SAS Multipath

[arakyta_andy]

Hey evreryone! I was able to get guidance on getting my SAS disks to show up in Proxmox. I have two Dell R350s and a Dell EMC ME4012. Each R350 has two SAS cables connecting to controller A and B. When I look at the disks I see..



So the ME4 3.84 TB and 1.20TB disks show up twice. Same way with the second pve node. I have these two R350s clustered. I've never configured proxmox to this extent. Could someone walk me through the steps I need to take?

 

[bbgeek17]

Best way is to start configuring, using the many guides/discussions available, and if you hit a snag - come back with specific question:

https://www.dell.com/support/manual...012/me4_series_ag_pub/multipath-configuration
https://gist.github.com/mrpeardotnet/547aecb041dbbcfa8334eb7ffb81d784
https://forum.proxmox.com/threads/how-to-setup-multipathing-on-proxmox-ve.108418/
https://forum.proxmox.com/threads/multipath-fibre-channel-setup.100857/

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[arakyta_andy]

Best way is to start configuring, using the many guides/discussions available, and if you hit a snag - come back with specific question:

https://www.dell.com/support/manual...012/me4_series_ag_pub/multipath-configuration
https://gist.github.com/mrpeardotnet/547aecb041dbbcfa8334eb7ffb81d784
https://forum.proxmox.com/threads/how-to-setup-multipathing-on-proxmox-ve.108418/
https://forum.proxmox.com/threads/multipath-fibre-channel-setup.100857/

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

Thank you. I'm surprised proxmox doesn't have anything built into the GUI to handle this since it's an enterprise solution

 

[bbgeek17]

Each storage vendor has its own quirks. You have a variety of SAS, FC, iSCSI, NVMe/TCP, RDB, etc.

The storage options that are used by majority of users are well documented (LVM and Ceph). However, attempting to document various commercial vendors' procedures is somewhat pointless. Documentation implies support, and also that someone will always be on top of it. Your storage vendor is always the best source of information in this case.

If you havent yet come across this page https://pve.proxmox.com/wiki/Storage, take a look. Specifically you will want to understand what layer to place on top of your multipath device for shared storage use-case. And what limitations that brings with it.

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[bbgeek17]

this appears to be a suitable google search result for "multipath sas debian":
https://barry.blog/2009/12/16/dell-md3000-multi-path-on-debian/

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[arakyta_andy]

this appears to be a suitable google search result for "multipath sas debian":
https://barry.blog/2009/12/16/dell-md3000-multi-path-on-debian/

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

I've been searching for a bit and haven't come across this article. I'll check it out. Thank you.