support linear type in mdstat

Signed-off-by: Singee <[email protected]>
prometheus · Apr 13, 2023 · cb1a7ac · cb1a7ac
1 parent 99dceaf
commit cb1a7ac
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/mdstat.go b/mdstat.go
@@ -98,9 +98,9 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
 		state := deviceFields[2]  // active or inactive
 
 		mdType := ""
-		if len(deviceFields) > 3 && strings.HasPrefix(deviceFields[3], "raid") {
+		if len(deviceFields) > 3 && isRaidType(deviceFields[3]) {
 			mdType = deviceFields[3] // raid1, raid5, etc.
-		} else if len(deviceFields) > 4 && strings.HasPrefix(deviceFields[4], "raid") {
+		} else if len(deviceFields) > 4 && isRaidType(deviceFields[4]) {
 			mdType = deviceFields[4]
 		}
 
@@ -175,6 +175,10 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
 	return mdStats, nil
 }
 
+func isRaidType(mdType string) bool {
+	return strings.HasPrefix(mdType, "raid") || mdType == "linear"
+}
+
 func evalStatusLine(deviceLine, statusLine string) (active, total, down, size int64, err error) {
 	statusFields := strings.Fields(statusLine)
 	if len(statusFields) < 1 {

diff --git a/mdstat_test.go b/mdstat_test.go
@@ -36,7 +36,7 @@ func TestFS_MDStat(t *testing.T) {
 		"md10":  {Name: "md10", Type: "raid0", ActivityState: "active", DisksActive: 2, DisksTotal: 2, DisksFailed: 0, DisksDown: 0, DisksSpare: 0, BlocksTotal: 314159265, BlocksSynced: 314159265, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sda1", "sdb1"}},
 		"md11":  {Name: "md11", Type: "raid1", ActivityState: "resyncing", DisksActive: 2, DisksTotal: 2, DisksFailed: 1, DisksDown: 0, DisksSpare: 2, BlocksTotal: 4190208, BlocksSynced: 0, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sdb2", "sdc2", "sdc3", "hda", "ssdc2"}},
 		"md12":  {Name: "md12", Type: "raid0", ActivityState: "active", DisksActive: 2, DisksTotal: 2, DisksSpare: 0, DisksDown: 0, DisksFailed: 0, BlocksTotal: 3886394368, BlocksSynced: 3886394368, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sdc2", "sdd2"}},
-		"md120": {Name: "md120", Type: "", ActivityState: "active", DisksActive: 2, DisksTotal: 2, DisksFailed: 0, DisksDown: 0, DisksSpare: 0, BlocksTotal: 2095104, BlocksSynced: 2095104, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sda1", "sdb1"}},
+		"md120": {Name: "md120", Type: "linear", ActivityState: "active", DisksActive: 2, DisksTotal: 2, DisksFailed: 0, DisksDown: 0, DisksSpare: 0, BlocksTotal: 2095104, BlocksSynced: 2095104, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sda1", "sdb1"}},
 		"md126": {Name: "md126", Type: "raid0", ActivityState: "active", DisksActive: 2, DisksTotal: 2, DisksFailed: 0, DisksDown: 0, DisksSpare: 0, BlocksTotal: 1855870976, BlocksSynced: 1855870976, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sdb", "sdc"}},
 		"md219": {Name: "md219", Type: "", ActivityState: "inactive", DisksTotal: 0, DisksFailed: 0, DisksActive: 0, DisksDown: 0, DisksSpare: 3, BlocksTotal: 7932, BlocksSynced: 7932, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"sdc", "sda"}},
 		"md00":  {Name: "md00", Type: "raid0", ActivityState: "active", DisksActive: 1, DisksTotal: 1, DisksFailed: 0, DisksDown: 0, DisksSpare: 0, BlocksTotal: 4186624, BlocksSynced: 4186624, BlocksSyncedPct: 0, BlocksSyncedFinishTime: 0, BlocksSyncedSpeed: 0, Devices: []string{"xvdb"}},