iSCSI - only LUN shown, can't format/use LVM or ext4

[ivdok]

pveversion --verbose
proxmox-ve: 5.4-1 (running kernel: 4.15.18-16-pve)
pve-manager: 5.4-6 (running version: 5.4-6/aa7856c5)
pve-kernel-4.15: 5.4-4
pve-kernel-4.15.18-16-pve: 4.15.18-41
pve-kernel-4.15.18-15-pve: 4.15.18-40
pve-kernel-4.15.18-14-pve: 4.15.18-39
pve-kernel-4.15.18-13-pve: 4.15.18-37
pve-kernel-4.15.18-12-pve: 4.15.18-36
pve-kernel-4.15.18-9-pve: 4.15.18-30
ceph: 12.2.12-pve1
corosync: 2.4.4-pve1
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.1-10
libpve-apiclient-perl: 2.0-5
libpve-common-perl: 5.0-52
libpve-guest-common-perl: 2.0-20
libpve-http-server-perl: 2.0-13
libpve-storage-perl: 5.0-43
libqb0: 1.0.3-1~bpo9
lvm2: 2.02.168-pve6
lxc-pve: 3.1.0-3
lxcfs: 3.0.3-pve1
novnc-pve: 1.0.0-3
proxmox-widget-toolkit: 1.0-28
pve-cluster: 5.0-37
pve-container: 2.0-39
pve-docs: 5.4-2
pve-edk2-firmware: 1.20190312-1
pve-firewall: 3.0-22
pve-firmware: 2.0-6
pve-ha-manager: 2.0-9
pve-i18n: 1.1-4
pve-libspice-server1: 0.14.1-2
pve-qemu-kvm: 3.0.1-2
pve-xtermjs: 3.12.0-1
qemu-server: 5.0-52
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.13-pve1~bpo2

cat /etc/pve/storage.cfg
dir: local
   path /var/lib/vz
   content vztmpl,iso,backup
   maxfiles 31
   shared 0

zfspool: local-zfs
   pool rpool/data
   content images,rootdir
   sparse 1

iscsi: iscsi
   portal 172.26.1.2
   target iqn.1991-05.com.microsoft:hv-target-target
   content none
   nodes prod-4,prod-3,prod-2

All I see after connecting to iSCSI target is a raw LUN which I can't do shit with - it's unremovable from storage, unformattable within GUI, nothing can be added to the storage, and putting LVM over it does nothing too. Of course I can mount it via fstab as a directory and be done with it, but shouldn't anything in GUI be "production-ready"?

 

[dcsapak]

and putting LVM over it does nothing too

what do you mean by this?

normally you now add an 'LVM' storage with your iscsi storage as base and then use your lvm storage for the vms

 

[ivdok]

what do you mean by this?

normally you now add an 'LVM' storage with your iscsi storage as base and then use your lvm storage for the vms

Everything is greyed out, no option to transfer backup/vm or even upload ISO, even with cfg tweak:

lvm: test
        vgname vg0
        base ext4:0.0.0.scsi-360003ff44dc75adcb2086df0c62928fa
        content rootdir,images,backup,iso,vztmpl
        shared 1

And iSCSI storage is left hanging in storage list, with no use other than being an eyesore.

 

[dcsapak]

Everything is greyed out, no option to transfer backup/vm or even upload ISO, even with cfg tweak:

lvm is a block storage, you cannot store files there only ct/vm images so this is no suprise

to store isos/backups/ct templates you need a file based storage, such as a local directory/nfs/smb/etc.

 

[ivdok]

lvm is a block storage, you cannot store files there only ct/vm images so this is no suprise

to store isos/backups/ct templates you need a file based storage, such as a local directory/nfs/smb/etc.

I've tried to create ext4 on top of LVM on top of iSCSI block, and then mounting in FS and making it a shared "folder" type storage in PVE, but it doesn't sync anything between the nodes. Flushing manually with "sync; sync; sync" doesn't affect anything either.

 

[Stoiko Ivanov]

I've tried to create ext4 on top of LVM on top of iSCSI block,

ext4 will not work for this - you would need a cluster filesystem (ocfs, gfs2) for this - otherwise you can only mount the lvm on one host (or you'll get a filesystem corruption when 2 writers write to it) - maybe your storage supports NFS, and you can mount a share on all your nodes?