diff --git a/include/spdk/nvme_ocssd.h b/include/spdk/nvme_ocssd.h
index 00cc6d70d..e0cc48a92 100644
--- a/include/spdk/nvme_ocssd.h
+++ b/include/spdk/nvme_ocssd.h
@@ -73,6 +73,151 @@ int spdk_nvme_ocssd_ctrlr_cmd_geometry(struct spdk_nvme_ctrlr *ctrlr, uint32_t n
 				       void *payload, uint32_t payload_size,
 				       spdk_nvme_cmd_cb cb_fn, void *cb_arg);
 
+/**
+ * \brief Submits a vector reset command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param lba_list an array of LBAs for processing.
+ * LBAs must correspond to the start of chunks to reset.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_reset(struct spdk_nvme_ns *ns,
+					struct spdk_nvme_qpair *qpair,
+					uint64_t *lba_list, uint32_t num_lbas,
+					spdk_nvme_cmd_cb cb_fn, void *cb_arg);
+
+/**
+ * \brief Submits a vector write command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param buffer virtual address pointer to the data payload
+ * \param lba_list an array of LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ * \param io_flags set flags, defined by the SPDK_OCSSD_IO_FLAGS_* entries
+ * in spdk/nvme_ocssd_spec.h, for this I/O.
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_write(struct spdk_nvme_ns *ns,
+					struct spdk_nvme_qpair *qpair,
+					void *buffer,
+					uint64_t *lba_list, uint32_t num_lbas,
+					spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+					uint32_t io_flags);
+
+/**
+ * \brief Submits a vector write command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param buffer virtual address pointer to the data payload
+ * \param metadata virtual address pointer to the metadata payload, the length
+ * of metadata is specified by spdk_nvme_ns_get_md_size()
+ * \param lba_list an array of LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ * \param io_flags set flags, defined by the SPDK_OCSSD_IO_FLAGS_* entries
+ * in spdk/nvme_ocssd_spec.h, for this I/O.
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_write_with_md(struct spdk_nvme_ns *ns,
+		struct spdk_nvme_qpair *qpair,
+		void *buffer, void *metadata,
+		uint64_t *lba_list, uint32_t num_lbas,
+		spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+		uint32_t io_flags);
+
+/**
+ * \brief Submits a vector read command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param buffer virtual address pointer to the data payload
+ * \param lba_list an array of LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ * \param io_flags set flags, defined by the SPDK_OCSSD_IO_FLAGS_* entries
+ * in spdk/nvme_ocssd_spec.h, for this I/O.
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_read(struct spdk_nvme_ns *ns,
+				       struct spdk_nvme_qpair *qpair,
+				       void *buffer,
+				       uint64_t *lba_list, uint32_t num_lbas,
+				       spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				       uint32_t io_flags);
+
+/**
+ * \brief Submits a vector read command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param buffer virtual address pointer to the data payload
+ * \param metadata virtual address pointer to the metadata payload, the length
+ * of metadata is specified by spdk_nvme_ns_get_md_size()
+ * \param lba_list an array of LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ * \param io_flags set flags, defined by the SPDK_OCSSD_IO_FLAGS_* entries
+ * in spdk/nvme_ocssd_spec.h, for this I/O.
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_read_with_md(struct spdk_nvme_ns *ns,
+		struct spdk_nvme_qpair *qpair,
+		void *buffer, void *metadata,
+		uint64_t *lba_list, uint32_t num_lbas,
+		spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+		uint32_t io_flags);
+
+/**
+ * \brief Submits a vector copy command to the specified NVMe namespace.
+ *
+ * \param ns NVMe namespace to submit the command
+ * \param qpair I/O queue pair to submit the request
+ * \param dst_lba_list an array of destination LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param src_lba_list an array of source LBAs for processing.
+ * Must be allocated through spdk_dma_malloc() or its variants
+ * \param num_lbas number of LBAs stored in src_lba_list and dst_lba_list
+ * \param cb_fn callback function to invoke when the I/O is completed
+ * \param cb_arg argument to pass to the callback function
+ * \param io_flags set flags, defined by the SPDK_OCSSD_IO_FLAGS_* entries
+ * in spdk/nvme_ocssd_spec.h, for this I/O.
