Merge pull request #409 from zaneb/multipath-wwn

jaypipes · web-flow · commit 9e879f1ef442 · 2025-03-13T12:04:42.000Z
Get WWN for multipath block devices
diff --git a/pkg/block/block_linux.go b/pkg/block/block_linux.go
@@ -208,6 +208,10 @@ func diskWWN(paths *linuxpath.Paths, disk string) string {
 	if wwn, ok := info["ID_WWN"]; ok {
 		return wwn
 	}
+	// Device Mapper devices get DM_WWN instead of ID_WWN_WITH_EXTENSION
+	if wwn, ok := info["DM_WWN"]; ok {
+		return wwn
+	}
 	return util.UNKNOWN
 }
 

Original file line number	Diff line number	Diff line change
`@@ -208,6 +208,10 @@ func diskWWN(paths *linuxpath.Paths, disk string) string {`
`208`	`208`	`if wwn, ok := info["ID_WWN"]; ok {`
`209`	`209`	`return wwn`
`210`	`210`	`}`
	`211`	`+ // Device Mapper devices get DM_WWN instead of ID_WWN_WITH_EXTENSION`
	`212`	`+ if wwn, ok := info["DM_WWN"]; ok {`
	`213`	`+ return wwn`
	`214`	`+ }`
`211`	`215`	`return util.UNKNOWN`
`212`	`216`	`}`
`213`	`217`