On 02/16/2011 08:37 PM, Phillip Susi wrote: > On 2/16/2011 2:38 AM, Hannes Reinecke wrote: >> The linux scheme since the dawn of time is to >> a) Add the partition number to the device node name >> b) If last letter of the device node name is a number, insert a 'p' >> between device node name and partition number > > Since the dawn of time? Before device mapper it wasn't possible to have > a disk device name ending in a digit. > Unless you happen to have a raid HBA, which has names like cciss/c0d0 or rd/c0d0 and, of course, you can have partitions on md devices, too, which will also give you names like md0p1 >> with the advent of persistent device names (via udev) the partition >> separator (for persistent links only!) is '-part'. >> >> So you have >> >> /dev/sda >> /dev/sda1 >> /dev/disk/by-id/scsi-0WhatAStupidName >> /dev/disk/by-id/scsi-0WhatAStupidName-part1 >> >> persistent device names are longish anyway, so we can as well use >> something readable for partitions. > > That's fine for the symlinks in by-id, but what about the names in > /dev/mapper and /dev/VG? > /dev/mapper contains the names of the device-mapper devices themselves; for those I don't have any preference. kpartx as called from udev is using the '-part' suffix here, too. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