+ *
+ * \return 0 if successfully submitted, ENOMEM if an nvme_request
+ *	     structure cannot be allocated for the I/O request
+ */
+int spdk_nvme_ocssd_ns_cmd_vector_copy(struct spdk_nvme_ns *ns,
+				       struct spdk_nvme_qpair *qpair,
+				       uint64_t *dst_lba_list, uint64_t *src_lba_list,
+				       uint32_t num_lbas,
+				       spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				       uint32_t io_flags);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/spdk/nvme_ocssd_spec.h b/include/spdk/nvme_ocssd_spec.h
index 555c9c552..3660962c1 100644
--- a/include/spdk/nvme_ocssd_spec.h
+++ b/include/spdk/nvme_ocssd_spec.h
@@ -47,6 +47,9 @@ extern "C" {
 
 #include "spdk/assert.h"
 
+/** A maximum number of LBAs that can be issued by vector I/O commands */
+#define SPDK_NVME_OCSSD_MAX_LBAL_ENTRIES	64
+
 struct spdk_ocssd_dev_lba_fmt {
 	/**  Contiguous number of bits assigned to Group addressing */
 	uint8_t grp_len;
diff --git a/lib/nvme/Makefile b/lib/nvme/Makefile
index 32b5cc4a0..4177d880f 100644
--- a/lib/nvme/Makefile
+++ b/lib/nvme/Makefile
@@ -34,7 +34,8 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-C_SRCS = nvme_ctrlr_cmd.c nvme_ctrlr.c nvme_ns_cmd.c nvme_ns.c nvme_pcie.c nvme_qpair.c nvme.c nvme_quirks.c nvme_transport.c nvme_uevent.c nvme_ctrlr_ocssd_cmd.c
+C_SRCS = nvme_ctrlr_cmd.c nvme_ctrlr.c nvme_ns_cmd.c nvme_ns.c nvme_pcie.c nvme_qpair.c nvme.c nvme_quirks.c nvme_transport.c nvme_uevent.c nvme_ctrlr_ocssd_cmd.c \
+	nvme_ns_ocssd_cmd.c
 C_SRCS-$(CONFIG_RDMA) += nvme_rdma.c
 LIBNAME = nvme
 
diff --git a/lib/nvme/nvme_ns_ocssd_cmd.c b/lib/nvme/nvme_ns_ocssd_cmd.c
new file mode 100644
index 000000000..fa8498278
--- /dev/null
+++ b/lib/nvme/nvme_ns_ocssd_cmd.c
@@ -0,0 +1,227 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "spdk/nvme_ocssd.h"
+#include "nvme_internal.h"
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_reset(struct spdk_nvme_ns *ns,
+				    struct spdk_nvme_qpair *qpair,
+				    uint64_t *lba_list, uint32_t num_lbas,
+				    spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+	struct nvme_request	*req;
+	struct spdk_nvme_cmd	*cmd;
+
+	if (!lba_list || (num_lbas == 0) ||
+	    (num_lbas > SPDK_NVME_OCSSD_MAX_LBAL_ENTRIES)) {
+		return -EINVAL;
+	}
+
+	req = nvme_allocate_request_null(qpair, cb_fn, cb_arg);
+	if (req == NULL) {
+		return -ENOMEM;
+	}
+
+	cmd = &req->cmd;
+	cmd->opc = SPDK_OCSSD_OPC_VECTOR_RESET;
+	cmd->nsid = ns->id;
+
+	/*
+	 * Dword 10 and 11 store a pointer to the list of logical block addresses.
+	 * If there is a single entry in the LBA list, the logical block
+	 * address should be stored instead.
