Bug 1021102

Summary: Add support for rerror/werror to scsi-generic in rhel6
Product: Red Hat Enterprise Linux 6 Reporter: Sibiao Luo <sluo>
Component: qemu-kvmAssignee: Virtualization Maintenance <virt-maint>
Status: CLOSED DEFERRED QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.5CC: acathrow, bsarathy, chayang, flang, hhuang, juzhang, kwolf, michen, mkenneth, pbonzini, qzhang, sluo, stefanha, virt-maint
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 919380 Environment:
Last Closed: 2013-10-24 23:24:50 UTC Type: Bug
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: 919380    
Bug Blocks:    

Comment 1 Sibiao Luo 2013-10-19 12:22:45 UTC 
host info:
2.6.32-424.el6.x86_64
qemu-kvm-0.12.1.2-2.414.el6.x86_64
seabios-0.6.1.2-28.el6.x86_64

# sg_map
/dev/sg0  /dev/sda
/dev/sg1  /dev/scd0
/dev/sg2  /dev/sdb   <------a iSCSI LUN

e.g:...-drive file=/dev/sg2,if=none,id=drive-data-disk,format=raw,*rerror=stop,werror=stop* -device virtio-scsi-pci,vectors=0,bus=pci.0,addr=0x7,id=scsi0 -device scsi-generic,drive=drive-data-disk,id=data-disk,bus=scsi0.0
qemu-kvm: -device scsi-generic,drive=drive-data-disk,id=data-disk,bus=scsi0.0: Device doesn't support drive option werror
qemu-kvm: -device scsi-generic,drive=drive-data-disk,id=data-disk,bus=scsi0.0: Device 'scsi-generic' could not be initialized
/etc/qemu-ifdown: could not launch network script

Best Regards,
sluo
Comment 2 Paolo Bonzini 2013-10-24 23:24:50 UTC 
scsi-generic is not accessible from libvirt (and thus not supported) in RHEL6. Only scsi-block is.

Please see https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/ch18s06.html