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// SPDX-License-Identifier: GPL-3.0-or-later
package storcli
import (
"encoding/json"
"errors"
"fmt"
"strconv"
"strings"
)
type drivesInfoResponse struct {
Controllers []struct {
CommandStatus struct {
Controller int `json:"Controller"`
Status string `json:"Status"`
} `json:"Command Status"`
ResponseData map[string]json.RawMessage `json:"Response Data"`
} `json:"Controllers"`
}
type (
driveInfo struct {
EIDSlt string `json:"EID:Slt"`
//DID int `json:"DID"`
//State string `json:"State"`
//DG int `json:"DG"` // FIX: can be integer or "-"
//Size string `json:"Size"`
//Intf string `json:"Intf"`
Med string `json:"Med"`
//SED string `json:"SED"`
//PI string `json:"PI"`
//SeSz string `json:"SeSz"`
//Model string `json:"Model"`
//Sp string `json:"Sp"`
//Type string `json:"Type"`
}
driveState struct {
MediaErrorCount storNumber `json:"Media Error Count"`
OtherErrorCount storNumber `json:"Other Error Count"`
DriveTemperature string `json:"Drive Temperature"`
PredictiveFailureCount storNumber `json:"Predictive Failure Count"`
SmartAlertFlagged string `json:"S.M.A.R.T alert flagged by drive"`
}
driveAttrs struct {
WWN string `json:"WWN"`
DeviceSpeed string `json:"Device Speed"`
LinkSpeed string `json:"Link Speed"`
}
)
type storNumber string // some int values can be 'N/A'
func (n *storNumber) UnmarshalJSON(b []byte) error { *n = storNumber(b); return nil }
func (s *StorCli) collectMegaRaidDrives(mx map[string]int64, resp *drivesInfoResponse) error {
if resp == nil {
return nil
}
for _, cntrl := range resp.Controllers {
var ids []string
for k := range cntrl.ResponseData {
if !strings.HasSuffix(k, "Detailed Information") {
continue
}
parts := strings.Fields(k) // Drive /c0/e252/s0 - Detailed Information
if len(parts) < 2 {
continue
}
id := parts[1]
if strings.IndexByte(id, '/') == -1 {
continue
}
ids = append(ids, id)
}
cntrlIdx := cntrl.CommandStatus.Controller
for _, id := range ids {
info, err := getDriveInfo(cntrl.ResponseData, id)
if err != nil {
return err
}
data, err := getDriveDetailedInfo(cntrl.ResponseData, id)
if err != nil {
return err
}
state, err := getDriveState(data, id)
if err != nil {
return err
}
attrs, err := getDriveAttrs(data, id)
if err != nil {
return err
}
if attrs.WWN == "" {
continue
}
if !s.drives[attrs.WWN] {
s.drives[attrs.WWN] = true
s.addPhysDriveCharts(cntrlIdx, info, state, attrs)
}
px := fmt.Sprintf("phys_drive_%s_cntrl_%d_", attrs.WWN, cntrlIdx)
if v, ok := parseInt(string(state.MediaErrorCount)); ok {
mx[px+"media_error_count"] = v
}
if v, ok := parseInt(string(state.OtherErrorCount)); ok {
mx[px+"other_error_count"] = v
}
if v, ok := parseInt(string(state.PredictiveFailureCount)); ok {
mx[px+"predictive_failure_count"] = v
}
if v, ok := parseInt(getTemperature(state.DriveTemperature)); ok {
mx[px+"temperature"] = v
}
for _, st := range []string{"active", "inactive"} {
mx[px+"smart_alert_status_"+st] = 0
}
if state.SmartAlertFlagged == "Yes" {
mx[px+"smart_alert_status_active"] = 1
} else {
mx[px+"smart_alert_status_inactive"] = 1
}
}
}
return nil
}
func (s *StorCli) queryDrivesInfo() (*drivesInfoResponse, error) {
bs, err := s.exec.drivesInfo()
if err != nil {
return nil, err
}
if len(bs) == 0 {
return nil, errors.New("empty response")
}
var resp drivesInfoResponse
if err := json.Unmarshal(bs, &resp); err != nil {
return nil, err
}
if len(resp.Controllers) == 0 {
return nil, errors.New("no controllers found")
}
if st := resp.Controllers[0].CommandStatus.Status; st != "Success" {
return nil, fmt.Errorf("command status error: %s", st)
}
return &resp, nil
}
func getDriveInfo(respData map[string]json.RawMessage, id string) (*driveInfo, error) {
k := fmt.Sprintf("Drive %s", id)
raw, ok := respData[k]
if !ok {
return nil, fmt.Errorf("drive info not found for '%s'", id)
}
var drive []driveInfo
if err := json.Unmarshal(raw, &drive); err != nil {
return nil, err
}
if len(drive) == 0 {
return nil, fmt.Errorf("drive info not found for '%s'", id)
}
return &drive[0], nil
}
func getDriveDetailedInfo(respData map[string]json.RawMessage, id string) (map[string]json.RawMessage, error) {
k := fmt.Sprintf("Drive %s - Detailed Information", id)
raw, ok := respData[k]
if !ok {
return nil, fmt.Errorf("drive detailed info not found for '%s'", id)
}
var info map[string]json.RawMessage
if err := json.Unmarshal(raw, &info); err != nil {
return nil, err
}
return info, nil
}
func getDriveState(driveDetailedInfo map[string]json.RawMessage, id string) (*driveState, error) {
k := fmt.Sprintf("Drive %s State", id)
raw, ok := driveDetailedInfo[k]
if !ok {
return nil, fmt.Errorf("drive detailed info state not found for '%s'", id)
}
var state driveState
if err := json.Unmarshal(raw, &state); err != nil {
return nil, err
}
return &state, nil
}
func getDriveAttrs(driveDetailedInfo map[string]json.RawMessage, id string) (*driveAttrs, error) {
k := fmt.Sprintf("Drive %s Device attributes", id)
raw, ok := driveDetailedInfo[k]
if !ok {
return nil, fmt.Errorf("drive detailed info state not found for '%s'", id)
}
var state driveAttrs
if err := json.Unmarshal(raw, &state); err != nil {
return nil, err
}
return &state, nil
}
func getTemperature(temp string) string {
// ' 28C (82.40 F)' (drive) or '33C' (bbu)
i := strings.IndexByte(temp, 'C')
if i == -1 {
return ""
}
return strings.TrimSpace(temp[:i])
}
func parseInt(s string) (int64, bool) {
i, err := strconv.ParseInt(s, 10, 64)
return i, err == nil
}
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