Re: [bug report]scsi: drive letter drift problem
From: Stefan Hajnoczi
Date: Mon Jul 12 2021 - 05:34:27 EST
On Mon, Jul 12, 2021 at 12:47:05PM +0800, Wenchao Hao wrote:
> We deploy two SCSI disk in one SCSI host(virtio-scsi bus) for one machine,
> whose ids are [0:0:0:0] and [0:0:1:0].
> Mostly, the device letter are assigned as following after reboot:
> [0:0:0:0] --> sda
> [0:0:1:0] --> sdb
> While in rare cases, the device letter shown as following:
> [0:0:0:0] --> sdb
> [0:0:1:0] --> sda
> Could we guarantee "sda" is assigned to [0:0:0:0] and "sdb" is assigned to
> [0:0:1:0] or not?
> If we can, then how?
Is there a stable ID that you can use in /dev/disk/by-*?
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