Am Montag, 23. August 2021, 13:12:50 CEST schrieb david allan finch:
On 08/23/21 11:11 AM, Andrei Borzenkov wrote:
Before this thread wanders too far in fairy land - there is no "default disk type". "sd" stays for "SCSI disk". Each block device driver enumerates supported devices and assigns devices names that are unique to this driver and all other different types of block devices.
Intresting I kind of remember it meaning 'standard disk' (block) and they used to be /dev/sd1 .. and partitions where sd1a ... and raw devices where rsd1a etc.
That's on netbsd - not on linux. on linux we used to have /dev/hd[a..z] für old IDE/ATA drives, and /dev/ sd[a..z][a..z] for SCSI. Later, the SATA driver adopted the SCSI naming scheme. Today, we have /dev/nvme#n#p# for NVME storage, where the name signifies the controller, the next bit signifies the storage device, and the last bit the partition on it: /dev/nvme0n1p1 would read as "first NVME controller, first storage device, first partition". And seeing how there can be multiple controllers, each with multiple devices, I'd say it is unlikely that we'll ever see a "/dev/sd[a..za..z]' scheme for nvme storage. Cheers MH -- Mathias Homann Mathias.Homann@openSUSE.org OBS: lemmy04 Jabber (XMPP): lemmy@tuxonline.tech IRC: [Lemmy] on freenode and ircnet (bouncer active) telegram: https://telegram.me/lemmy98 keybase: https://keybase.io/lemmy gpg key fingerprint: 8029 2240 F4DD 7776 E7D2 C042 6B8E 029E 13F2 C102