Bug 614777
| Summary: | virsh detach-device doesn't support scsi device hot unplugged | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Alex Jia <ajia> |
| Component: | libvirt | Assignee: | Jiri Denemark <jdenemar> |
| Status: | CLOSED CANTFIX | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.0 | CC: | dallan, dyuan, eblake, jyang, kolsur, llim, ltroan, rdassen, snagar, xen-maint, yimwang |
| Target Milestone: | rc | Keywords: | FutureFeature, Reopened, Triaged |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-04-17 11:23:44 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 698812, 643456, 655920, 659725 | ||
This issue has been proposed when we are only considering blocker issues in the current Red Hat Enterprise Linux release. It has been denied for the current Red Hat Enterprise Linux release. ** If you would still like this issue considered for the current release, ask your support representative to file as a blocker on your behalf. Otherwise ask that it be considered for the next Red Hat Enterprise Linux release. ** AFAIK, SCSI is not supported in RHEL-6 qemu anyway, so you shouldn't be able to attach (hot or cold) nor detach SCSI disks at all. Moreover, this has been fixed upstream and taken to 6.1 with the rebase. I'm closing this as NOTABUG since it's currently not supported by qemu and thus cannot be tested even though libvirt is fixed. Changing closed reason to CANTFIX. I am opening this one, just to understand below point. If SCSI is not supported as one of the controller types, we have a problem with setting timeout, which is predominantly the way we control I/O failures in the due to any faults on the storage/network. Ex: /sys/block/devices/sda/<timeout> Is there a way or IDE disks on par with the above? -Suresh Kolsur Random bugs closed 2 years ago are not the right place to ask support questions. Please, contact Red Hat Support. |
Description of problem: virsh detach-device operation can hotplug device to guest, including bus=scsi and virtio, but it doesn't support scsi device hot-unplug, virio device is supported. Version-Release number of selected component (if applicable): # lsb_release -a LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch Distributor ID: RedHatEnterprise Description: Red Hat Enterprise Linux release 6.0 Beta (Santiago) Release: 6.0 Codename: Santiago # uname -a Linux dhcp-66-70-62.nay.redhat.com 2.6.32-37.el6.x86_64 #1 SMP Sun Jun 20 19:29:35 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux # rpm -q libvirt libvirt-0.8.1-15.el6.x86_64 # rpm -q qemu-kvm qemu-kvm-0.12.1.2-2.95.el6.x86_64 How reproducible: always Steps to Reproduce: 1.create raw or qcow2 type disk image 2.edit disk xml file 3.virsh attach-device guestname disk.xml 4.check attachment result 5.virsh detach-device guestname disk.xml Actual results: # virsh detach-device rhel6 kvm-disk1.xml error: Failed to detach device from kvm-disk1.xml error: this function is not supported by the connection driver: This type of device cannot be hot unplugged Expected results: support scsi device hot-unplug Additional info: # cat kvm-disk1.xml <disk type='file' device='disk'> <source file='/var/lib/libvirt/images/foo.${type}'/> <target dev='sdb' bus='scsi'/> </disk> # cat kvm-disk2.xml <disk type='file' device='disk'> <source file='/var/lib/libvirt/images/foo.${type}'/> <target dev='vdc' bus='virtio'/> </disk> Note: the type includes raw and qcow2 # virsh attach-device rhel6 kvm-disk1.xml Device attached successfully # virsh detach-device rhel6 kvm-disk1.xml error: Failed to detach device from kvm-disk1.xml error: this function is not supported by the connection driver: This type of device cannot be hot unplugged # virsh attach-device rhel6 kvm-disk2.xml Device attached successfully # virsh detach-device rhel6-x86_64 kvm-disk2.xml Device detached successfully