+	 */
+	if (num_lbas == 1) {
+		*(uint64_t *)&cmd->cdw10 = *lba_list;
+	} else {
+		*(uint64_t *)&cmd->cdw10 = spdk_vtophys(lba_list);
+	}
+
+	cmd->cdw12 = num_lbas - 1;
+
+	return nvme_qpair_submit_request(qpair, req);
+}
+
+static int
+_nvme_ocssd_ns_cmd_vector_rw_with_md(struct spdk_nvme_ns *ns,
+				     struct spdk_nvme_qpair *qpair,
+				     void *buffer, void *metadata,
+				     uint64_t *lba_list, uint32_t num_lbas,
+				     spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				     enum spdk_ocssd_io_opcode opc,
+				     uint32_t io_flags)
+{
+	struct nvme_request	*req;
+	struct spdk_nvme_cmd	*cmd;
+	struct nvme_payload	payload;
+	uint32_t valid_flags = SPDK_OCSSD_IO_FLAGS_LIMITED_RETRY;
+
+	if (io_flags & ~valid_flags) {
+		return -EINVAL;
+	}
+
+	if (!buffer || !lba_list || (num_lbas == 0) ||
+	    (num_lbas > SPDK_NVME_OCSSD_MAX_LBAL_ENTRIES)) {
+		return -EINVAL;
+	}
+
+	payload = NVME_PAYLOAD_CONTIG(buffer, metadata);
+
+	req = nvme_allocate_request(qpair, &payload, num_lbas * ns->sector_size, cb_fn, cb_arg);
+	if (req == NULL) {
+		return -ENOMEM;
+	}
+
+	cmd = &req->cmd;
+	cmd->opc = opc;
+	cmd->nsid = ns->id;
+
+	/*
+	 * Dword 10 and 11 store a pointer to the list of logical block addresses.
+	 * If there is a single entry in the LBA list, the logical block
+	 * address should be stored instead.
+	 */
+	if (num_lbas == 1) {
+		*(uint64_t *)&cmd->cdw10 = *lba_list;
+	} else {
+		*(uint64_t *)&cmd->cdw10 = spdk_vtophys(lba_list);
+	}
+
+	cmd->cdw12 = num_lbas - 1;
+	cmd->cdw12 |= io_flags;
+
+	return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_write_with_md(struct spdk_nvme_ns *ns,
+		struct spdk_nvme_qpair *qpair,
+		void *buffer, void *metadata,
+		uint64_t *lba_list, uint32_t num_lbas,
+		spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+		uint32_t io_flags)
+{
+	return _nvme_ocssd_ns_cmd_vector_rw_with_md(ns, qpair, buffer, metadata, lba_list,
+			num_lbas, cb_fn, cb_arg, SPDK_OCSSD_OPC_VECTOR_WRITE, io_flags);
+}
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_write(struct spdk_nvme_ns *ns,
+				    struct spdk_nvme_qpair *qpair,
+				    void *buffer,
+				    uint64_t *lba_list, uint32_t num_lbas,
+				    spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				    uint32_t io_flags)
+{
+	return _nvme_ocssd_ns_cmd_vector_rw_with_md(ns, qpair, buffer, NULL, lba_list,
+			num_lbas, cb_fn, cb_arg, SPDK_OCSSD_OPC_VECTOR_WRITE, io_flags);
+}
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_read_with_md(struct spdk_nvme_ns *ns,
+		struct spdk_nvme_qpair *qpair,
+		void *buffer, void *metadata,
+		uint64_t *lba_list, uint32_t num_lbas,
+		spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+		uint32_t io_flags)
+{
+	return _nvme_ocssd_ns_cmd_vector_rw_with_md(ns, qpair, buffer, metadata, lba_list,
+			num_lbas, cb_fn, cb_arg, SPDK_OCSSD_OPC_VECTOR_READ, io_flags);
+}
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_read(struct spdk_nvme_ns *ns,
+				   struct spdk_nvme_qpair *qpair,
+				   void *buffer,
+				   uint64_t *lba_list, uint32_t num_lbas,
+				   spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				   uint32_t io_flags)
+{
+	return _nvme_ocssd_ns_cmd_vector_rw_with_md(ns, qpair, buffer, NULL, lba_list,
+			num_lbas, cb_fn, cb_arg, SPDK_OCSSD_OPC_VECTOR_READ, io_flags);
+}
+
+int
+spdk_nvme_ocssd_ns_cmd_vector_copy(struct spdk_nvme_ns *ns,
+				   struct spdk_nvme_qpair *qpair,
+				   uint64_t *dst_lba_list,
+				   uint64_t *src_lba_list,
+				   uint32_t num_lbas,
+				   spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+				   uint32_t io_flags)
+{
+	struct nvme_request	*req;
+	struct spdk_nvme_cmd	*cmd;
+
+	uint32_t valid_flags = SPDK_OCSSD_IO_FLAGS_LIMITED_RETRY;
+
+	if (io_flags & ~valid_flags) {
+		return -EINVAL;
+	}
+
+	if (!dst_lba_list || !src_lba_list || (num_lbas == 0) ||
+	    (num_lbas > SPDK_NVME_OCSSD_MAX_LBAL_ENTRIES)) {
+		return -EINVAL;
+	}
+
+	req = nvme_allocate_request_null(qpair, cb_fn, cb_arg);
+	if (req == NULL) {
+		return -ENOMEM;
+	}
+
+	cmd = &req->cmd;
+	cmd->opc = SPDK_OCSSD_OPC_VECTOR_COPY;
+	cmd->nsid = ns->id;
+
+	/*
+	 * Dword 10 and 11 store a pointer to the list of source logical
+	 * block addresses.
