[SOLVED] Iscsi multipath and multiple disks - don't allow selecting iscsi disk directly

[czechsys]

Hi,

when using multipath-tools we have for example 8 paths to same disk - dorado_{site}_{path} (4 onsite, 4 offsite). Disks are mapped under VG vg-dorado-{somename}. It's possible to disable ability to even select iscsi disk for example when migrating from storage to storage? Just to harden against click mistakes etc so we evade writing to disk directly and not via correct VG? I don't know, how PVE will react, if i select nonVG disk and don't want to try it.




Thanks.

 

[LnxBil]

Why have you configured them in PVE at all? You should configure them directly in Linux, use Multipath, build a volume group out of them and use the top-level LVM for everything,

 

[bbgeek17]

Configuring them in PVE is ok for non-integrated iSCSI array. Its a bit excessive but for a new user the complexity of iscsiadm may be too much.
Op should just set context=none, those disks should not be marked as being able to contain "disk images".

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

 

[LnxBil]

Op should just set context=none, those disks should not be marked as being able to contain "disk images".

That is a good idea!

 

[czechsys]

Thanks, that's what i need exactly.

Uhm, there is no content option:


So only way is to edit config file directly.

 

[bbgeek17]

Probably because you selected "use LUN directly", which is intended for a case where you pass-through the entire LUN to a VM, which is not the case in your setup.

---

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