-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dave Allan wrote: > On 03/19/2010 04:44 AM, Nicolas Greneche wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Dave Allan wrote: >>> On 03/17/2010 06:38 AM, Nicolas Greneche wrote: >>>> -----BEGIN PGP SIGNED MESSAGE----- >>>> Hash: SHA1 >>>> >>>> Hi, >>>> >>>> Former user of Xen and newbie in kvm/qemu/libvirt stuff, I give it a >>>> try >>>> on my network ;-) >>>> >>>> I need to run a VM with iSCSI target attached. >>>> >>>> I did it this way : >>>> >>>> 1) Creation of iscsi pool (equa.xml) : >>>> >>>> <pool type="iscsi"> >>>> <name>equalog</name> >>>> <source> >>>> <host name="10.10.0.1"/> >>>> <device >>>> path="iqn.2001-05.com.equallogic:0-8a0906-4992c7f05-39c000000114b8fc-vglog"/> >>>> >>>> >>>> </source> >>>> <target> >>>> <path>/dev/disk/by-path</path> >>>> </target> >>>> </pool> >>>> >>>> This pool start smoothly (when open-iscsi started), no problems. An >>>> entry is created in /dev/disk/by-path/ related to iscsi target. >>>> >>>> 2) I flagged it autostart : >>>> >>>> root@sandi:~# virsh pool-autostart equalog >>>> Pool equalog marked as autostarted >>>> >>>> root@sandi:~# virsh pool-list >>>> Name State Autostart >>>> - ----------------------------------------- >>>> equalog active yes >>>> >>>> 3) In my guest VM, I have following section : >>>> >>>> <disk type='block' device='disk'> >>>> <driver name='qemu'/> >>>> <source >>>> dev='/dev/disk/by-path/ip-10.10.0.1:3260-iscsi-iqn.2001-05.com.equallogic:0-8a0906-4992c7f05-39c000000114b8fc-vglog-lun-0'/> >>>> >>>> >>>> <target dev='vdc' bus='virtio'/> >>>> <alias name='virtio2'/> >>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' >>>> function='0x0'/> >>>> </disk> >>>> >>>> When I start VM, iscsi target is availaible. >>>> >>>> The snag is that when I reboot the host, the pool is not automatically >>>> started (making it impossible to autostart VM relying on this iscsi >>>> volume). >>>> >>>> I verified that open-iscsi is started first. Startup script is >>>> localised >>>> in /etc/rcS.d which is prior to /etc/rc2.d (my default runlevel). >>>> Libvirtd is started in rc2.d and not mentionned in rcS.d. >>>> >>>> My questions are : >>>> - - Is this the correct way to attach iscsi volume to a guest ? >>>> - - Did I missed something to have iscsi pool autostart working at boot >>>> time ? >>> >>> You're doing everything right, so it's odd that the pool isn't >>> autostarting. Does the pool autostart properly if you restart libvirtd >>> when the system is fully booted? >>> >>> Dave >>> >>> >> >> Hi Dave, >> >> It's a very odd problem. Making network debugging with tcpdump makes me >> see that my network stack doesn't receive "arp reply" related to my >> target. >> >> If I add an ARP entry by hand in cache or a sleep just before libvirtd >> start function in startup script it works like a charm. >> >> Very odd, I asked debian package maintainers for help : >> >> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574358 > > Are the appropriate network interfaces started/configured? > > Yes, I ran an ifconfig, route, iptables to see if network interfaces are well started and if there are no iptable rules loaded. All seems to be OK. I launched all those commands before start-stop-daemon of libvirtd. - -- Nicolas Greneche - RSSI et Sysadmin Centre de Ressources Informatiques (CRI) Doctorant au sein du projet SDS - www.sds-project.fr Mail : nicolas.greneche_(at)_univ-orleans.fr GPG : http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x5FEBD0EF Universite d'Orleans Web : http://blog.garnett.fr Batiment 3IA - 2e etage Tel : 02 38 49 25 26 6 rue Leonard de Vinci BP 6102 45061 ORLEANS Cedex 2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkujioMACgkQTx/Y+1/r0O9c4wCfZoHhroHtjMlQSSL1PwNkAggl O1QAnicqnVlhKQ9yabNaRfEltuphzX7T =wxbF -----END PGP SIGNATURE-----
