Proxmox 4.4 and storage ZFS over iSCSI on OpenMediaVault

Ivan Drago

New Member
May 10, 2017
1
0
1
45
Hi,

I have configured storage on Proxmox:

Code:
zfs: omv
        iscsiprovider iet
        target iqn.2017-05.net.xxxxxxx.pluto:omvsan
        blocksize 4k
        pool omvz
        portal xxx.xxx.xxx.xxx
        nowritecache 1
        content images
        sparse 1

The storage appears to be connected correctly.
At the storage status page I can see status "Active".

I'm not sure if iSCSI is correctly configured on OMV side:

Code:
    <iscsitarget>
      <enable>1</enable>
      <extraoptions></extraoptions>
      <authentication></authentication>
      <targets>
        <target>
          <uuid>f0807e5d-a9d2-4edd-b178-e74d8b56a126</uuid>
          <activation>2017-05</activation>
          <identifier>omvsan</identifier>
          <alias></alias>
          <headerdigest>CRC32C</headerdigest>
          <datadigest>CRC32C</datadigest>
          <maxconnections>3</maxconnections>
          <maxsessions>10</maxsessions>
          <initialr2t>1</initialr2t>
          <immediatedata>1</immediatedata>
          <maxrecvdatasegmentlength>4096</maxrecvdatasegmentlength>
          <maxxmitdatasegmentlength>4096</maxxmitdatasegmentlength>
          <maxburstlength>262144</maxburstlength>
          <firstburstlength>65536</firstburstlength>
          <maxoutstandingr2t>1</maxoutstandingr2t>
          <datapduinorder>1</datapduinorder>
          <datasequenceinorder>1</datasequenceinorder>
          <errorrecoverylevel>0</errorrecoverylevel>
          <nopinterval>0</nopinterval>
          <noptimeout>0</noptimeout>
          <wthreads>8</wthreads>
          <queuedcommands>32</queuedcommands>
          <comment></comment>
          <extraoptions></extraoptions>
          <authentication></authentication>
          <luns>
            <lun>
              <type>blockio</type>
              <devicefile>/dev/zd0</devicefile>
              <scsiid></scsiid>
              <scsisn></scsisn>
              <iomode>wt</iomode>
              <id>0</id>
              <uuid>aca20eaf-dd59-4136-833c-ba19873d83e5</uuid>
            </lun>
          </luns>
        </target>
      </targets>
    </iscsitarget>

At the LUN tab of iSCSI target configuration I must select any existing ZFS volume but Proxmox storage is designed to create ZFS volumes via iSCSI.

Finally after VM creation I got an error:

Code:
TASK ERROR: create failed - 6: Parse error [LUN 0 Path=/dev/zd0,Type=blockio] at /usr/share/perl5/PVE/Storage/LunCmd/Iet.pm line 171.

Although on the OpenMediaVault ZFS volume "vm-100-disk-1" is created perfectly.
 

likebugs

New Member
Nov 27, 2015
8
0
1
Hello,

OMV 3.x with iscsi target is not support fileio. You should manually change iscsi configure in file /etc/iet/ietd.conf.

Type=blockio => Type=fileio
 

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