diff --git a/suites/reef/rgw/tier-2_rgw_rados_multisite_ecpool.yaml b/suites/reef/rgw/tier-2_rgw_rados_multisite_ecpool.yaml
new file mode 100644
index 0000000000..e1ca392683
--- /dev/null
+++ b/suites/reef/rgw/tier-2_rgw_rados_multisite_ecpool.yaml
@@ -0,0 +1,280 @@
+# Test suite for evaluating RGW multi-site deployment scenario.
+# the data bucket is configured to use EC
+
+# conf : conf/reef/rgw/ms-ec-profile-4+2-cluster.yaml
+---
+
+tests:
+
+  # Cluster deployment stage
+
+  - test:
+      abort-on-fail: true
+      desc: Install software pre-requisites for cluster deployment.
+      module: install_prereq.py
+      name: setup pre-requisites
+
+  - test:
+      abort-on-fail: true
+      clusters:
+        ceph-pri:
+          config:
+            verify_cluster_health: true
+            steps:
+              - config:
+                  command: bootstrap
+                  service: cephadm
+                  args:
+                    mon-ip: node1
+                    orphan-initial-daemons: true
+                    initial-dashboard-password: admin@123
+                    dashboard-password-noupdate: true
+              - config:
+                  command: add_hosts
+                  service: host
+                  args:
+                    attach_ip_address: true
+                    labels: apply-all-labels
+              - config:
+                  command: apply
+                  service: mgr
+                  args:
+                    placement:
+                      label: mgr
+              - config:
+                  command: apply
+                  service: mon
+                  args:
+                    placement:
+                      label: mon
+              - config:
+                  command: apply
+                  service: osd
+                  args:
+                    all-available-devices: true
+              - config:
+                  args:
+                    - "ceph osd erasure-code-profile set rgwec01 k=4 m=2"
+                    - "crush-failure-domain=host crush-device-class=hdd"
+                  command: shell
+              - config:
+                  args:
+                    - "ceph osd pool create primary.rgw.buckets.data 32 32"
+                    - "erasure rgwec01"
+                  command: shell
+              - config:
+                  args:
+                    - "ceph osd pool application enable"
+                    - "primary.rgw.buckets.data rgw"
+                  command: shell
+              - config:
+                  command: apply
+                  service: rgw
+                  pos_args:
+                    - shared.pri
+                  args:
+                    placement:
+                      nodes:
+                        - node7
+        ceph-sec:
+          config:
+            verify_cluster_health: true
+            steps:
+              - config:
+                  command: bootstrap
+                  service: cephadm
+                  args:
+                    mon-ip: node1
+                    orphan-initial-daemons: true
+                    initial-dashboard-password: admin@123
+                    dashboard-password-noupdate: true
+              - config:
+                  command: add_hosts
+                  service: host
+                  args:
+                    attach_ip_address: true
+                    labels: apply-all-labels
+              - config:
+                  command: apply
+                  service: mgr
+                  args:
+                    placement:
+                      label: mgr
+              - config:
+                  command: apply
+                  service: mon
+                  args:
+                    placement:
+                      label: mon
+              - config:
+                  command: apply
+                  service: osd
+                  args:
+                    all-available-devices: true
+              - config:
+                  args:
+                    - "ceph osd erasure-code-profile set rgwec01 k=4 m=2"
+                    - "crush-failure-domain=host crush-device-class=hdd"
+                  command: shell
+              - config:
+                  args:
+                    - "ceph osd pool create secondary.rgw.buckets.data 32 32"
+                    - "erasure rgwec01"
+                  command: shell
+              - config:
+                  args:
+                    - "ceph osd pool application enable"
+                    - "secondary.rgw.buckets.data rgw"
+                  command: shell
+              - config:
+                  command: apply
+                  service: rgw
+                  pos_args:
+                    - shared.sec
+                  args:
+                    placement:
+                      nodes:
+                        - node7
+      desc: RHCS cluster deployment using cephadm.
