diff --git a/include/spdk/blob.h b/include/spdk/blob.h
index d496560bb..629d58320 100644
--- a/include/spdk/blob.h
+++ b/include/spdk/blob.h
@@ -197,6 +197,15 @@ struct spdk_bs_dev {
 
 	bool (*is_zeroes)(struct spdk_bs_dev *dev, uint64_t lba, uint64_t lba_count);
 
+	/* Translate blob lba to lba on the underlying bdev.
+	 * This operation recurses down the whole chain of bs_dev's.
+	 * Returns true and initializes value of base_lba on success.
+	 * Returns false on failure.
+	 * The function may fail when blob lba is not backed by the bdev lba.
+	 * For example, when we eventually hit zeroes device in the chain.
+	 */
+	bool (*translate_lba)(struct spdk_bs_dev *dev, uint64_t lba, uint64_t *base_lba);
+
 	uint64_t	blockcnt;
 	uint32_t	blocklen; /* In bytes */
 };
diff --git a/lib/blob/Makefile b/lib/blob/Makefile
index f87bdd838..e12216aba 100644
--- a/lib/blob/Makefile
+++ b/lib/blob/Makefile
@@ -6,7 +6,7 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-SO_VER := 8
+SO_VER := 9
 SO_MINOR := 0
 
 C_SRCS = blobstore.c request.c zeroes.c blob_bs_dev.c
diff --git a/lib/blob/blob_bs_dev.c b/lib/blob/blob_bs_dev.c
index a189f54c3..eae2ae87f 100644
--- a/lib/blob/blob_bs_dev.c
+++ b/lib/blob/blob_bs_dev.c
@@ -136,6 +136,24 @@ blob_bs_is_zeroes(struct spdk_bs_dev *dev, uint64_t lba, uint64_t lba_count)
 					    bs_io_unit_to_back_dev_lba(blob, lba_count));
 }
 
+static bool
+blob_bs_translate_lba(struct spdk_bs_dev *dev, uint64_t lba, uint64_t *base_lba)
+{
+	struct spdk_blob_bs_dev *b = (struct spdk_blob_bs_dev *)dev;
+	struct spdk_blob *blob = b->blob;
+
+	assert(base_lba != NULL);
+	if (bs_io_unit_is_allocated(blob, lba)) {
+		*base_lba = bs_blob_io_unit_to_lba(blob, lba);
+		return true;
+	}
+
+	assert(blob->back_bs_dev != NULL);
+	return blob->back_bs_dev->translate_lba(blob->back_bs_dev,
+						bs_io_unit_to_back_dev_lba(blob, lba),
+						base_lba);
+}
+
 struct spdk_bs_dev *
 bs_create_blob_bs_dev(struct spdk_blob *blob)
 {
@@ -161,6 +179,7 @@ bs_create_blob_bs_dev(struct spdk_blob *blob)
 	b->bs_dev.write_zeroes = blob_bs_dev_write_zeroes;
 	b->bs_dev.unmap = blob_bs_dev_unmap;
 	b->bs_dev.is_zeroes = blob_bs_is_zeroes;
+	b->bs_dev.translate_lba = blob_bs_translate_lba;
 	b->blob = blob;
 
 	return &b->bs_dev;
diff --git a/lib/blob/zeroes.c b/lib/blob/zeroes.c
index 5fdf0b649..ad7305675 100644
--- a/lib/blob/zeroes.c
+++ b/lib/blob/zeroes.c
@@ -124,6 +124,12 @@ zeroes_is_zeroes(struct spdk_bs_dev *dev, uint64_t lba, uint64_t lba_count)
 	return true;
 }
 
+static bool
+zeroes_translate_lba(struct spdk_bs_dev *dev, uint64_t lba, uint64_t *base_lba)
+{
+	return false;
+}
+
 static struct spdk_bs_dev g_zeroes_bs_dev = {
 	.blockcnt = UINT64_MAX,
 	.blocklen = 512,
@@ -139,6 +145,7 @@ static struct spdk_bs_dev g_zeroes_bs_dev = {
 	.write_zeroes = zeroes_write_zeroes,
 	.unmap = zeroes_unmap,
 	.is_zeroes = zeroes_is_zeroes,
+	.translate_lba = zeroes_translate_lba,
 };
 
 struct spdk_bs_dev *
diff --git a/lib/blobfs/Makefile b/lib/blobfs/Makefile
index e8d7e4a9e..fe21506ba 100644
--- a/lib/blobfs/Makefile
+++ b/lib/blobfs/Makefile
@@ -6,7 +6,7 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-SO_VER := 7
+SO_VER := 8
 SO_MINOR := 0
 
 C_SRCS = blobfs.c tree.c
diff --git a/lib/lvol/Makefile b/lib/lvol/Makefile
index a3f9d2674..d92750237 100644
--- a/lib/lvol/Makefile
+++ b/lib/lvol/Makefile
@@ -6,7 +6,7 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-SO_VER := 7
+SO_VER := 8
 SO_MINOR := 0
 
 C_SRCS = lvol.c
diff --git a/module/blob/bdev/Makefile b/module/blob/bdev/Makefile
index f8c9d598a..bffa660d0 100644
--- a/module/blob/bdev/Makefile
+++ b/module/blob/bdev/Makefile
@@ -6,7 +6,7 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-SO_VER := 8
+SO_VER := 9
 SO_MINOR := 0
 
 C_SRCS = blob_bdev.c
diff --git a/module/blob/bdev/blob_bdev.c b/module/blob/bdev/blob_bdev.c
index c12169368..a4e52b92b 100644
--- a/module/blob/bdev/blob_bdev.c
+++ b/module/blob/bdev/blob_bdev.c
@@ -360,6 +360,13 @@ bdev_blob_is_zeroes(struct spdk_bs_dev *dev, uint64_t lba, uint64_t lba_count)
 	return false;
 }
 
+static bool
+bdev_blob_translate_lba(struct spdk_bs_dev *dev, uint64_t lba, uint64_t *base_lba)
+{
+	*base_lba = lba;
+	return true;
+}
+
 static void
 blob_bdev_init(struct blob_bdev *b, struct spdk_bdev_desc *desc)
 {
@@ -385,6 +392,7 @@ blob_bdev_init(struct blob_bdev *b, struct spdk_bdev_desc *desc)
 	b->bs_dev.unmap = bdev_blob_unmap;
 	b->bs_dev.get_base_bdev = bdev_blob_get_base_bdev;
 	b->bs_dev.is_zeroes = bdev_blob_is_zeroes;
+	b->bs_dev.translate_lba = bdev_blob_translate_lba;
 }
 
 int