+	 * Dword 14 and 15 store a pointer to the list of destination logical
+	 * block addresses.
+	 * If there is a single entry in the LBA list, the logical block
+	 * address should be stored instead.
+	 */
+	if (num_lbas == 1) {
+		*(uint64_t *)&cmd->cdw10 = *src_lba_list;
+		*(uint64_t *)&cmd->cdw14 = *dst_lba_list;
+	} else {
+		*(uint64_t *)&cmd->cdw10 = spdk_vtophys(src_lba_list);
+		*(uint64_t *)&cmd->cdw14 = spdk_vtophys(dst_lba_list);
+	}
+
+	cmd->cdw12 = num_lbas - 1;
+	cmd->cdw12 |= io_flags;
+
+	return nvme_qpair_submit_request(qpair, req);
+}
diff --git a/test/unit/lib/nvme/Makefile b/test/unit/lib/nvme/Makefile
index 7b10fd77f..cc0151b14 100644
--- a/test/unit/lib/nvme/Makefile
+++ b/test/unit/lib/nvme/Makefile
@@ -34,7 +34,8 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-DIRS-y = nvme.c nvme_ctrlr.c nvme_ctrlr_cmd.c nvme_ns.c nvme_ns_cmd.c nvme_pcie.c nvme_qpair.c nvme_quirks.c nvme_ctrlr_ocssd_cmd.c
+DIRS-y = nvme.c nvme_ctrlr.c nvme_ctrlr_cmd.c nvme_ns.c nvme_ns_cmd.c nvme_pcie.c nvme_qpair.c nvme_quirks.c nvme_ctrlr_ocssd_cmd.c \
+	 nvme_ns_ocssd_cmd.c
 
 .PHONY: all clean $(DIRS-y)
 
diff --git a/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/.gitignore b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/.gitignore
new file mode 100644
index 000000000..8f4f47a17
--- /dev/null
+++ b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/.gitignore
@@ -0,0 +1 @@
+nvme_ns_ocssd_cmd_ut
diff --git a/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/Makefile b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/Makefile
new file mode 100644
index 000000000..35fdb83a0
--- /dev/null
+++ b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/Makefile
@@ -0,0 +1,38 @@
+#
+#  BSD LICENSE
+#
+#  Copyright (c) Intel Corporation.
+#  All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#    * Redistributions of source code must retain the above copyright
+#      notice, this list of conditions and the following disclaimer.
+#    * Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions and the following disclaimer in
+#      the documentation and/or other materials provided with the
+#      distribution.
+#    * Neither the name of Intel Corporation nor the names of its
+#      contributors may be used to endorse or promote products derived
+#      from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../../..)