+      destroy-cluster: false
+      module: test_cephadm.py
+      name: deploy cluster
+      polarion-id: CEPH-83575222
+
+  - test:
+      abort-on-fail: true
+      clusters:
+        ceph-pri:
+          config:
+            command: add
+            id: client.1
+            node: node8
+            install_packages:
+              - ceph-common
+            copy_admin_keyring: true
+        ceph-sec:
+          config:
+            command: add
+            id: client.1
+            node: node8
+            install_packages:
+              - ceph-common
+            copy_admin_keyring: true
+      desc: Configure the RGW client system
+      destroy-cluster: false
+      module: test_client.py
+      name: configure client
+      polarion-id: CEPH-83573758
+  - test:
+      abort-on-fail: true
+      clusters:
+        ceph-pri:
+          config:
+            cephadm: true
+            commands:
+              - "radosgw-admin realm create --rgw-realm india --default"
+              - "radosgw-admin zonegroup create --rgw-realm india --rgw-zonegroup shared --endpoints http://{node_ip:node7}:80 --master --default"
+              - "radosgw-admin zone create --rgw-realm india --rgw-zonegroup shared --rgw-zone primary --endpoints http://{node_ip:node7}:80 --master --default"
+              - "radosgw-admin period update --rgw-realm india --commit"
+              - "radosgw-admin user create --uid=repuser --display_name='Replication user' --access-key 21e86bce636c3aa0 --secret cf764951f1fdde5d --rgw-realm india --system"
+              - "radosgw-admin zone modify --rgw-realm india --rgw-zonegroup shared --rgw-zone primary --access-key 21e86bce636c3aa0 --secret cf764951f1fdde5d"
+              - "radosgw-admin period update --rgw-realm india --commit"
+              - "ceph config set client.rgw.{daemon_id:shared.pri} rgw_realm india"
+              - "ceph config set client.rgw.{daemon_id:shared.pri} rgw_zonegroup shared"
+              - "ceph config set client.rgw.{daemon_id:shared.pri} rgw_zone primary"
+              - "ceph orch restart {service_name:shared.pri}"
+        ceph-sec:
+          config:
+            cephadm: true
+            commands:
+              - "sleep 120"
+              - "radosgw-admin realm pull --rgw-realm india --url http://{node_ip:ceph-pri#node7}:80 --access-key 21e86bce636c3aa0 --secret cf764951f1fdde5d --default"
+              - "radosgw-admin period pull --url http://{node_ip:ceph-pri#node7}:80 --access-key 21e86bce636c3aa0 --secret cf764951f1fdde5d"
+              - "radosgw-admin zone create --rgw-realm india --rgw-zonegroup shared --rgw-zone secondary --endpoints http://{node_ip:node7}:80 --access-key 21e86bce636c3aa0 --secret cf764951f1fdde5d"
+              - "radosgw-admin period update --rgw-realm india --commit"
+              - "ceph config set client.rgw.{daemon_id:shared.sec} rgw_realm india"
+              - "ceph config set client.rgw.{daemon_id:shared.sec} rgw_zonegroup shared"
+              - "ceph config set client.rgw.{daemon_id:shared.sec} rgw_zone secondary"
+              - "ceph orch restart {service_name:shared.sec}"
+      desc: Setting up RGW multisite replication environment
+      module: exec.py
+      name: setup multisite
+      polarion-id: CEPH-10362
+  - test:
+      abort-on-fail: true
+      clusters:
+        ceph-pri:
+          config:
+            cephadm: true
+            commands:
+              - "radosgw-admin sync status"
+              - "ceph -s"
+              - "radosgw-admin realm list"
+              - "radosgw-admin zonegroup list"
+              - "radosgw-admin zone list"
+              - "ceph osd dump"
+      desc: Retrieve the configured environment details
+      module: exec.py
+      name: get shared realm info on primary
+      polarion-id: CEPH-83575227
+  - test:
+      abort-on-fail: true
+      clusters:
+        ceph-sec:
+          config:
+            cephadm: true
+            commands:
+              - "radosgw-admin sync status"
+              - "ceph -s"
+              - "radosgw-admin realm list"
+              - "radosgw-admin zonegroup list"
