remove unnecessary metrics in 'mc admin info' output (#19020)

Reduce the amount of data transfer on large deployments

cmd/xl-storage-disk-id-check.go

@@ -299,12 +299,19 @@ func (p *xlStorageDiskIDCheck) DiskInfo(ctx context.Context, opts DiskInfoOption
 	defer si(&err)
 
 	if opts.NoOp {
+		if opts.Metrics {
+			info.Metrics = p.getMetrics()
+		}
 		info.Metrics.TotalWrites = p.totalWrites.Load()
 		info.Metrics.TotalDeletes = p.totalDeletes.Load()
 		info.Metrics.TotalWaiting = uint32(p.health.waiting.Load())
 		info.Metrics.TotalErrorsTimeout = p.totalErrsTimeout.Load()
 		info.Metrics.TotalErrorsAvailability = p.totalErrsAvailability.Load()
-		return
+		if p.health.isFaulty() {
+			// if disk is already faulty return faulty for 'mc admin info' output and prometheus alerts.
+			return info, errFaultyDisk
+		}
+		return info, nil
 	}
 
 	defer func() {