[SOLVED] How to initizlize remote iSCSI LUN device with multipath?

[aasami]

I have exported an iSCSI LUN with multipath to a PBS server in the SAN.
How should I initialize this remote disk? It doesn't show up in drive list.

# lsscsi
[1:0:0:0]    cd/dvd  QEMU     QEMU DVD-ROM     2.5+  /dev/sr0
[2:0:0:0]    disk    QEMU     QEMU HARDDISK    2.5+  /dev/sda
[3:0:0:0]    disk    HP       MSA 2040 SAN     G210  /dev/sdb
[4:0:0:0]    disk    HP       MSA 2040 SAN     G210  /dev/sdc
#

# multipath -l
msa2040 (3600c0ff000257f9f161bbd5f01000000) dm-2 HP,MSA 2040 SAN
size=5.0T features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
|-+- policy='round-robin 0' prio=0 status=active
| `- 3:0:0:0 sdb 8:16 active undef running
`-+- policy='round-robin 0' prio=0 status=enabled
  `- 4:0:0:0 sdc 8:32 active undef running
#

# proxmox-backup-manager disk list
┌──────┬──────┬─────┬───────────┬────────────┬───────────────┬─────────┬────────┐
│ name │ used │ gpt │ disk-type │       size │ model         │ wearout │ status │
╞══════╪══════╪═════╪═══════════╪════════════╪═══════════════╪═════════╪════════╡
│ sda  │ lvm  │   1 │ hdd       │ 8589934592 │ QEMU_HARDDISK │       - │ passed │
└──────┴──────┴─────┴───────────┴────────────┴───────────────┴─────────┴────────┘
#

# proxmox-backup-manager disk initialize /dev/mapper/msa2040
Error: parameter verification errors

parameter 'disk': value does not match the regex pattern

Usage: proxmox-backup-manager <disk> [OPTIONS]
<disk>     <string>
             Block device name (/sys/block/<name>).

Optional parameters:

--uuid     <string>
             UUID for the GPT table.

# ls -l /dev/mapper/msa2040
lrwxrwxrwx 1 root root 7 nov 24 15:18 /dev/mapper/msa2040 -> ../dm-2
# proxmox-backup-manager disk initialize dm-2
Error: parameter verification errors

parameter 'disk': value does not match the regex pattern

Usage: proxmox-backup-manager <disk> [OPTIONS]
<disk> <string>
Block device name (/sys/block/<name>).

Optional parameters:

--uuid <string>
UUID for the GPT table.

#

 

[dcsapak]

we do not support multipath devices with our helper, but it is just a thin wrapper around the various linux utils like gdisk/mkfs/etc...

so you could always create a partition/lvm/filesystem yourself on those disks and simply create a datastore that point to it