+              - "radosgw-admin zone list"
+              - "ceph osd dump"
+      desc: Retrieve the configured environment details
+      module: exec.py
+      name: get shared realm info on secondary
+      polarion-id: CEPH-83575227
+
+  # Test work flow
+
+  - test:
+      clusters:
+        ceph-pri:
+          config:
+            set-env: true
+            script-name: user_create.py
+            config-file-name: non_tenanted_user.yaml
+            copy-user-info-to-site: ceph-sec
+      desc: create non-tenanted user
+      module: sanity_rgw_multisite.py
+      name: create non-tenanted user
+      polarion-id: CEPH-83575199
+
+  - test:
+      clusters:
+        ceph-sec:
+          config:
+            config-file-name: test_Mbuckets_with_Nobjects.yaml
+            script-name: test_Mbuckets_with_Nobjects.py
+            verify-io-on-site: [ "ceph-pri" ]
+      desc: Execute M buckets with N objects on secondary cluster
+      polarion-id: CEPH-83575435
+      module: sanity_rgw_multisite.py
+      name: m buckets with n objects
+
+  - test:
+      name: Bilog trimming test on primary
+      desc: test bilog trimming on primary
+      polarion-id: CEPH-83572658 #CEPH-10722, CEPH-10547
+      module: sanity_rgw_multisite.py
+      clusters:
+        ceph-pri:
+          config:
+            script-name: test_bilog_trimming.py
+            config-file-name: test_bilog_trimming.yaml
+
+  - test:
+      name: scrub + bilog trimming with OSD down
+      desc: test radosgw bilog trimming and deep-scrub with OSDs down
+      polarion-id: CEPH-83575437
+      module: test_bilog_trim.py
diff --git a/suites/squid/rgw/tier-2_rgw_rados_multisite_ecpool.yaml b/suites/squid/rgw/tier-2_rgw_rados_multisite_ecpool.yaml
index 9c55048ad5..dfa4ad387c 100644
--- a/suites/squid/rgw/tier-2_rgw_rados_multisite_ecpool.yaml
+++ b/suites/squid/rgw/tier-2_rgw_rados_multisite_ecpool.yaml
@@ -272,3 +272,9 @@ tests:
           config:
             script-name: test_bilog_trimming.py
             config-file-name: test_bilog_trimming.yaml
+
+  - test:
+      name: scrub + bilog trimming with OSD down
+      desc: test radosgw bilog trimming and deep-scrub with OSDs down
+      polarion-id: CEPH-83575437
+      module: test_bilog_trim.py
diff --git a/tests/rados/test_bilog_trim.py b/tests/rados/test_bilog_trim.py
new file mode 100644
index 0000000000..8f7b2aa164
--- /dev/null
+++ b/tests/rados/test_bilog_trim.py
@@ -0,0 +1,142 @@
+"""
+Tier-2 test to ensure PG deep-scrub does not report inconsistent PGs
+when radosgw bilog trimming occurs on PGs where secondary OSD is down
+Customer Bug: 2056818 - [GSS][RADOS][RGW] Scrub errors (omap_digest_mismatch) on
+PGs of RGW metadata pools after upgrade to RHCS 5
+
+Test needs to run as part of rgw/tier-2_rgw_rados_multisite_ecpool.yaml
+as it needs a rgw multisite setup along with data present in RGW pools
+"""
+import datetime
+import random
+import time
+from math import floor
+
+from ceph.ceph_admin import CephAdmin
+from ceph.rados import utils as rados_utils
+from ceph.rados.core_workflows import RadosOrchestrator
+from utility.log import Log
+
+log = Log(__name__)
+
+
+def run(ceph_cluster, **kw):
+    """
+    #CEPH-83575437
+    #BZ-2056818
+    This test is to verify no issues are observed during deep-scrub when rgw bilog
+    trimming occurs with OSD down
+    Steps:
+    Ref:
+    - https://bugzilla.redhat.com/show_bug.cgi?id=2056818#c42
+    - https://bugzilla.redhat.com/show_bug.cgi?id=2056818#c50
+    1. Deploy minimal RGW multisite setup
+    2. Add data to both the sites in S3 buckets and let the minimal client IO running
+    3. Keep running the deep-scrub for index pool PGs
+    4. Set noout flag
+    5. stop the secondary OSD on the primary site(site1)
+    6. run the following command
+       radosgw-admin bilog autotrim
+    7. Once the above command finishes, start the primary OSD that was stopped in step 4
+    8. Retrigger the deep-scrub for eight PGs in index pool
+    """
+    log.info(run.__doc__)
+    config = kw["config"]
+    cephadm = CephAdmin(cluster=ceph_cluster, **config)
