help? SAN drives and cluster

[williamss159]

SO, first question is why do i see four of each of my san drives? I only see one in the unity SAN?


Once I create a directory in the individual node, I can see it on that node. i go into the cluster and share that directory to the other node but it's not able to use it? and i'm not sure why.




i feel like i should note... i'm on the learning curve the best i can be at this point.

 

[Xavier Droniou]

first multipathd missing go to
https://pve.proxmox.com/wiki/Multipath

follow also part on lvm and after you will be able to share it across all nodes to your cluster or some (as you can segregate view or all node)

 

[bbgeek17]

Here is another article that may be helpful: https://kb.blockbridge.com/technote/proxmox-lvm-shared-storage/

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

 

[williamss159]

okay i got that to make them LCM but i wanted directories for storage etc. it wont let me seem to make those LCMs into that for some reason?

 

[bbgeek17]

@williamss159 , what do you mean by LCM? Perhaps LVM?

LVM is a block type storage , there are no files or directories. If you follow one of many guides, including the one I posted earlier, PVE will be able to slice and dice pieces of overall LVM pool into smaller block level pieces it can use.

There are also more than a few videos on this topic, perhaps a more visual guide will help? Without any endorsement, here is an example:
https://www.youtube.com/watch?v=g9g7T0ooZs0

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

 

[williamss159]

thank you for the help @bbgeek17 i actually followed the proxmox wiki - which got me to be able to make the LVM and thin lvm.

however i need something to hold ISO files etc. and i'm having trouble makeing the directory. in CLI i used mkdir to format one of the wwid's but it still isn't allowing me to do anything with it - i'm not sure why. thoughts?

 

[bbgeek17]

Hi @williamss159 ,
If you want to store ISO, which are files, you need a filesystem. Filesystems can be created on top of a raw device , partition, or LVM slice.
However, cluster of nodes is a special case. It requires a cluster aware filesystem. Using regular filesystem will cause data corruption.
There are two primary freely available cluster filesystems : OCFS and GFS2. Neither is directly integrated or supported by PVE. If you want to use one , you will find a lot of reference material online.

Another popular option is to use NFS, ie NAS.
You can implement it as external device, or run inside a VM. Advice on implementing one is out of the scope of the forum. There are many variables that influence the outcome.

Additionally, after you created a filesystem you need to mount it, preferably persistently.

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

 

[williamss159]

Resolved.

mkdir, mount it, get the uuid and then attach it in the gui as storage directory.

 

[bbgeek17]

mkdir, mount it, get the uuid and then attach it in the gui as storage directory.

If you are happy - we are happy.

You can mark the thread as solved by editing the first post and adjusting the subject prefix.
Cheers

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