On Fri, 2013-10-04 at 21:56 +0200, Thomas Glanzmann wrote: > Hello Nab, > <SNIP> > > > > I often have a configuration where I export multiple demo mode LUNs > > > in different VLANs but I only want initiators from same VLAN access > > > that LUN. To my knowledge that is currently not possible, is it? > > > However, splitting up these LUNs across different TargetName > > +TargetPortalGroupTag endpoints, and only associating the individual > > VLAN interfaces as network portals on these endpoints should provide > > the desired effect, no? > > I tried it, but it was still discovering all LUNs. Is the config right? > > /backstores/fileio create shared-01.v101.campusvl.de /iscsi1/shared-01.v101.campusvl.de size=80G buffered=true > /iscsi create iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de > /iscsi/iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de/tpgt1/portals create 10.101.99.4 > /iscsi/iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de/tpgt1/portals create 10.101.99.5 > /iscsi/iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de/tpgt1/luns create /backstores/fileio/shared-01.v101.campusvl.de lun=10 > /iscsi/iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de/tpgt1/ set attribute authentication=0 demo_mode_write_protect=0 generate_node_acls=1 cache_dynamic_acls=1 > > /backstores/fileio create shared-01.v102.campusvl.de /iscsi1/shared-01.v102.campusvl.de size=80G buffered=true > /iscsi create iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/ create 2 > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/tpgt2/portals create 10.102.99.4 > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/tpgt2/portals create 10.102.99.5 > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/tpgt2/luns create /backstores/fileio/shared-01.v102.campusvl.de lun=10 > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/tpgt2/ set attribute authentication=0 demo_mode_write_protect=0 generate_node_acls=1 cache_dynamic_acls=1 > /iscsi/iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de/ delete 1 > > When I do a discovery I get both endpoints back. > shared-01.v101.campusvl.iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de and > iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de. Or did I misunderstand > howto set the TargetPortalGroupTag? Or did I miss something else or should it > not do that, if so I would go in the code and search for the problem. > So what I was thinking for the above is to configure a vlan device (say eth0.5), and assign it a specific IP address. From there the vlan device's IP address can be assigned as a network portal to individual TargetName+TargetPortalGroupTag endpoints. > > The rest looks reasonable to me. Nice work. > > Prefect. Find v2 of the patches. I also tested them on top of the > iscsi-target: percpu_ida tag starvation regression fixes that you send > out earlier today with the usual test setup: > > - 12 ESX servers, parallel rescan, 24 VMs deployed in parallel > and powered on in parallel and 24 svMotion in parallel, > unloading the target during operation, watch the slabinfo and > reloading it again. > > All working perfectly fine. However I see the following log messages > which I did not see before when I did the 24 concurrent svMotion using > XCOPY: > > Oct 4 21:38:42 node-62 kernel: [ 934.369442] Unable to locate ITT: 0x0000b4aa on CID: 0 > Oct 4 21:38:42 node-62 kernel: [ 934.374446] Unable to locate RefTaskTag: 0x0000b4aa on CID: 0. > > But everything worked afterwards. > > I sniffed the discovery. With the default options it looks like: > > iSCSI (Text Response) > Opcode: Text Response (0x24) > Flags: 0x80 > 1... .... = F: Final PDU in sequence > .0.. .... = C: Text is complete > TotalAHSLength: 0x00 > DataSegmentLength: 0x000008ac > LUN: 0000000000000000 > InitiatorTaskTag: 0x00000001 > TargetTransferTag: 0xffffffff > StatSN: 0xb89e7744 > ExpCmdSN: 0x00000002 > MaxCmdSN: 0x00000002 > Key/Value Pairs > KeyValue: TargetName=iqn.2013-03.de.campusvl.v102.storage:shared-02.v102.campusvl.de > KeyValue: TargetAddress=10.102.99.5:3260,2 > KeyValue: TargetAddress=10.102.99.4:3260,2 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de > KeyValue: TargetAddress=10.102.99.5:3260,2 > KeyValue: TargetAddress=10.102.99.4:3260,2 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:shared-02.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-01.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-02.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-03.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-04.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-05.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-06.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-07.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-08.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-09.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-10.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-11.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-12.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > > When disabling demo_mode_discovery I get: > > find /sys/kernel/config/target/iscsi -name demo_mode_discovery | while read FILE; do echo 0 > $FILE; done > > iSCSI (Text Response) > Opcode: Text Response (0x24) > Flags: 0x80 > 1... .... = F: Final PDU in sequence > .0.. .... = C: Text is complete > TotalAHSLength: 0x00 > DataSegmentLength: 0x000002be > LUN: 0000000000000000 > InitiatorTaskTag: 0x00000001 > TargetTransferTag: 0xffffffff > StatSN: 0xa33a9e16 > ExpCmdSN: 0x00000002 > MaxCmdSN: 0x00000002 > Key/Value Pairs > KeyValue: TargetName=iqn.2013-03.de.campusvl.v102.storage:shared-02.v102.campusvl.de > KeyValue: TargetAddress=10.102.99.5:3260,2 > KeyValue: TargetAddress=10.102.99.4:3260,2 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v102.storage:shared-01.v102.campusvl.de > KeyValue: TargetAddress=10.102.99.5:3260,2 > KeyValue: TargetAddress=10.102.99.4:3260,2 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:shared-01.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:shared-02.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > KeyValue: TargetName=iqn.2013-03.de.campusvl.v101.storage:esx-12.v101.campusvl.de > KeyValue: TargetAddress=10.101.99.4:3260,1 > KeyValue: TargetAddress=10.101.99.5:3260,1 > Padding: 0000 > > Btw. I used the line 'tshark -V -r /tmp/discover6.pcap -R iscsi.keyvalue | > less' to extract the above. Comes in handy. > > As you can see I also get the targets from TGPT '2' discovered. Any idea what > I'm doing here wrong? I'm a bit confused here. What is the discovery output that is expected here..? > > Nab, what do we do about the userland changes? Should I prepare a patch? > If so where can I find the repository for targetcli/rtsadmin? > That's the beauty of configfs + rtslib + targecli. Adding new TPG attributes requires no changes to userspace. ;) --nab -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
