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Bug
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Resolution: Unresolved
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Major
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None
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rhel-10.0.beta
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None
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No
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None
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rhel-sst-storage-io
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ssg_filesystems_storage_and_HA
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3
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False
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None
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None
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None
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None
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None
Description of problem:
blockcopy to iscsi disk on the host fail at the first time
Version-Release number of selected component (if applicable):
iscsi-initiator-utils-6.2.1.9-21.gita65a472.el10.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Prepare a iscsi server on one host with script as below:
# cat iscisi_server.sh dd if=/dev/zero of=/var/tmp/emulated-iscsi count=3072 bs=1024K targetcli /backstores/fileio/ create device.emulated-iscsi /var/tmp/emulated-iscsi targetcli /iscsi/ create iqn.2021-04.com.virtemulated:emulated-iscsi.target targetcli /iscsi/iqn.2021-04.com.virtemulated:emulated-iscsi.target/tpg1/luns/ create /backstores/fileio/device.emulated-iscsi targetcli /iscsi/iqn.2021-04.com.virtemulated:emulated-iscsi.target/tpg1/ set attribute authentication=0 demo_mode_write_protect=0 generate_node_acls=1 cache_dynamic_acls=1 targetcli / saveconfig
On the rhel 10 host with iscsi-initiator-utils-6.2.1.9-21.gita65a472.el10.x86_64, try to login the iscsi target:
# iscsiadm -m discovery -t sendtargets -p ${IP_of_iscsi_server}
${IP_of_iscsi_server}:3260,1 iqn.2021-04.com.virtemulated:emulated-iscsi.target
# iscsiadm --mode node --login --targetname iqn.2021-04.com.virtemulated:emulated-iscsi.target ${IP_of_iscsi_server}
Logging in to [iface: default, target: iqn.2021-04.com.virtemulated:emulated-iscsi.target, portal: ${IP_of_iscsi_server},3260]Login to [iface: default, target: iqn.2021-04.com.virtemulated:emulated-iscsi.target, portal: ${IP_of_iscsi_server},3260] successful.
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
......
sdb 8:16 0 3G 0 disk
2. On the rhel 10 host, prepare a vm with disks as below:
# qemu-img create /var/lib/libvirt/images/test.raw 3G Formatting '/var/lib/libvirt/images/test.raw', fmt=raw size=3221225472 # virsh dumpxml rhel --xpath //disk <disk type="file" device="disk"> <driver name="qemu" type="qcow2"/> <source file="/var/lib/libvirt/images/RHEL-10.0-20240907.1-x86_64-ovmf.qcow2.1"/> <target dev="sda" bus="sata"/> <address type="drive" controller="0" bus="0" target="0" unit="0"/> </disk> <disk type="file" device="disk"> <driver name="qemu" type="raw"/> <source file="/var/lib/libvirt/images/test.raw"/> <backingStore/> <target dev="sdb" bus="scsi"/> <address type="drive" controller="0" bus="0" target="0" unit="1"/> </disk> # virsh start rhel Domain 'rhel' started
3. Prepare a xml as below, and try blockcopy to copy the disk to the iscsi disk on the host:
# cat disk.xml <disk type="block" device="disk"> <driver name="qemu" type="raw"/> <source dev="/dev/sdb"> </source> <target dev="sdb" bus="scsi"/> </disk> # virsh blockcopy rhel sdb --xml disk.xml --finish --transient-job --reuse-external --verbose --wait Block Copy: [ 1.04 %] Copy failed
But the 2nd time to execute the same cmd will pass
# virsh blockcopy rhel sdb --xml disk.xml --finish --transient-job --reuse-external --verbose --wait
Block Copy: [100.00 %]
Successfully copied
Actual results:
blockcopy to iscsi disk on the host fail at the first time
Expected results:
blockcopy should succeed
Additional info:
1) with another backend scsi_debug, the operation will pass
# modprobe scsi_debug dev_size_mb=3072
2) on another rhel9 host with iscsi-initiator-utils-6.2.1.9-1.gita65a472.el9.x86_64, with the same steps, the operation will pass
