arozos/mod/disk/raid/raidutils.go

package raid

import (
	"fmt"
	"os"
)

// Get the next avaible RAID array name
func GetNextAvailableMDDevice() (string, error) {
	for i := 0; i < 100; i++ {
		mdDevice := fmt.Sprintf("/dev/md%d", i)
		if _, err := os.Stat(mdDevice); os.IsNotExist(err) {
			return mdDevice, nil
		}
	}

	return "", fmt.Errorf("no available /dev/mdX devices found")
}