Proxmox OpenVZ BK Disk Setup, help request

R

raid

Member
Jul 25, 2010
102
0
16
Italy
Anyone with experience in proxmox able to point me in the right direction for setting up the following.
I have the following physical disks:
250gb
250gb
1000gb
and the following RAID Controller:
ADAPTEC RAID 2405
------------------------
I am trying to achieve the following, but am unsure how to proceed..
1 - Install Proxmox on the first 250gb disk - RAID Mirrored (RAID1 or RAID 10)
2 - Use the second 1000gb disk for backups
-------------------------
The server will run only one OpenVZ container (LAMP) and will be as similar as possible to an HA server, (in the next months we plan to add a second cluster).
I'm new to Linux system, so any hints or tips, would be very welcome, step-to-step instruction will be much appreciated.
thanks
 
raid said:
Anyone with experience in proxmox able to point me in the right direction for setting up the following.
I have the following physical disks:
250gb
250gb
1000gb
and the following RAID Controller:
ADAPTEC RAID 2405
------------------------
I am trying to achieve the following, but am unsure how to proceed..
1 - Install Proxmox on the first 250gb disk - RAID Mirrored (RAID1 or RAID 10)
2 - Use the second 1000gb disk for backups
-------------------------
The server will run only one OpenVZ container (LAMP) and will be as similar as possible to an HA server, (in the next months we plan to add a second cluster).
I'm new to Linux system, so any hints or tips, would be very welcome, step-to-step instruction will be much appreciated.
thanks
Click to expand...

Hi,
with your disks you can only run a raid1 over the two 250gb-disk - not fast but save...
I don't know the raidcontroller (i use them long time ago), perhaps you can also use the 1TB-disk as passtrough-disk to benefit from the cache.
The backup-disk can you mount to a directory (in /etc/fstab) e.g. /backup and define this directory in the gui (storage).
If you wan't to use HA - drbd is perhaps interesting - but this works (without hacks) only for kvm-guests.

Udo
 
thank for your help.
could you give me more info about the steps for mounting the 1Tb HD?
I tryed with no success the following step:
1) create directory: mkdir /BACKUP (ok)
2) mount HD: mount /dev/sdb1 /BACKUP (ko) error unrecognised lvm2pv filesystem.
May be I have a wrong filesystem, so I tryed to change it using FDISK, but which filesytem I have to use? I tryed 83 and 8e with no succes.
---------------
I tryed also:
1) mkdir /BACKUP1 (ok)
2) pvcreate dev/sdb1 (ok)
2 vgcreate BK-disk (ok)
3) added the LVM group to the storage list via web interface (ok)
4) When try to schedule the backup I didn't found any valid backup dir.
I suppose I cannot backup on LVM group
----------------------
Any tips?
 
Don't use pvcreate!
Repartition and reformat your 1TB hd, with ext3 filesystem, let's say that will become /dev/sdb1
Edit fstab so you have it automatically mounted in /BACKUP, but you can simply stry from command line like you did, should work
In web interface, storage, choose "add directory" and point to /BACKUP. In Content field choose "VZDump Backups"
That's all :)
 
It's gone.
I did the following steps:
1. Create directory: mkdir /BACKUP
1. Create FS #: mkfs.ext3 /dev/sdb1
2. Mount the drive to Directory: mount -t ext3 /dev/sdb1 /BACKUP
4. In proxmox storage web interface I chose "add directory", pointed it to /BACKUP and chose "VZDump BACKUP"

that's all
thanks a lot
 
raid said:
It's gone.
I did the following steps:
1. Create directory: mkdir /BACKUP
1. Create FS #: mkfs.ext3 /dev/sdb1
2. Mount the drive to Directory: mount -t ext3 /dev/sdb1 /BACKUP
4. In proxmox storage web interface I chose "add directory", pointed it to /BACKUP and chose "VZDump BACKUP"

that's all
thanks a lot
Click to expand...
Hi,
add also an entry in /etc/fstab, to mount the disk automaticly at reboot.

Udo
 
NOW I'LL TRY TO RECOVER.
CASE: The server has exploded, I saved only the backup disk! (don't worry, is only a simulation)
On the backup disk I have the last snapshot backup and the /root and /etc dir backup.
------
1. Install PROXMOX on a new server (ok in 5 min)
2. Connect the 1TB HD to the server
3. mount the 1TB HD: mount -t ext3 /dev/deb1 /BACKUP
4. recover the proxmox configuration: untar /etc e /root stored in the /BACKUP dir
5. revover the VM: vzrestore /BACKUP/vzdump-openvz-101-2010_08_02-10_00_02.tgz 101
6. restart the server
------------------------------
RESULT:
I have the VM again on-line in just 15 min (and this is very nice)
I lost the Appliance Templates (the page is empty)
I lost the System Config DNS, Admin email, Options
I lost the storage list
I lost the Backup Job list
I don't know about the certificate (I didn' istalled yet)
I lost the system logs
--------
Looks like the step 4 didn't its job
Any tips having the Proxmox full restored?
thanks


Hi,
add also an entry in /etc/fstab, to mount the disk automaticly at reboot.

Udo
Click to expand...
Do you mean adding this row to /etc/fstab: /dev/sdb1 /BACKUP ext3 defaults 0 1
 
Looks like the step 4 is not a good idea!
the previous recovery has been successful thanks to the non-execution of step 4
When I ran back to point 4, on the first reboot the server crashed and the reasons seem obvious.
I suppose that only some /etc subdir can be retrieved
 
raid said:
Looks like the step 4 is not a good idea!
the previous recovery has been successful thanks to the non-execution of step 4
When I ran back to point 4, on the first reboot the server crashed and the reasons seem obvious.
I suppose that only some /etc subdir can be retrieved
Click to expand...
Hi,
perhaps you don't have anything saved?
You wrote that you missed Admin email - this email was stored in /root/.forward (hidden file due the beginning point).
To store the templates and disks-isos you must also save /var/lib/vz/template.
If you have a backup of all VMs you need after a fresh install imho the network-config (/etc/network/interfaces) and the storage-config (/etc/pve/storage.cfg). In /etc/pve are also the certificates...

Udo
 
So to summarize, this is the list of folders that should keep:
  • /root/.forward (admin email)
  • /var/lib/vz/template (templates)
  • /etc/network/interfaces (network interface)
  • /etc/pve/storage.cfg (storage-config)
  • /etc/vzdump.conf (backup setting)
  • /etc/fstab (Not restored but contains useful information)
 
Last edited:
You must log in or register to reply here.

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Quick Navigation

Home Get Subscription Wiki Downloads Proxmox Customer Portal About

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!
Community platform by XenForo® © 2010-2024 XenForo Ltd.
Top Bottom