StarWind Virtual SAN:
Configuration Guide for Proxmox Virtual Environment [KVM], VSAN Deployed as a Controller VM using Web UI

October 15, 2020
19 min read
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Annotation

Relevant products
This guide applies to StarWind Virtual SAN, StarWind Virtual SAN Free (starting from version 1.2xxx – Oct. 2023).

Purpose

This document outlines how to configure a Proxmox Cluster using StarWind Virtual SAN (VSAN), with VSAN running as a Controller Virtual Machine (CVM). The guide includes steps to prepare Proxmox hosts for clustering, configure physical and virtual networking, and set up the Virtual SAN Controller Virtual Machine.

For more information about StarWind VSAN architecture and available installation options, please refer to the StarWind Virtual (vSAN) Getting Started Guide.

Audience

This technical guide is intended for storage and virtualization architects, system administrators, and partners designing virtualized environments using StarWind Virtual SAN (VSAN).

Expected result

The end result of following this guide will be a fully configured high-availability Proxmox Cluster that includes virtual machine shared storage provided by StarWind VSAN.

Prerequisites

StarWind Virtual SAN system requirements

Prior to installing StarWind Virtual SAN, please make sure that the system meets the requirements, which are available via the following link:
https://www.starwindsoftware.com/system-requirements

Recommended RAID settings for HDD and SSD disks:
https://knowledgebase.starwindsoftware.com/guidance/recommended-raid-settings-for-hdd-and-ssd-disks/

Please read StarWind Virtual SAN Best Practices document for additional information:
https://www.starwindsoftware.com/resource-library/starwind-virtual-san-best-practices

Solution diagram

The diagrams below illustrate the network and storage configuration of the solution:

2-node cluster

3-node cluster

Preconfiguring cluster nodes

1. ProxMox cluster should be created before deploying any virtual machines.

2. 2-nodes cluster requires quorum. iSCSI/SMB/NFS cannot be used for this purposes. QDevice-Net package must be installed on 3rd Linux server, which will act as a witness.
https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support

3. Install qdevice on witness server:

 ubuntu# apt install corosync-qnetd

1	ubuntu# apt install corosync-qnetd

4. Install qdevice on both cluster nodes:

 pve# apt install corosync-qdevice

1	pve# apt install corosync-qdevice

5. Configure quorum running the following command on one of the ProxMox node (change IP address)

 pve# pvecm qdevice setup %IP_Address_Of_Qdevice%

1	pve# pvecm qdevice setup %IP_Address_Of_Qdevice%

6. Configure network interfaces on each node to make sure that Synchronization and iSCSI/StarWind heartbeat interfaces are in different subnets and connected according to the network diagram above. In this document, 172.16.10.x subnet is used for iSCSI/StarWind heartbeat traffic, while 172.16.20.x subnet is used for the Synchronization traffic. Choose node and open System -> Network page.

7. Click Create. Choose Linux Bridge.

8. Create Linux Bridge and set IP address. Set MTU to 9000. Click Create.

9. Repeat step 8 for all network adapters, which will be used for Synchronization and iSCSI/StarWind heartbeat traffic.

10. Verify network configuration in /etc/network/interfaces file. Login to the node via SSH and check the contents of the file.

11. Enable IOMMU support in kernel, if PCIe passthourgh will be used to pass RAID Controller, HBA or NVMe drives to the VM. Update grub configuration file.
For Intel CPU:
Add “intel_iommu=on iommu=pt” to GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub file.
For AMD CPU:
Add “iommu=pt” to GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub file.
12. Reboot the host.
13. Repeat steps 6-12 an all nodes.

