diff --git a/include/spdk/blob_bdev.h b/include/spdk/blob_bdev.h
index 7193b10a1..0dd122709 100644
--- a/include/spdk/blob_bdev.h
+++ b/include/spdk/blob_bdev.h
@@ -1,7 +1,7 @@
 /*   SPDX-License-Identifier: BSD-3-Clause
  *   Copyright (C) 2017 Intel Corporation.
  *   All rights reserved.
- *   Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ *   Copyright (c) 2022-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
  */
 
 /** \file
@@ -66,6 +66,10 @@ int spdk_bdev_create_bs_dev(const char *bdev_name, bool write,
 /**
  * Claim the bdev module for the given blobstore.
  *
+ * If bs_dev was opened read-write using spdk_bdev_create_bs_dev_ext(), a read-write-once claim is
+ * taken. If bs_dev was opened read-only using spdk_bdev_create_bs_dev_ro(), a read-only-many claim
+ * is taken.
+ *
  * \param bs_dev Blobstore block device.
  * \param module Bdev module to claim.
  *
diff --git a/module/blob/bdev/blob_bdev.c b/module/blob/bdev/blob_bdev.c
index 0a6689357..2494755c5 100644
--- a/module/blob/bdev/blob_bdev.c
+++ b/module/blob/bdev/blob_bdev.c
@@ -18,6 +18,7 @@ struct blob_bdev {
 	struct spdk_bs_dev	bs_dev;
 	struct spdk_bdev	*bdev;
 	struct spdk_bdev_desc	*desc;
+	bool			write;
 };
 
 struct blob_resubmit {
@@ -325,11 +326,14 @@ bdev_blob_resubmit(void *arg)
 int
 spdk_bs_bdev_claim(struct spdk_bs_dev *bs_dev, struct spdk_bdev_module *module)
 {
-	struct spdk_bdev_desc *desc = __get_desc(bs_dev);
+	struct blob_bdev *blob_bdev = (struct blob_bdev *)bs_dev;
+	struct spdk_bdev_desc *desc = blob_bdev->desc;
+	enum spdk_bdev_claim_type claim_type;
 	int rc;
 
-	rc = spdk_bdev_module_claim_bdev_desc(desc, SPDK_BDEV_CLAIM_READ_MANY_WRITE_ONE,
-					      NULL, module);
+	claim_type = blob_bdev->write ? SPDK_BDEV_CLAIM_READ_MANY_WRITE_ONE :
+		     SPDK_BDEV_CLAIM_READ_MANY_WRITE_NONE;
+	rc = spdk_bdev_module_claim_bdev_desc(desc, claim_type, NULL, module);
 	if (rc != 0) {
 		SPDK_ERRLOG("could not claim bs dev\n");
 		return rc;
@@ -442,6 +446,7 @@ spdk_bdev_create_bs_dev(const char *bdev_name, bool write,
 	blob_bdev_init(b, desc);
 
 	*bs_dev = &b->bs_dev;
+	b->write = write;
 
 	return 0;
 }
diff --git a/test/unit/lib/blob/blob_bdev.c/blob_bdev_ut.c b/test/unit/lib/blob/blob_bdev.c/blob_bdev_ut.c
index 2243bde4e..625d5122f 100644
--- a/test/unit/lib/blob/blob_bdev.c/blob_bdev_ut.c
+++ b/test/unit/lib/blob/blob_bdev.c/blob_bdev_ut.c
@@ -315,6 +315,53 @@ claim_bs_dev(void)
 	g_bdev = NULL;
 }
 
+static void
+claim_bs_dev_ro(void)
+{
+	struct spdk_bdev bdev;
+	struct spdk_bs_dev *bs_dev = NULL, *bs_dev2 = NULL;
+	struct blob_bdev *blob_bdev;
+	int rc;
+
+	init_bdev(&bdev, "bdev0", 16);
+	g_bdev = &bdev;
+
+	rc = spdk_bdev_create_bs_dev("bdev0", false, NULL, 0, NULL, NULL, &bs_dev);
+	CU_ASSERT(rc == 0);
+	SPDK_CU_ASSERT_FATAL(bs_dev != NULL);
+
+	blob_bdev = (struct blob_bdev *)bs_dev;
+	CU_ASSERT(blob_bdev->desc->claim_type == SPDK_BDEV_CLAIM_NONE);
+	CU_ASSERT(bdev.claim_type == SPDK_BDEV_CLAIM_NONE);
+	CU_ASSERT(!blob_bdev->desc->write);
+
+	/* Can get an shared reader claim */
+	rc = spdk_bs_bdev_claim(bs_dev, &g_bdev_mod);
+	CU_ASSERT(rc == 0);
+	CU_ASSERT(!blob_bdev->desc->write);
+	CU_ASSERT(bdev.claim_type == SPDK_BDEV_CLAIM_READ_MANY_WRITE_NONE);
+	CU_ASSERT(bdev.claim_desc == blob_bdev->desc);
+
+	/* Claim blocks a writer without messing up the claim. */
+	rc = spdk_bdev_create_bs_dev_ext("bdev0", NULL, NULL, &bs_dev2);
+	CU_ASSERT(rc == -EPERM);
+	CU_ASSERT(bdev.claim_type == SPDK_BDEV_CLAIM_READ_MANY_WRITE_NONE);
+	CU_ASSERT(bdev.claim_desc == blob_bdev->desc);
+
+	/* Another reader is just fine */
+	rc = spdk_bdev_create_bs_dev("bdev0", false, NULL, 0, NULL, NULL, &bs_dev2);
+	CU_ASSERT(rc == 0);
+	SPDK_CU_ASSERT_FATAL(bs_dev2 != NULL);
+	bs_dev2->destroy(bs_dev2);
+
+	bs_dev->destroy(bs_dev);
+	CU_ASSERT(bdev.open_cnt == 0);
+	CU_ASSERT(bdev.claim_type == SPDK_BDEV_CLAIM_NONE);
+	CU_ASSERT(bdev.claim_module == NULL);
+	CU_ASSERT(bdev.claim_desc == NULL);
+	g_bdev = NULL;
+}
+
 int
 main(int argc, char **argv)
 {
@@ -330,6 +377,7 @@ main(int argc, char **argv)
 	CU_ADD_TEST(suite, create_bs_dev_ro);
 	CU_ADD_TEST(suite, create_bs_dev_rw);
 	CU_ADD_TEST(suite, claim_bs_dev);
+	CU_ADD_TEST(suite, claim_bs_dev_ro);
 
 	CU_basic_set_mode(CU_BRM_VERBOSE);
 	CU_basic_run_tests();