
Hi, I'm writing cause I working on hosted-engine deploy over fiber channel. If possible, I'd like to try it for developing purposes in a nested environment. So I thought it would be possible to simulate a SAN with LIO and a vn2vn FCoE connection using a couple of VirtIO devices. I had some troubles using fcoeadm over VirtIO but than I found your patch about libhbalinux and libudev. I applied it and it works or at least it seams to. Here I tracked what I did: http://www.ovirt.org/Features/Self_Hosted_Engine_FC_Support Now the problem is that VDSM sees the FCoE device but it reports as failed: 'pathstatus': [{'lun': '0', 'physdev': 'sda', 'state': 'failed', 'type': 'FCP'}], and I'm not sure if it's really an issue with VDSM or if it's something with my FCoE setup. Did someone ever used VDSM with FCoE? thanks, Simone

Il 15/12/2014 16:52, Simone Tiraboschi ha scritto:
Hi, I'm writing cause I working on hosted-engine deploy over fiber channel. If possible, I'd like to try it for developing purposes in a nested environment. So I thought it would be possible to simulate a SAN with LIO and a vn2vn FCoE connection using a couple of VirtIO devices.
I had some troubles using fcoeadm over VirtIO but than I found your patch about libhbalinux and libudev. I applied it and it works or at least it seams to. Here I tracked what I did: http://www.ovirt.org/Features/Self_Hosted_Engine_FC_Support
Now the problem is that VDSM sees the FCoE device but it reports as failed:
'pathstatus': [{'lun': '0', 'physdev': 'sda', 'state': 'failed', 'type': 'FCP'}],
and I'm not sure if it's really an issue with VDSM or if it's something with my FCoE setup.
Did someone ever used VDSM with FCoE?
Tal? Allon? Nir?
thanks, Simone _______________________________________________ Devel mailing list Devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/devel
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: devel@ovirt.org, "Tal Nisan" <tnisan@redhat.com>, "Allon Mureinik" <amureini@redhat.com>, "Nir Soffer" <nsoffer@redhat.com> Cc: "Simone Tiraboschi" <stirabos@redhat.com> Sent: Tuesday, December 16, 2014 9:56:58 AM Subject: Re: [ovirt-devel] VDSM, FCoE and VirtIO
Il 15/12/2014 16:52, Simone Tiraboschi ha scritto:
Hi, I'm writing cause I working on hosted-engine deploy over fiber channel. If possible, I'd like to try it for developing purposes in a nested environment. So I thought it would be possible to simulate a SAN with LIO and a vn2vn FCoE connection using a couple of VirtIO devices.
I had some troubles using fcoeadm over VirtIO but than I found your patch about libhbalinux and libudev. I applied it and it works or at least it seams to. Here I tracked what I did: http://www.ovirt.org/Features/Self_Hosted_Engine_FC_Support
Now the problem is that VDSM sees the FCoE device but it reports as failed:
'pathstatus': [{'lun': '0', 'physdev': 'sda', 'state': 'failed', 'type': 'FCP'}],
and I'm not sure if it's really an issue with VDSM or if it's something with my FCoE setup.
Did someone ever used VDSM with FCoE?
Tal? Allon? Nir?
Just to add some info, it seams to correctly work directly using the device (fdisk, mkfs, mount) while it doesn't seam to work with VDSM reporting some issue with multipathd on that device. Dec 15 18:16:14 f20t3 multipathd: sda: remove path (uevent) Dec 15 18:16:14 f20t3 multipathd: 360014051d02b146ac574f2fabf6b1e38 Last path deleted, disabling queueing Dec 15 18:16:14 f20t3 multipathd: 360014051d02b146ac574f2fabf6b1e38: devmap removed Dec 15 18:16:14 f20t3 multipathd: 360014051d02b146ac574f2fabf6b1e38: stop event checker thread (139885130282752) Dec 15 18:16:14 f20t3 multipathd: 360014051d02b146ac574f2fabf6b1e38: removed map after removing all paths Dec 15 18:16:14 f20t3 multipathd: dm-3: remove map (uevent) Dec 15 18:16:14 f20t3 multipathd: dm-3: devmap not registered, can't remove Dec 15 18:16:14 f20t3 multipathd: dm-3: remove map (uevent) Dec 15 18:16:14 f20t3 multipathd: dm-2: remove map (uevent) Dec 15 18:16:14 f20t3 multipathd: dm-2: devmap not registered, can't remove Dec 15 18:16:14 f20t3 multipathd: dm-2: remove map (uevent) I'm not sure if it's really a VDSM issue of just something wrong in my setup.
thanks, Simone _______________________________________________ Devel mailing list Devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/devel
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo@redhat.com> To: devel@ovirt.org, "Tal Nisan" <tnisan@redhat.com>, "Allon Mureinik" <amureini@redhat.com>, "Nir Soffer" <nsoffer@redhat.com> Cc: "Simone Tiraboschi" <stirabos@redhat.com> Sent: Tuesday, December 16, 2014 10:56:58 AM Subject: Re: [ovirt-devel] VDSM, FCoE and VirtIO
Il 15/12/2014 16:52, Simone Tiraboschi ha scritto:
Hi, I'm writing cause I working on hosted-engine deploy over fiber channel. If possible, I'd like to try it for developing purposes in a nested environment. So I thought it would be possible to simulate a SAN with LIO and a vn2vn FCoE connection using a couple of VirtIO devices.
I had some troubles using fcoeadm over VirtIO but than I found your patch about libhbalinux and libudev. I applied it and it works or at least it seams to. Here I tracked what I did: http://www.ovirt.org/Features/Self_Hosted_Engine_FC_Support
Now the problem is that VDSM sees the FCoE device but it reports as failed:
'pathstatus': [{'lun': '0', 'physdev': 'sda', 'state': 'failed', 'type': 'FCP'}],
and I'm not sure if it's really an issue with VDSM or if it's something with my FCoE setup.
Did someone ever used VDSM with FCoE?
Tal? Allon? Nir?
I never tried to use this setup, and I don't know if we support this. Maybe Federico can help with this? Nir
participants (3)
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Nir Soffer
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Sandro Bonazzola
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Simone Tiraboschi