+
+TEST_FILE = nvme_ns_ocssd_cmd_ut.c
+
+include $(SPDK_ROOT_DIR)/mk/spdk.unittest.mk
diff --git a/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/nvme_ns_ocssd_cmd_ut.c b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/nvme_ns_ocssd_cmd_ut.c
new file mode 100644
index 000000000..637cffd1f
--- /dev/null
+++ b/test/unit/lib/nvme/nvme_ns_ocssd_cmd.c/nvme_ns_ocssd_cmd_ut.c
@@ -0,0 +1,673 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "spdk_cunit.h"
+
+#include "nvme/nvme_ns_ocssd_cmd.c"
+#include "nvme/nvme_ns_cmd.c"
+#include "nvme/nvme.c"
+
+#include "common/lib/test_env.c"
+
+DEFINE_STUB(spdk_nvme_qpair_process_completions, int32_t,
+	    (struct spdk_nvme_qpair *qpair,
+	     uint32_t max_completions), 0);
+
+static struct nvme_driver _g_nvme_driver = {
+	.lock = PTHREAD_MUTEX_INITIALIZER,
+};
+
+static struct nvme_request *g_request = NULL;
+
+int
+nvme_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req)
+{
+	g_request = req;
+
+	return 0;
+}
+
+void
+nvme_ctrlr_destruct(struct spdk_nvme_ctrlr *ctrlr)
+{
+}
+
+void
+nvme_ctrlr_proc_get_ref(struct spdk_nvme_ctrlr *ctrlr)
+{
+	return;
+}
+
+
+int
+nvme_ctrlr_process_init(struct spdk_nvme_ctrlr *ctrlr)
+{
+	return 0;
+}
+
+void
+nvme_ctrlr_proc_put_ref(struct spdk_nvme_ctrlr *ctrlr)
+{
+	return;
+}
+
+void
+spdk_nvme_ctrlr_get_default_ctrlr_opts(struct spdk_nvme_ctrlr_opts *opts, size_t opts_size)
+{
+	memset(opts, 0, sizeof(*opts));
+}
+
+bool
+spdk_nvme_transport_available(enum spdk_nvme_transport_type trtype)
+{
+	return true;
+}
+
+struct spdk_nvme_ctrlr *nvme_transport_ctrlr_construct(const struct spdk_nvme_transport_id *trid,
+		const struct spdk_nvme_ctrlr_opts *opts,
+		void *devhandle)
+{
+	return NULL;
+}
+
+int
+nvme_ctrlr_get_ref_count(struct spdk_nvme_ctrlr *ctrlr)
+{
+	return 0;
+}
+
+int
+nvme_transport_ctrlr_scan(const struct spdk_nvme_transport_id *trid,
+			  void *cb_ctx,
+			  spdk_nvme_probe_cb probe_cb,
+			  spdk_nvme_remove_cb remove_cb,
+			  bool direct_connect)
+{
+	return 0;
+}
+
+uint32_t
+spdk_nvme_ns_get_max_io_xfer_size(struct spdk_nvme_ns *ns)
+{
+	return ns->ctrlr->max_xfer_size;
+}
+
+static void
+prepare_for_test(struct spdk_nvme_ns *ns, struct spdk_nvme_ctrlr *ctrlr,
+		 struct spdk_nvme_qpair *qpair,
+		 uint32_t sector_size, uint32_t md_size, uint32_t max_xfer_size,
+		 uint32_t stripe_size, bool extended_lba)
+{
+	uint32_t num_requests = 32;
+	uint32_t i;
+
+	ctrlr->max_xfer_size = max_xfer_size;
+	/*
+	 * Clear the flags field - we especially want to make sure the SGL_SUPPORTED flag is not set
+	 *  so that we test the SGL splitting path.
+	 */
+	ctrlr->flags = 0;
+	ctrlr->min_page_size = 4096;
+	ctrlr->page_size = 4096;
+	memset(&ctrlr->opts, 0, sizeof(ctrlr->opts));
+	memset(ns, 0, sizeof(*ns));
+	ns->ctrlr = ctrlr;
+	ns->sector_size = sector_size;
+	ns->extended_lba_size = sector_size;
+	if (extended_lba) {
+		ns->flags |= SPDK_NVME_NS_EXTENDED_LBA_SUPPORTED;
+		ns->extended_lba_size += md_size;
+	}
+	ns->md_size = md_size;
+	ns->sectors_per_max_io = spdk_nvme_ns_get_max_io_xfer_size(ns) / ns->extended_lba_size;
+	ns->sectors_per_stripe = stripe_size / ns->extended_lba_size;
+
+	memset(qpair, 0, sizeof(*qpair));
+	qpair->ctrlr = ctrlr;
+	qpair->req_buf = calloc(num_requests, sizeof(struct nvme_request));
+	SPDK_CU_ASSERT_FATAL(qpair->req_buf != NULL);
+
+	for (i = 0; i < num_requests; i++) {
+		struct nvme_request *req = qpair->req_buf + i * sizeof(struct nvme_request);
+
+		STAILQ_INSERT_HEAD(&qpair->free_req, req, stailq);
+	}
+
+	g_request = NULL;
+}
+
+static void
+cleanup_after_test(struct spdk_nvme_qpair *qpair)
+{
+	free(qpair->req_buf);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_reset_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	uint64_t lba_list = 0x12345678;
+	spdk_nvme_ocssd_ns_cmd_vector_reset(&ns, &qpair, &lba_list, 1,
+					    NULL, NULL);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_RESET);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_reset(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	uint64_t lba_list[vector_size];
+	spdk_nvme_ocssd_ns_cmd_vector_reset(&ns, &qpair, lba_list, vector_size,
+					    NULL, NULL);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_RESET);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_read_with_md_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	md_size = 0x80;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size);
+	char *metadata = malloc(md_size);
+	uint64_t lba_list = 0x12345678;
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+	SPDK_CU_ASSERT_FATAL(metadata != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, md_size, max_xfer_size, 0, false);
