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Hello list, This issue has me (us) scratching our heads in confusion… I am having issues connecting a virtual machine (in virtual machine manager)
with only one of the iSCSI targets even though the host server seems to have
mapped it successfully. We have: - Ubuntu 10.10 server (host) running QEMU KVM 0.12.5 - a Fujitsu SAN with iSCSI targets - several iSCSI targets on the SAN $ sudo ls -l /dev/mapper lrwxrwxrwx 1 root root 7 2013-10-18 12:04 mpath4 -> ../dm-5 lrwxrwxrwx 1 root root 8 2013-10-18 12:04 mpath4-part1 -> ../dm-14 lrwxrwxrwx 1 root root 8 2013-10-18 12:04 mpath4-part2 -> ../dm-15 lrwxrwxrwx 1 root root 8 2013-10-18 12:04 mpath4-part3 -> ../dm-16 $ sudo multipath -ll mpath4 (3600000e00d00000000013eed00030000) dm-5 FUJITSU ,ETERNUS_DXL
[size=20G][features=1 queue_if_no_path][hwhandler=0] \_ round-robin 0 [prio=140][active] \_ 6:0:0:3 sdg 8:96 [active][ready] \_ 12:0:0:3 sdu 65:64 [active][ready] I can even mount and browse the partitions successfully. $ mount -t ext4 /dev/mapper/mpath4-part1 /mnt/part1 $ mount -t ext4 /dev/mapper/mpath4-part2 /mnt/part2 (part3 is a linux swap so I haven't tried to mount this...) In Virtual Machine Manager: I right click the host and selected 'Details' Select the 'Storage' tab and the 'iscsi-mpath' pool and hit the refresh list button... dm-5 (see output from multipath -ll above) does not appear in the list of
available volumes. If I try to use the CLI to add the disk... $ sudo virsh virsh # attach-disk tmp_marge --source /dev/mapper/mpath4 --target vda error: Failed to attach disk error: Requested operation is not valid: cannot attach device on inactive domain If I then start the virtual computer (without hdd attached) and then run... virsh # attach-disk tmp_marge --source /dev/mapper/mpath4 --target vda Disk attached successfully Yay! I try rebooting the vm and I get Error starting domain: internal error unsupported driver name 'phy' for disk
'/dev/mapper/mpath4' Boo! Also, if I right click the vm in Virtual Machine Manager -> Open. Click the
'i' tool bar button. Select the 'VirtIO Disk 1' I see the following information. Virtual Disk Target device: VirtIO Disk 1 Source path: /dev/mapper/mpath4 Storage size: Unknown Read Only: No Shareable: No Disk Bus: Virtio Serial number: blank Storage format: raw Cache mode: default IO mode: default The 'Storage Size' = Unknown is worrying as this shows correctly for all the
other virtual machines using the other iSCSI targets virsh # attach-disk tmp_marge --source /dev/mapper/mpath4 --target vda --persistent error: Failed to attach disk error: Requested operation is not valid: cannot modify the persistent
configuration of a domain Kind Regards, Ritchie Fraser |
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