iscsi hardware acceleration

[ziotibia81]

Hello,
I'm using iscsi-scst on ubuntu machine to store some VMs backups of a virtualization environment.
Scst was build using script from https://github.com/bvanassche/scst/blob/master/INSTALL.md , whinthout any changes, and selecting dkms deb.

I'm doing a performances comparsion with TrueNAS Scale 21.5 BETA1.

My VMs Hypervisor warn about missing hardware acceleration in TrueNAS Scale iSCSI. This doensn't happens on Ubuntu machine.
Scst version is the same, and scst.conf is almost the same.

My Ubuntu scst.conf:

Code:

# Automatically generated by SCST Configurator v3.6.0-pre.


TARGET_DRIVER copy_manager {
        TARGET copy_manager_tgt
}

HANDLER vdisk_blockio {
       DEVICE blockio1 {
               enabled 1
               filename /dev/vg0/lv-test
       }
}

TARGET_DRIVER iscsi {
       IncomingUser "test testtesttest"
       enabled 1
       TARGET iqn.2021-08.net.vlnb:test {

               IncomingUser "test testtesttest"
               HeaderDigest CRC32C,None
               enabled 1
               LUN 0 blockio1

       }
}

TrueNAS Scale scst.conf

Code:

HANDLER vdisk_blockio {
    DEVICE utec-btr {
        filename /dev/zvol/default_storage/utec-btr
        blocksize 4096
        read_only 0
        usn fefcfe5af671000
        naa_id 0x6589cfc00000099caacb4eb48956bae6
        prod_id "iSCSI Disk"
        t10_vend_id TrueNAS
        t10_dev_id fefcfe5af671000
    }

}

TARGET_DRIVER iscsi {
    enabled 1

    TARGET iqn.2005-10.org.freenas.ctl:utec-btr {
        enabled 1
        per_portal_acl 1

        GROUP security_group {
            INITIATOR *\#192.168.1.51

            LUN 0 utec-btr
        }
    }
}

Do you think I'm missing something?

 

[Arwen]

I have found that many PCs come with virtualization feature disabled in the BIOS. You would have to manually go into the BIOS and enable virtualization, (and possibly VT-D).

Has the computer used for TrueNAS Scale ever been used with virtual clients?

 

[ziotibia81]

I'm not using TrueNAS as Hyperviser. Only as iSCSI server....
I'm talking about iSCSI hardware acceleration (like VAAI, ODX ecc ecc).

But I'm running TrueNAS as virtual machine, I have to try using real hardware.