Deploying Starwind Virtual SAN CVM

1. Download StarWind VSAN CVM KVM: VSAN by StarWind: Overview

2. Extract the VM StarWindAppliance.qcow2 file from the downloaded archive.

3. Upload StarWindAppliance.qcow2 file to the Proxmox Host via any SFTP client (e.g. WinSCP) to /root/ directory.

4. Create a VM without OS. Login to Proxmox host via Web GUI. Click Create VM.

5. Choose node to create VM. Enable Start at boot checkbox and set Start/Shutdown order to 1. Click Next.

6. Choose Do not use any media and choose Guest OS Linux. Click Next.

6. Specify system options. Choose Machine type q35 and check the Qemu Agent box. Click Next.

7. Remove all disks from the VM. Click Next.

8. Assign 8 cores to the VM and choose Host CPU type. Click Next.

9. Assign at least 8GB of RAM to the VM. Click Next.

10. Configure Management network for the VM. Click Next.

11. Confirm settings. Click Finish.

12. Connect to Proxmox host via SSH. Attach StarWindAppliance.qcow2 file to the VM.

qm importdisk 100 /root/StarWindAppliance.qcow2 local-lvm

1	qm importdisk 100 /root/StarWindAppliance.qcow2 local-lvm

13. Open VM and go to Hardware page. Add unused SCSI disk to the VM.

14. Attach Network interfaces for Synchronization and iSCSI/Heartbeat traffic.

15. Open Options page of the VM. Select Boot Order and click Edit.

16. Move scsi0 device as #1 to boot from.

17. Repeat all the steps from this section on other Proxmox hosts.

Attaching storage to StarWind Virtual SAN CVM

Please follow the steps below to attach desired storage type to the CVM

Attaching Virtual disk to StarWind Virtual SAN CVM

1. Open VM Hardware page in Proxmox and add drive to the VM, which going to be used by StarWind service. Specify size of the Virtual disk and click OK.

Note. It is recommended to use VirtIO SCSI single controller for better performance. If multiple virtual disks are needed to be used in a software RAID inside of the CVM, VirtIO SCSI controller should be used.

2. Repeat step 1 to attach additional Virtual Disks.

3. Start VM.

4. Repeat steps 1-2 on all nodes.

Attaching PCIe device to StarWind Virtual SAN CVM

1. Shutdown StarWind VSAN CVM.

2. Open VM Hardware page in Proxmox and click Add -> PCI Device.3. Choose PCIe Device from drop-down list.

4. Click Add.

5. Edit Memory. Uncheck Ballooning Device. Click OK.

6. Start VM.

7. Repeat steps 1-6 on all nodes.

Initial Configuration Wizard

1. Start the StarWind Virtual SAN Controller Virtual Machine.

2. Launch the VM console to view the VM boot process and obtain the IPv4 address of the Management network interface.

NOTE: If the VM does not acquire an IPv4 address from a DHCP server, use the Text-based User Interface (TUI) to set up the Management network manually.

Default credentials for TUI: user/rds123RDS

3. Using a web browser, open a new tab and enter the VM’s IPv4 address to access the StarWind VSAN Web Interface. On the Your connection is not private screen, click Advanced and then select Continue to…

4. On the Welcome to StarWind Appliance screen, click Start to launch the Initial Configuration Wizard.

5. On the License step, upload the StarWind Virtual SAN license file.

6. On the EULA step, read and accept the End User License Agreement to continue.

7. On the Management network step, review or edit the network settings and click Next.

IMPORTANT: The use of Static IP mode is highly recommended.

8. On the Static hostname, specify the hostname for the virtual machine and click Next.

9. On the Administrator account step, specify the credentials for the new StarWind Virtual SAN administrator account and click Next.

10. Wait until the Initial Configuration Wizard configures StarWind Virtual SAN for you.

11. Please standby until the Initial Configuration Wizard configures StarWind VSAN for you.

12. After the configuration process is completed, click Finish to install the StarWind vCenter Plugin immediately, or uncheck the checkbox to skip this step and proceed to the Login page.

13. Repeat steps 1 through 12 on each Windows Server host.

Add Appliance

To create replicated, highly available storage, add partner appliances that use the same StarWind Virtual SAN license key.

1. Navigate to the Appliances page and click Add to open the Add appliance wizard.

2. On the Credentials step, enter the IP address and credentials for the partner StarWind Virtual SAN appliance, then click Next.

