Hi, everyone. You might’ve noticed a few emails from me in the last couple of
weeks that chronicle my struggle to get an HA iSCSI Target configured in AWS.
After stumbling through this setup (and struggling all the way), I think I’ve
finally gotten to the point where I’m ready to create the LUN’s for this
cluster. Unfortunately, I’ve come to realize that the
ocf:heartbeat:iSCSILogicalUnit resource agent does not seem to completely
support the iSCSI lio-t (lio using targetcli) specification. I was hoping that
I could get some help in closing this final loop. Essentially, the resource
agent (excerpt below) seems only to support the configuration and management of
block backstores. Other backstores are not accounted for including most
critically (in my use case) fileio:
lio-t)
# For lio, we first have to create a target device, then
# add it to the Target Portal Group as an LU.
ocf_run targetcli /backstores/block create
name=${OCF_RESOURCE_INSTANCE} dev=${OCF_RESKEY_path} || exit $OCF_ERR_GENERIC
if [ -n "${OCF_RESKEY_scsi_sn}" ]; then
echo ${OCF_RESKEY_scsi_sn} >
/sys/kernel/config/target/core/iblock_${OCF_RESKEY_lio_iblock}/${OCF_RESOURCE_INSTANCE}/wwn/vpd_unit_serial
fi
ocf_run targetcli /iscsi/${OCF_RESKEY_target_iqn}/tpg1/luns create
/backstores/block/${OCF_RESOURCE_INSTANCE} ${OCF_RESKEY_lun} || exit
$OCF_ERR_GENERIC
if [ -n "${OCF_RESKEY_allowed_initiators}" ]; then
for initiator in ${OCF_RESKEY_allowed_initiators}; do
ocf_run targetcli
/iscsi/${OCF_RESKEY_target_iqn}/tpg1/acls create ${initiator}
add_mapped_luns=False || exit $OCF_ERR_GENERIC
ocf_run targetcli
/iscsi/${OCF_RESKEY_target_iqn}/tpg1/acls/${initiator} create ${OCF_RESKEY_lun}
${OCF_RESKEY_lun} || exit $OCF_ERR_GENERIC
done
fi
;;
My assumption is that I can hack out the script bits necessary to support the
fileio backstore, but I’m curious if that’s something that someone has already
done somewhere. Thanks in advance! I really appreciate all the assistance I’ve
gotten from this group.
--
[ jR ]
@: [email protected]
there is no path to greatness; greatness is the path
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