Meta server: fix replay write format with storage tiers.
Meta server: fix replay write format with storage tiers.

thebigbrain/qfs,quantcast/qfs,quantcast/qfs,thebigbrain/qfs,chanwit/qfs,chanwit/qfs,quantcast/qfs,fengshao0907/qfs,qnu/qfs,qnu/qfs,chanwit/qfs,quantcast/qfs,chanwit/qfs,thebigbrain/qfs,chanwit/qfs,qnu/qfs,qnu/qfs,qnu/qfs,thebigbrain/qfs,quantcast/qfs,fengshao0907/qfs,qnu/qfs,quantcast/qfs,qnu/qfs,fengshao0907/qfs,fengshao0907/qfs,thebigbrain/qfs,qnu/qfs,fengshao0907/qfs,thebigbrain/qfs,chanwit/qfs,fengshao0907/qfs,quantcast/qfs,fengshao0907/qfs,thebigbrain/qfs,chanwit/qfs,quantcast/qfs,chanwit/qfs,fengshao0907/qfs,thebigbrain/qfs