Blog
Technical notes
What we learned running backups of archives with millions of files — costs, pitfalls and what to test before you need it.
· 7 min read
What disappears from the bill of cheap storage
Price per gigabyte is the most visible line and almost never the largest one. Requests, egress, minimum retention and retrieval are what decide the real cost per TB over the long run.
· 7 min read
Why restore is the part nobody tests
A backup that finishes without errors doesn't prove recovery works. What to test, in what order, and how to run a rehearsal that fits in a single morning.
· 5 min read
Backup and sync are not the same thing, and the difference shows up on your worst day
If your only backup is a folder that syncs, a file deleted by mistake disappears from both sides in seconds.
· 5 min read
Who can open your backup
Every backup service answers this question. Most answer it buried in the terms of service. Ours is right here.
· 6 min read
We backed up 510,000 files and the database did not grow by a single row
A scale test with numbers, method and stated limits — including what would not work in your case.
· 5 min read
Why backing up millions of small files costs so much
The cost does not come from the space used. It comes from the number of operations — and the maths is easy to do before you spend anything.
· 5 min read
"Deep Archive in practice: what nobody tells you about restoring"
The cheapest AWS tier has rules that only show up on the day you need your data back. Worth knowing them first.
· 5 min read
"Immutable backup with Object Lock: what actually protects you"
Immutability only counts if an attacker who controls the account cannot undo it. The difference lives in configuration details.