3. Provide credentials of partner appliance.

3. Wait for the connection to be established and the settings to be validated

4. On the Summary step, review the properties of the partner appliance, then click Add Appliance.

Configure HA networking

1. Launch the “Configure HA Networking” wizard.

2. Select appliances for network configuration.
NOTE: the number of appliances to select is limited by your license, so can be either two or three appliances at a time.

3. Configure the “Data” network. Select interfaces to carry storage traffic, configure them with static IP addresses in unique networks, and specify subnet masks:

assign and configure at least one interface on each node
for redundant configuration, select two interfaces on each node
ensure interfaces are connected to client hosts directly or through redundant switches

4. Assign MTU value to all selected network adapters, e.g. 1500 or 9000. Ensure the switches have the same MTU value set.

5. Click Next to validate Data network settings.

6. Configure the “Replication” network. Select interfaces to carry storage traffic, configure them with static IP addresses in unique networks, and specify subnet masks:

assign and configure at least one interface on each node
for redundant configuration, select two interfaces on each node
ensure interfaces are connected to client hosts directly or through redundant switches

7. Assign MTU value to all selected network adapters, e.g. 1500 or 9000. Ensure the switches have the same MTU value set.

8. Click Next to validate the Replication network settings completion.

9. Review the summary and click Configure.

Add physical disks

Attach physical storage to StarWind Virtual SAN Controller VM:

Ensure that all physical drives are connected through an HBA or RAID controller.
To get the optimal storage performance, add HBA, RAID controllers, or NVMe SSD drives to StarWind CVM via a passthrough device.

For detailed instructions, refer to Microsoft’s documentation on DDA. Also, find the storage provisioning guidelines in the KB article.

Create Storage Pool

1. Click the “Add” button to create a storage pool.

2. Select two storage nodes to create a storage pool on them simultaneously.

3. Select physical disks to include in the storage pool name and click the “Next” button.
NOTE: Select identical type and number of disks on each storage node to create identical storage pools.

4. Select one of the preconfigured storage profiles or create a redundancy layout for the new storage pool manually according to your redundancy, capacity, and performance requirements.

Hardware RAID, Linux Software RAID, and ZFS storage pools are supported and integrated into the StarWind CVM web interface. To make easier the storage pool configuration, the preconfigured storage profiles are provided to configure the recommended pool type and layout according to the direct-attached storage:

hardware RAID – configures Hardware RAID’s virtual disk as a storage pool. It is available only if a hardware RAID controller is passed through to the CVM
high performance – creates Linux Software RAID-10 to maximize storage performance while maintaining redundancy
high capacity – creates Linux Software RAID-5 to maximize storage capacity while maintaining
redundancy
better redundancy – creates ZFS Stripped RAID-Z2 (RAID 60)) to maximize redundancy while maintaining high storage capacity
manual – allows users to configure any storage pool type and layout with attached storage

5. Review “Summary” and click the “Create” button to create the pools on storage servers simultaneously.

Create Volume

1. To create volumes, click the “Add” button.

2. Select two identical storage pools to create a volume simultaneously.

3. Specify volume name and capacity.

4. Select the Standard volume type.

5. Review “Summary” and click the “Create” button to create the pool.

Create HA LUN

The LUN availability for StarWind LUN can be Standalone and High availability (2-way or 3-way replication) and is narrowed by your license.

1. To create a virtual disk, click the Add button.

2. Select the protocol.

3. Choose the “High availability” LUN availability type.

4. Select the appliances that will host the LUN. Partner appliances must have identical hardware configurations, including CPU, RAM, storage, and networking.

5. Select a volume to store the LUN data. Selected volumes must have identical storage configurations.

6. Select the “Heartbeat” failover strategy.
NOTE: To use the Node witness or the File share witness failover strategies, the appliances should have these features licensed.

7. Specify the HA LUN settings, e.g. name, size, and block size. Click Next.

8. Review “Summary” and click the “Create” button to create the LUN.

Connecting StarWind HA Storage to Proxmox Hosts

1. Connect to Proxmox host via SSH and install multipathing tools.

 pve# apt-get install multipath-tools

1	pve# apt-get install multipath-tools

2. Edit nano /etc/iscsi/initiatorname.iscsi setting the initiator name.

3. Edit /etc/iscsi/iscsid.conf setting the following parameters:

node.startup = automatic
node.session.timeo.replacement_timeout = 15
node.session.scan = auto

node.startup = automatic

node.session.timeo.replacement_timeout = 15

node.session.scan = auto

Note. node.startup = manual is the default parameter, it should be changed to node.startup = automatic.

