Storage Management

What Are Retention Policies in Time-Series Databases?

A retention policy is a rule that automatically deletes (or archives) time-series data once it passes a defined age, so storage does not grow without bound as…

What is the C-SCAN Disk Scheduling Algorithm?

C-SCAN (Circular SCAN) services disk requests by sweeping the head in one direction only to the end of the disk, then jumping immediately back to the starting…

What is the LOOK Disk Scheduling Algorithm?

LOOK is a disk scheduling algorithm that moves the head in one direction servicing requests, but reverses as soon as there are no more requests in that directi…

What are RAID Levels and How Do They Differ?

RAID (Redundant Array of Independent Disks) combines multiple physical disks into one logical unit using striping, mirroring, or parity, and different RAID lev…

What is Disk Partitioning and Why is it Used?

Disk partitioning is the process of dividing a single physical disk into multiple independent logical sections, called partitions, each of which the operating…

What is File System Mounting?

File system mounting is the process of attaching a file system on a partition or device to a specific point (the mount point) in the operating system’s single,…

How Do Docker Volumes Persist Data?

Docker volumes are storage areas managed by the Docker engine, living outside any single container’s writable layer, so data written to a volume survives conta…

What is a Kubernetes StatefulSet?

A StatefulSet manages Pods that need a stable, unique network identity and stable, persistent storage across restarts — each Pod gets a predictable name and it…