Laine Stump <laine@laine.org> wrote on 2021/07/17 00:01:36:
From: Laine Stump <laine@laine.org> To: Libvirt <libvir-list@redhat.com> Cc: Motohiro Kawahito <JL25131@jp.ibm.com>, "Daniel P. Berrangé" <berrange@redhat.com> Date: 2021/07/17 00:01 Subject: [EXTERNAL] Re: Question about skipping virDomainDiskDefAssignAddress
To expand on that, in the case of detaching a disk, you could 1) provide
the target dev in the XML you give to "virsh detach-device", 2) give the
target dev name that you provided in the original XML when you call "virsh detach-disk", or 3) you could specify a custom alias in the original XML ("<alias name='ua-somename'/>" - note that the leading "ua-" is *required* for a custom alias name) and then give that same alias to "virsh detach-device-alias". All three will allow you to reliably select the disk you want, and have the same result.
Thank you very much for the information. I didn't know how to use a custom alias. I'm going to study about it.