4. Create file /etc/multipath.conf using the following command:

touch /etc/multipath.conf

1	touch /etc/multipath.conf

5. Edit /etc/multipath.conf adding the following content:

devices{
	device{
		vendor "STARWIND"
		product "STARWIND*"
		path_grouping_policy multibus
		path_checker "tur"
		failback immediate
		path_selector "round-robin 0"
		rr_min_io 3
		rr_weight uniform
		hardware_handler "1 alua"
	}
}

defaults {
        polling_interval        2
        path_selector           "round-robin 0"
        path_grouping_policy    multibus
        uid_attribute           ID_SERIAL
        rr_min_io               100
        failback                immediate
	user_friendly_names	yes
}

devices{

device{

vendor "STARWIND"

product "STARWIND*"

path_grouping_policy multibus

path_checker "tur"

failback immediate

path_selector "round-robin 0"

rr_min_io 3

rr_weight uniform

hardware_handler "1 alua"

}

defaults {

polling_interval 2

path_selector "round-robin 0"

path_grouping_policy multibus

uid_attribute ID_SERIAL

rr_min_io 100

failback immediate

user_friendly_names yes

}

6. Run iSCSI discovery on both nodes:

pve# iscsiadm -m discovery -t st -p 10.20.1.10
pve# iscsiadm -m discovery -t st -p 10.20.1.20

1 2	pve# iscsiadm -m discovery -t st -p 10.20.1.10 pve# iscsiadm -m discovery -t st -p 10.20.1.20

7. Connect iSCSI LUNs:

pve# iscsiadm -m node -T iqn.2008-08.com.starwindsoftware:sw1-ds1 -p 10.20.1.10 -l
pve# iscsiadm -m node -T iqn.2008-08.com.starwindsoftware:sw2-ds1 -p 10.20.1.20 -l

1 2	pve# iscsiadm -m node -T iqn.2008-08.com.starwindsoftware:sw1-ds1 -p 10.20.1.10 -l pve# iscsiadm -m node -T iqn.2008-08.com.starwindsoftware:sw2-ds1 -p 10.20.1.20 -l

8. Get WWID of StarWind HA device:

/lib/udev/scsi_id -g -u -d /dev/sda

1	/lib/udev/scsi_id -g -u -d /dev/sda

9. The wwid must be added to the file ‘/etc/multipath/wwids’. To do this, run the following command with the appropriate wwid:

multipath -a %WWID%

1	multipath -a %WWID%

10. Restart multipath service.

systemctl restart multipath-tools.service

1	systemctl restart multipath-tools.service

11. Check if multipathing is running correctly:

 pve# multipath -ll

1	pve# multipath -ll

12. Repeat steps 1-11 on every Proxmox host.

13. Create LVM PV on multipathing device:

 pve# pvcreate /dev/mapper/mpatha

1	pve# pvcreate /dev/mapper/mpatha

where mpatha – alias for StarWind LUN
14. Create VG on LVM PV:

 pve# vgcreate vg-vms /dev/mapper/mpath0

1	pve# vgcreate vg-vms /dev/mapper/mpath0

15. Login to Proxmox via Web and go to Datacenter -> Storage. Add new LVM storage based on VG created on top of StarWind HA Device. Enable Shared checkbox. Click Add.

16. Login via SSH to all hosts and run the following command:

pvscan --cache

1	pvscan --cache

Conclusion

Following this guide, a Proxmox Cluster was deployed and configured with StarWind Virtual SAN (VSAN) running in a CVM on each host. As a result, a virtual shared storage “pool” accessible by all cluster nodes was created for storing highly available virtual machines.

StarWind Virtual SAN: Configuration Guide for Proxmox Virtual Environment [KVM], VSAN Deployed as a Controller VM using Web UI