LVM RAID10 over iscsi ??

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May 6, 2022
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So im curios about this setup and how actually will work in a production env in case some else out there tried before,

I have 2 SAN Boxes which are located aprox.. 1km away from each other (lets call site 1 and site 2) , they are conected to a 10GB fiber network switches and then they go to my servers over iscsi this is an isolated network so nothing else than storage going there. SO i have 1 pve server conected to site1 over iscsi and multipath, targets show up and login succed, this woks the same for conecting this server on site 1 to storage on site 2. so now i have lets call /sdb (site1 lun) and /sdc( site2 lun) as devices on my pve shell , from here i think i coud create the LMV setup with a VG using both luns one from each site and create a LV with RAID 10 so this way i have a redundancy of what i create in site 1 over to the storage of site 2. So the big question is this a good idea??
 
Do you plan or have a PVE cluster or just a single machine?

In principle, this is a great idea. With shared LVM (over multiple client nodes), there are some limitations and I don't know if mirroring is one of them. Striping it no problem, this is the default so mirroring could also be no problem. In a "real" shared LVM setup, it is not a problem, as the RHEL documentation describes it.
 
Yes the final setup if all the testing works well would be two sites (1km distant) , conected by 2 10gb links, 1 storage san each site 4 servers site 1 and 3 servers site 2 , all servers are same Dell power edge model . So I’m thinking a cluster with HA . The project it’s to offer a solid alternative to expired VMware solution before next renewal