From 4c7506e509e3040746627dc55e4ae253297cc4d8 Mon Sep 17 00:00:00 2001 From: Chris Lu Date: Wed, 5 Jun 2019 10:37:29 -0700 Subject: [PATCH] Created Erasure coding for warm storage (markdown) --- Erasure-coding-for-warm-storage.md | 6 ++++++ 1 file changed, 6 insertions(+) create mode 100644 Erasure-coding-for-warm-storage.md diff --git a/Erasure-coding-for-warm-storage.md b/Erasure-coding-for-warm-storage.md new file mode 100644 index 0000000..0cdb670 --- /dev/null +++ b/Erasure-coding-for-warm-storage.md @@ -0,0 +1,6 @@ +Warm data are accessed less frequently. To store them more efficiently, you can enable erasure coding. + +Benefit +* Efficient memory usage and faster startup time. The volume server does not load index data into memory. +* RS(10,4) allows loss of 4 shards of data with 1.4x data size. Compared to 5x data size, it saves 3.6x disk space. +