+    rados_obj = RadosOrchestrator(node=cephadm)
+
+    try:
+        # set noout flag
+        if not rados_utils.configure_osd_flag(ceph_cluster, action="set", flag="noout"):
+            log.error("Could not set noout flag on the cluster")
+            raise Exception("Could not set noout flag on the cluster")
+
+        # get acting set for the rgw index pool
+        _pool_name = "primary.rgw.buckets.index"
+        acting_set = rados_obj.get_pg_acting_set(pool_name=_pool_name)
+        log.info(f"Acting set for pool {_pool_name}: {acting_set}")
+
+        # secondary osd of 1st PG from rgw index pool
+        second_osd = acting_set[1]
+
+        # get list on active OSDs
+        osd_list = rados_obj.get_osd_list(status="up")
+
+        # bring down 30% of total UP OSDs
+        osd_down = random.choices(osd_list, k=floor(0.3 * len(osd_list)))
+        osd_down.append(second_osd)
+
+        log.info(f"List of OSD to be stopped: {osd_down}")
+
+        # trigger deep-scrub on the rgw index pool
+        rados_obj.run_deep_scrub(pool=_pool_name)
+
+        for osd_id in osd_down:
+            if not rados_obj.change_osd_state(action="stop", target=int(osd_id)):
+                log.error(f"Could not stop OSD.{osd_id}")
+                raise Exception(f"Could not stop OSD.{osd_id}")
+
+        # for a duration of 7 mins, trigger bi-log trimming along with deep-scrub
+        timeout_time = datetime.datetime.now() + datetime.timedelta(seconds=420)
+        while datetime.datetime.now() < timeout_time:
+            cephadm.shell(args=["radosgw-admin bilog autotrim"])
+            rados_obj.run_deep_scrub(pool=_pool_name)
+            time.sleep(30)
+
+        # start the stopped OSDs
+        for osd_id in osd_down:
+            if not rados_obj.change_osd_state(action="start", target=int(osd_id)):
+                log.error(f"Could not start OSD.{osd_id}")
+                raise Exception(f"Could not start OSD.{osd_id}")
+
+        # triggering deep scrub on the rgw index pool now that OSDs have been started
+        rados_obj.run_deep_scrub(pool=_pool_name)
+        pg_id = rados_obj.get_pgid(pool_name=_pool_name)
+        if not rados_obj.start_check_deep_scrub_complete(pg_id=pg_id):
+            log.error(f"PG {pg_id} could not be deep-scrubbed in time")
+            raise
+
+        # not warning should show up in cluster health
+        health_detail, _ = cephadm.shell(args=["ceph health detail"])
+        log.info(f"Cluster health: \n {health_detail}")
+        assert (
+            "inconsistent" not in health_detail
+        ), "'inconsistent' health warning unexpected"
+        assert (
+            "scrub errors" not in health_detail
+        ), "scrub errors reported in cluster health"
+        assert "data damage" not in health_detail, "cluster health reported data damage"
+
+        log.info(
+            "Verification completed, no issues observed during scrubbing and bi-log trimming "
+            "in a cluster with down OSDs"
+        )
+    except Exception as e:
+        log.error(f"Execution failed with exception: {e.__doc__}")
+        log.exception(e)
+        return 1
+    finally:
+        log.info(
+            "\n \n ************** Execution of finally block begins here *************** \n \n"
+        )
+        # unset noout flag
+        if not rados_utils.configure_osd_flag(
+            ceph_cluster, action="unset", flag="noout"
+        ):
+            log.error("Could not unset noout flag on the cluster")
+            return 1
+
+        # start the stopped OSDs
+        if "osd_down" in locals() or "osd_down" in globals():
+            for osd_id in osd_down:
+                if not rados_obj.change_osd_state(action="start", target=int(osd_id)):
+                    log.error(f"Could not start OSD.{osd_id}")
+                    return 1
+
+        # log cluster health
+        rados_obj.log_cluster_health()
+        # check for crashes after test execution
+        if rados_obj.check_crash_status():
+            log.error("Test failed due to crash at the end of test")
+            return 1
+    return 0