About The Sev-1 Database
Real lessons from databases that can’t go down.
What is Sev-1?
Sev-1 is the highest severity level in incident response. Production is down. Revenue is bleeding. Everyone’s on the call.
This newsletter is about what happens in those moments and how to prevent them.
Who’s Behind This?
I’m Haider Z, Database Escalation Engineer at Microsoft.
8+ years. 1000+ Sev-1 incidents resolved. PostgreSQL, MySQL, MariaDB.
When teams hit a wall, the case lands on my desk. I’m the last line before the product engineering team. I’ve seen what breaks at scale, why it breaks, and what could have caught it earlier.
Now I write about it.
The Journey
October 2025: Started this newsletter with 0 subscribers.
Today: 1k+ engineers learning from real incidents.
I also share daily PostgreSQL tips on LinkedIn started the same month with 500 followers, now 2400+ following the journey.
Pageviews are growing 2x month-over-month.
This isn’t a side project. It’s a commitment.
Sponsor This Newsletter
Building a database tool? Have content for DBAs, SREs, or reliability engineers?
This audience is technical, engaged, and growing fast.
Let’s talk → haiderdba98@gmail.com
What You’ll Get
Root Cause Analyses
Real incidents. Real breakdowns. What triggered it, how it was fixed, what to monitor to catch it earlier.
Database Insights
Practical fixes you can apply today. Performance, replication, configs, silent killers.
Real-World Database Engineering
Long-form stories on reliability patterns, tuning strategies, and database internals.
DBA Toolkit
Production-ready scripts and tools built from real incidents.
Why Upgrade?
Free subscribers get insights. Paid subscribers get the full playbook.
Complete Root Cause Analyses (not just summaries)
Deep dives with queries, configs, and scripts
DBA Toolkit access
Early access to new content and tools
One incident prevented = years of subscription paid for.
8$/month
DBA Toolkit
Scripts and guides I’ve built from real production work:
PostgreSQL Health Report v2.0
Stored Functions + SQL Script + 60+ Queries
A professional health check and monitoring tool that detects performance issues, stability risks, and security problems before they turn into outages. Includes FIX commands.
Built for DBAs, developers, and DevOps engineers running PostgreSQL in production.
The Sev-1 Incident Playbook
36 Pages | Field-Tested | Built from 950+ Incidents
Can’t answer What’s the first thing I do when production breaks?
This playbook is for you.
Written after 1000+ real-world incidents 70% Sev-1 cases with Fortune 100 companies under C-level pressure. This is the mindset guide every DBA, SRE, and on-call engineer wishes they had earlier.
No fancy tools. No dashboards. No AI magic.
Just how to think, act, and lead when the clock starts ticking.
Triage Like a Senior DBA: 25+ PostgreSQL triage queries used in real Sev-1 cases
PostgreSQL Query Optimization Cheatsheet
FREE
A-to-Z reference guide for PostgreSQL query optimization.
Covers optimizer techniques, actionable tuning tips, and strategies to improve query performance. Easy to read, ready to remember.
Who This Is For
DBAs & DBREs managing systems that can’t fail
SREs & Platform Engineers responsible for uptime
Backend Developers who touch the database layer
Anyone who’s been woken up at 3am by a page
Why Subscribe?
The real outage isn’t the crash.
It’s the signal you didn’t monitor.
The config you didn’t question.
The failover you never tested.
I write so you can learn from incidents that already happened instead of living through your own.
Join 550+ engineers building databases that survive.