+	rc = spdk_nvme_ocssd_ns_cmd_vector_read_with_md(&ns, &qpair, buffer, metadata,
+			&lba_list, 1, NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload.md == metadata);
+	CU_ASSERT(g_request->payload_size == PAGE_SIZE);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_READ);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+	free(metadata);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_read_with_md(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	md_size = 0x80;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size * vector_size);
+	char *metadata = malloc(md_size * vector_size);
+	uint64_t lba_list[vector_size];
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+	SPDK_CU_ASSERT_FATAL(metadata != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, md_size, max_xfer_size, 0, false);
+	rc = spdk_nvme_ocssd_ns_cmd_vector_read_with_md(&ns, &qpair, buffer, metadata,
+			lba_list, vector_size,
+			NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload.md == metadata);
+	CU_ASSERT(g_request->payload_size == max_xfer_size);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_READ);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+	free(metadata);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_read_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size);
+	uint64_t lba_list = 0x12345678;
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	rc = spdk_nvme_ocssd_ns_cmd_vector_read(&ns, &qpair, buffer, &lba_list, 1,
+						NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload_size == PAGE_SIZE);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_READ);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+	free(buffer);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_read(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size * vector_size);
+	uint64_t lba_list[vector_size];
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	rc = spdk_nvme_ocssd_ns_cmd_vector_read(&ns, &qpair, buffer, lba_list, vector_size,
+						NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload_size == max_xfer_size);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_READ);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+	free(buffer);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_write_with_md_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	md_size = 0x80;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size);
+	char *metadata = malloc(md_size);
+	uint64_t lba_list = 0x12345678;
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+	SPDK_CU_ASSERT_FATAL(metadata != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, md_size, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_write_with_md(&ns, &qpair, buffer, metadata,
+			&lba_list, 1, NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload.md == metadata);
+	CU_ASSERT(g_request->payload_size == PAGE_SIZE);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_WRITE);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+	free(metadata);
+}
+
+
+static void
+test_nvme_ocssd_ns_cmd_vector_write_with_md(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	md_size = 0x80;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size * vector_size);
+	char *metadata = malloc(md_size * vector_size);
+	uint64_t lba_list[vector_size];
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+	SPDK_CU_ASSERT_FATAL(metadata != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, md_size, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_write_with_md(&ns, &qpair, buffer, metadata,
+			lba_list, vector_size,
+			NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload.md == metadata);
+	CU_ASSERT(g_request->payload_size == max_xfer_size);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_WRITE);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+	free(metadata);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_write_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size);
+	uint64_t lba_list = 0x12345678;
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_write(&ns, &qpair, buffer,
+					    &lba_list, 1,    NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload_size == PAGE_SIZE);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_WRITE);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_write(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	char *buffer = malloc(sector_size * vector_size);
+	uint64_t lba_list[vector_size];
+
+	SPDK_CU_ASSERT_FATAL(buffer != NULL);
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_write(&ns, &qpair, buffer,
