diff --git a/sbin/hastd/primary.c b/sbin/hastd/primary.c
index 879124f3dbf9..cf597368401a 100644
--- a/sbin/hastd/primary.c
+++ b/sbin/hastd/primary.c
@@ -1135,6 +1135,16 @@ local_send_thread(void *arg)
 				/*
 				 * If READ failed, try to read from remote node.
 				 */
+				if (ret < 0) {
+					reqlog(LOG_WARNING, 0, ggio,
+					    "Local request failed (%s), trying remote node. ",
+					    strerror(errno));
+				} else if (ret != ggio->gctl_length) {
+					reqlog(LOG_WARNING, 0, ggio,
+					    "Local request failed (%zd != %jd), trying remote node. ",
+					    (intmax_t)ret,
+					    (intmax_t)ggio->gctl_length);
+				}
 				QUEUE_INSERT1(hio, send, rncomp);
 				continue;
 			}
@@ -1143,28 +1153,43 @@ local_send_thread(void *arg)
 			ret = pwrite(res->hr_localfd, ggio->gctl_data,
 			    ggio->gctl_length,
 			    ggio->gctl_offset + res->hr_localoff);
-			if (ret < 0)
+			if (ret < 0) {
 				hio->hio_errors[ncomp] = errno;
-			else if (ret != ggio->gctl_length)
+				reqlog(LOG_WARNING, 0, ggio,
+				    "Local request failed (%s): ",
+				    strerror(errno));
+			} else if (ret != ggio->gctl_length) {
 				hio->hio_errors[ncomp] = EIO;
-			else
+				reqlog(LOG_WARNING, 0, ggio,
+				    "Local request failed (%zd != %jd): ",
+				    (intmax_t)ret, (intmax_t)ggio->gctl_length);
+			} else {
 				hio->hio_errors[ncomp] = 0;
+			}
 			break;
 		case BIO_DELETE:
 			ret = g_delete(res->hr_localfd,
 			    ggio->gctl_offset + res->hr_localoff,
 			    ggio->gctl_length);
-			if (ret < 0)
+			if (ret < 0) {
 				hio->hio_errors[ncomp] = errno;
-			else
+				reqlog(LOG_WARNING, 0, ggio,
+				    "Local request failed (%s): ",
+				    strerror(errno));
+			} else {
 				hio->hio_errors[ncomp] = 0;
+			}
 			break;
 		case BIO_FLUSH:
 			ret = g_flush(res->hr_localfd);
-			if (ret < 0)
+			if (ret < 0) {
 				hio->hio_errors[ncomp] = errno;
-			else
+				reqlog(LOG_WARNING, 0, ggio,
+				    "Local request failed (%s): ",
+				    strerror(errno));
+			} else {
 				hio->hio_errors[ncomp] = 0;
+			}
 			break;
 		}
 		if (refcount_release(&hio->hio_countdown)) {
@@ -1446,6 +1471,8 @@ remote_recv_thread(void *arg)
 		if (error != 0) {
 			/* Request failed on remote side. */
 			hio->hio_errors[ncomp] = error;
+			reqlog(LOG_WARNING, 0, &hio->hio_ggio,
+			    "Remote request failed (%s): ", strerror(error));
 			nv_free(nv);
 			goto done_queue;
 		}