From: Igor Fedotov <igor.fedotov@croit.io>
Date: Wed, 15 Apr 2026 15:46:56 +0000 (+0300)
Subject: extblkdev/fcm: do not abort on multi-device volume before we discovered it's FCM one
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=990c0af5966eed6feca46c48b8e98299b8089c1a;p=ceph.git

extblkdev/fcm: do not abort on multi-device volume before we discovered it's FCM one

https://tracker.ceph.com/issues/75819

Signed-off-by: Igor Fedotov <igor.fedotov@croit.io>
---

diff --git a/src/extblkdev/fcm/ExtBlkDevPluginFcm.cc b/src/extblkdev/fcm/ExtBlkDevPluginFcm.cc
index dbf77c8e1660..abcc18249c89 100644
--- a/src/extblkdev/fcm/ExtBlkDevPluginFcm.cc
+++ b/src/extblkdev/fcm/ExtBlkDevPluginFcm.cc
@@ -307,9 +307,6 @@ public:
     // determine device name for underlying hardware
     std::set<std::string> raw_devices;
     get_raw_devices(logdevname, &raw_devices);
-    if (raw_devices.size() > 1) {
-      ceph_abort("Device " + logdevname_a + " consist of "+ raw_devices.size() + " devices: " + raw_devices);
-    }
     for (auto& d : raw_devices) {
       std::string devpath = "/sys/block/" + d + "/device/";
       uint32_t vendor;
@@ -319,6 +316,13 @@ public:
                  << " vendor=" << vendor << " at " << devpath << dendl;
         // get vendor and device id of underlying hardware, compare with FCM ids
         if (vendor == 0x1014 && device == 0x0634) {
+          if (raw_devices.size() > 1) {
+            derr << __func__
+                 << "Device " << logdevname_a << " consist of " << raw_devices.size()
+                 << " devices: " << raw_devices
+                 << dendl;
+            ceph_abort("Multi-device volumes are unsupported for FCM plugin");
+          }
           fcm_devices.push_back(fcm_dev(d));
           dout(1) << __func__ << " Found FCM vendor/device id on " << d << dendl;
         }