Supported Backends

LMCache ships several L2 storage backends. Select one or more with the --l2-adapter flag (each backend’s "type" is shown below); every backend has its own configuration page. They are grouped by the kind of medium they target.

Backend	--l2-adapter type	Group
NIXL	nixl_store / nixl_store_dynamic	High-performance I/O
FileSystem	fs	File & Block
FS (native)	fs_native	File & Block
Raw Block (Rust)	raw_block	File & Block
S3	s3	Remote & Distributed
HF Bucket	hfbucket	Remote & Distributed
Mooncake Store	mooncake_store	Remote & Distributed
RESP (Redis/Valkey)	resp	Remote & Distributed
Aerospike	aerospike	Remote & Distributed
DAX	dax	Byte-addressable memory
Mock	mock	Testing

• NIXL
• File & Block
• Remote & Distributed
• DAX
• Mock