diff --git a/lib/ftl/ftl_core.c b/lib/ftl/ftl_core.c
index c5dda3f77..3c9de5ba3 100644
--- a/lib/ftl/ftl_core.c
+++ b/lib/ftl/ftl_core.c
@@ -216,6 +216,7 @@ ftl_get_next_batch(struct spdk_ftl_dev *dev)
 	struct ftl_wbuf_entry *entries[FTL_DEQUEUE_ENTRIES];
 	TAILQ_HEAD(, ftl_io_channel) ioch_queue;
 	size_t i, num_dequeued, num_remaining;
+	uint64_t *metadata;
 
 	if (batch == NULL) {
 		batch = TAILQ_FIRST(&dev->free_batches);
@@ -251,6 +252,13 @@ ftl_get_next_batch(struct spdk_ftl_dev *dev)
 			for (i = 0; i < num_dequeued; ++i) {
 				batch->iov[batch->num_entries + i].iov_base = entries[i]->payload;
 				batch->iov[batch->num_entries + i].iov_len = FTL_BLOCK_SIZE;
+
+				if (batch->metadata != NULL) {
+					metadata = (uint64_t *)((char *)batch->metadata +
+								i * dev->md_size);
+					*metadata = entries[i]->lba;
+				}
+
 				TAILQ_INSERT_TAIL(&batch->entries, entries[i], tailq);
 			}
 
diff --git a/lib/ftl/ftl_core.h b/lib/ftl/ftl_core.h
index aed7353e5..e02689dae 100644
--- a/lib/ftl/ftl_core.h
+++ b/lib/ftl/ftl_core.h
@@ -115,6 +115,7 @@ struct ftl_batch {
 	/* Index within spdk_ftl_dev.batch_array */
 	uint32_t				index;
 	struct iovec				*iov;
+	void					*metadata;
 	TAILQ_ENTRY(ftl_batch)			tailq;
 };
 
@@ -188,6 +189,7 @@ struct spdk_ftl_dev {
 
 	/* Metadata size */
 	size_t					md_size;
+	void					*md_buf;
 
 	/* Transfer unit size */
 	size_t					xfer_size;
diff --git a/lib/ftl/ftl_init.c b/lib/ftl/ftl_init.c
index 7386c687e..e5e9237eb 100644
--- a/lib/ftl/ftl_init.c
+++ b/lib/ftl/ftl_init.c
@@ -1208,6 +1208,16 @@ ftl_dev_init_io_channel(struct spdk_ftl_dev *dev)
 		return -1;
 	}
 
+	if (dev->md_size > 0) {
+		dev->md_buf = spdk_zmalloc(dev->md_size * dev->xfer_size * FTL_BATCH_COUNT,
+					   dev->md_size, NULL, SPDK_ENV_LCORE_ID_ANY,
+					   SPDK_MALLOC_DMA);
+		if (dev->md_buf == NULL) {
+			SPDK_ERRLOG("Failed to allocate metadata buffer\n");
+			return -1;
+		}
+	}
+
 	dev->iov_buf = calloc(FTL_BATCH_COUNT, dev->xfer_size * sizeof(struct iovec));
 	if (!dev->iov_buf) {
 		SPDK_ERRLOG("Failed to allocate iovec buffer\n");
@@ -1223,6 +1233,10 @@ ftl_dev_init_io_channel(struct spdk_ftl_dev *dev)
 		batch->num_entries = 0;
 		batch->index = i;
 		TAILQ_INIT(&batch->entries);
+		if (dev->md_buf != NULL) {
+			batch->metadata = (char *)dev->md_buf + i * dev->xfer_size * dev->md_size;
+		}
+
 		TAILQ_INSERT_TAIL(&dev->free_batches, batch, tailq);
 	}
 
@@ -1367,6 +1381,8 @@ ftl_dev_free_sync(struct spdk_ftl_dev *dev)
 	ftl_release_bdev(dev->nv_cache.bdev_desc);
 	ftl_release_bdev(dev->base_bdev_desc);
 
+	spdk_free(dev->md_buf);
+
 	assert(dev->num_io_channels == 0);
 	free(dev->ioch_array);
 	free(dev->iov_buf);