Introduction

The Lightbits™ cluster storage solution distributes services and replicates data across different Lightbits servers to guarantee service and data availability when one or more Lightbits servers experience transient or permanent failures. A cluster of Lightbits servers replicates data internally and keeps it fully consistent and available in the presence of failures. From the perspective of clients accessing the data, data replication is transparent, and server failover is seamless.

Lightbits also protects the storage cluster from additional failures not related to the SSDs (e.g., CPU, memory, NICs) failures, software failures, network failures, or rack power failures. It provides additional data security through in-server Erasure Coding (EC) that protects servers from SSD failures and enables non-disruptive maintenance routines that temporarily disable access to storage servers (e.g., TOR firmware upgrades).