Comment by istjohn

My problem is that that's a pain to type out. I've read that it's necessary (and other's have said it's not), but it'd be more convenient to just do `mirror /dev/sda /dev/sdb` than `mirror /dev/disk/by-id/ata-WDC_WDBNCE5000PNC_21365M802768 /dev/disk/by-id/ata-Samsung_SSD_850_EVO_500GB_S2RANX0HA52854X`