+					    lba_list, vector_size,
+					    NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+
+	CU_ASSERT(g_request->payload_size == max_xfer_size);
+	CU_ASSERT(g_request->payload.contig_or_cb_arg == buffer);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_WRITE);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+
+	free(buffer);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_copy_single_entry(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	uint64_t src_lba_list = 0x12345678;
+	uint64_t dst_lba_list = 0x87654321;
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_copy(&ns, &qpair, &dst_lba_list, &src_lba_list, 1,
+					   NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_COPY);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw10 == src_lba_list);
+	CU_ASSERT(g_request->cmd.cdw12 == 0);
+	CU_ASSERT(g_request->cmd.cdw14 == dst_lba_list);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+}
+
+static void
+test_nvme_ocssd_ns_cmd_vector_copy(void)
+{
+	const uint32_t	max_xfer_size = 0x10000;
+	const uint32_t	sector_size = 0x1000;
+	const uint32_t	vector_size = 0x10;
+
+	struct spdk_nvme_ns	ns;
+	struct spdk_nvme_ctrlr	ctrlr;
+	struct spdk_nvme_qpair	qpair;
+
+	int rc = 0;
+
+	uint64_t src_lba_list[vector_size];
+	uint64_t dst_lba_list[vector_size];
+
+	prepare_for_test(&ns, &ctrlr, &qpair, sector_size, 0, max_xfer_size, 0, false);
+	spdk_nvme_ocssd_ns_cmd_vector_copy(&ns, &qpair,
+					   dst_lba_list, src_lba_list, vector_size,
+					   NULL, NULL, 0);
+
+	SPDK_CU_ASSERT_FATAL(rc == 0);
+	SPDK_CU_ASSERT_FATAL(g_request != NULL);
+	SPDK_CU_ASSERT_FATAL(g_request->num_children == 0);
+	CU_ASSERT(g_request->cmd.opc == SPDK_OCSSD_OPC_VECTOR_COPY);
+	CU_ASSERT(g_request->cmd.nsid == ns.id);
+	CU_ASSERT(g_request->cmd.cdw12 == vector_size - 1);
+
+	nvme_free_request(g_request);
+	cleanup_after_test(&qpair);
+}
+
+int main(int argc, char **argv)
+{
+	CU_pSuite	suite = NULL;
+	unsigned int	num_failures;
+
+	if (CU_initialize_registry() != CUE_SUCCESS) {
+		return CU_get_error();
+	}
+
+	suite = CU_add_suite("nvme_ns_cmd", NULL, NULL);
+	if (suite == NULL) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
+
+	if (
+		CU_add_test(suite, "nvme_ns_ocssd_cmd_vector_reset", test_nvme_ocssd_ns_cmd_vector_reset) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_reset_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_reset_single_entry) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_read_with_md",
+			       test_nvme_ocssd_ns_cmd_vector_read_with_md) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_read_with_md_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_read_with_md_single_entry) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_read", test_nvme_ocssd_ns_cmd_vector_read) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_read_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_read_single_entry) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_write_with_md",
+			       test_nvme_ocssd_ns_cmd_vector_write_with_md) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_write_with_md_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_write_with_md_single_entry) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_write", test_nvme_ocssd_ns_cmd_vector_write) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_write_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_write_single_entry) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_copy", test_nvme_ocssd_ns_cmd_vector_copy) == NULL
+		|| CU_add_test(suite, "nvme_ocssd_ns_cmd_vector_copy_single_entry",
+			       test_nvme_ocssd_ns_cmd_vector_copy_single_entry) == NULL
+	) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
+
+	g_spdk_nvme_driver = &_g_nvme_driver;
+
+	CU_basic_set_mode(CU_BRM_VERBOSE);
+	CU_basic_run_tests();
+	num_failures = CU_get_number_of_failures();
+	CU_cleanup_registry();
+	return num_failures;
+}
diff --git a/test/unit/unittest.sh b/test/unit/unittest.sh
index f24796cf1..20c4942f7 100755
--- a/test/unit/unittest.sh
+++ b/test/unit/unittest.sh
@@ -74,6 +74,7 @@ $valgrind $testdir/lib/nvme/nvme_ctrlr_cmd.c/nvme_ctrlr_cmd_ut
 $valgrind $testdir/lib/nvme/nvme_ctrlr_ocssd_cmd.c/nvme_ctrlr_ocssd_cmd_ut
 $valgrind $testdir/lib/nvme/nvme_ns.c/nvme_ns_ut
 $valgrind $testdir/lib/nvme/nvme_ns_cmd.c/nvme_ns_cmd_ut
+$valgrind $testdir/lib/nvme/nvme_ns_ocssd_cmd.c/nvme_ns_ocssd_cmd_ut
 $valgrind $testdir/lib/nvme/nvme_qpair.c/nvme_qpair_ut
 $valgrind $testdir/lib/nvme/nvme_pcie.c/nvme_pcie_ut
 $valgrind $testdir/lib/nvme/nvme_quirks.c/nvme_quirks_ut