005
Sizing a backup appliance: the five numbers that matter
Front-end capacity, change rate, retention, ingest rate and restore rate. Get these and the configuration follows. Skip one and the appliance is wrong.
Security
Recovery, immutability, identity, exposure.
004
Deduplication ratios are a marketing number until you name the dataset
A 50:1 ratio and a 4:1 ratio can both be honest. The difference is what was measured, and the assumption in your quote determines whether the appliance fits.
003
Nobody sizes for restore
Backup windows get modelled to the hour. The restore rate, which is the number that matters on the day something has gone wrong, is usually nowhere in the document.
002
The backup appliance market: who is winning, and at what
The category split in two. Dedicated backup storage is consolidating around fewer hardware vendors while the growth moved to software platforms that sell cyber resilience.
001
Your immutable backup is not an air gap
Both words get used as though they mean the same protection. They do not, and the difference is the credential that can reach the repository.