take replica count from values, default to 2; ideally we want 2 mds replicas, 1 active and 1 standby Change-Id: Ifd9e717ad0371e52ce26e0da3393f5f634495f58
take replica count from values, default to 2; ideally we want 2 mds replicas, 1 active and 1 standby Change-Id: Ifd9e717ad0371e52ce26e0da3393f5f634495f58