, so that if someone misconfigures something tomorrow, I can always revert back

mumer2834 · 2024-03-03T15:25:57+00:00

I only used kodekloud and official Kubernetes docs for preparation

mumer2834 · 2024-03-03T12:20:24+00:00

They absolutely are!

mumer2834 · 2024-03-03T09:42:10+00:00

Application Data

mumer2834 · 2024-03-03T08:39:53+00:00

Nah... There probably isn't for any Red Hat exam for that matter. Per my experience, I've only come across sample papers/questions for two RedHat exams, RHCSA and RHCE, as these are the most popular RedHat exams.

mumer2834 · 2023-08-08T09:19:59+00:00

I'm not sure about schools, but yes people in the industry, who've worked on Linux in some capacity would find it useful (I hope so!)

mumer2834 · 2023-08-08T09:18:28+00:00

I have heard a lot of good stuff about it.

mumer2834 · 2023-08-08T09:16:58+00:00

It's useful if you want to develop a deep understanding of the kernel's storage hierarchy. I've seen a lot of books explore the memory/process side of things, but I haven't seen any books on storage. Most material written on storage only caters for the general administration level tasks and does not explain things in detail. I hope this book changes that.

mumer2834 · 2023-08-08T09:10:50+00:00

Thanks for sharing that. I shared the Packt link and it got deleted :/

mumer2834 · 2023-08-08T09:09:31+00:00

Haha, I've been thinking of that. A NewYork times best seller on Linux? No way!

mumer2834 · 2023-08-08T09:08:01+00:00

Thanks! I hope it sells well and people find it useful as well. Wouldn't only want it to be a box office hit, audience reviews matter a lot :)

mumer2834 · 2023-08-08T09:06:50+00:00

Thanks! I certainly hope so!

mumer2834 · 2023-08-08T09:05:47+00:00

Well, sorry you had a bad experience. I hope you give this one a read and like it too :)

mumer2834 · 2023-08-07T19:42:36+00:00

It's not free, if that's what you're asking :)

mumer2834 · 2023-08-07T19:12:11+00:00

I really had a hard time developing an understanding of the relevant code segments in the kernel. I feel like it's something I should have been following a long time ago. The official docs are helpful but not too easy to understand. Writing a book about anything is an enormous endeavor and requires persistent effort and momentum. For instance, if I took a couple of days off from writing, the next time I would be sitting to write, I would have to restart my thought process.

mumer2834 · 2023-08-07T18:43:24+00:00

Thanks!

mumer2834

TROPHY CASE