Scaling is capacity planning
One of cloud’s clearest advantages over classic VPS is fast vertical resize: growing CPU/RAM with a short reboot or live change. That flexibility controls cost during campaigns and seasonal load. KuzeyDC cloud servers let you grow resources while keeping NVMe and Istanbul latency.
Vertical or horizontal?
- Vertical (resize): grow one instance—first step for single-server apps
- Horizontal: multiple instances + load balancer—higher availability
When to resize
- CPU steal / load average stays high
- RAM pressure drives swap
- Disk I/O queues grow (even on NVMe if the plan is the limit)
VPS upgrades often need migration or rebuild; cloud resize is usually more ops-friendly. Still, grow by metrics—not by always picking the largest plan. Decide with traffic graphs, cost and architecture (is the DB separate?).