Container backup snapshot fails

taenzerme

Renowned Member
Sep 18, 2013
35
0
71
Bonn, Germany
www.taenzer.de
First of all, thanks for the great product. I'm running into a problem with our first container vm (all others are kvm based) where snapshot backups on a regular volume (not NFS) fail. I did a search on the forums for the mode failure but all other posts had some different configurations not matching ours (i.e. we did not change any defaults that could cause this and the CT is not running on a NFS share).

Any help how to get snapshots working is really appreciated.

Here all configuration and logging details you might need:

Code:
INFO: starting new backup job: vzdump 201 --remove 0 --mode snapshot --compress lzo --storage storage1 --node vmhost1
INFO: Starting Backup of VM 201 (openvz)
INFO: CTID 201 exist mounted running
INFO: status = running
INFO: mode failure - unable to detect lvm volume group
INFO: trying 'suspend' mode instead
INFO: backup mode: suspend
INFO: ionice priority: 7
INFO: starting first sync /mnt/ssdraid/private/201/ to /mnt/pve/storage1/dump/vzdump-openvz-201-2015_01_24-13_07_39.tmp
INFO: Number of files: 23869
INFO: Number of files transferred: 18439
INFO: Total file size: 664082539 bytes
INFO: Total transferred file size: 663612639 bytes
INFO: Literal data: 663612639 bytes
INFO: Matched data: 0 bytes
INFO: File list size: 537978
INFO: File list generation time: 0.001 seconds
INFO: File list transfer time: 0.000 seconds
INFO: Total bytes sent: 665030106
INFO: Total bytes received: 368804
INFO: sent 665030106 bytes received 368804 bytes 12437362.80 bytes/sec
INFO: total size is 664082539 speedup is 1.00
INFO: first sync finished (53 seconds)
INFO: suspend vm
INFO: Setting up checkpoint...
INFO: suspend...
INFO: get context...
INFO: Checkpointing completed successfully
INFO: starting final sync /mnt/ssdraid/private/201/ to /mnt/pve/storage1/dump/vzdump-openvz-201-2015_01_24-13_07_39.tmp
INFO: Number of files: 23869
INFO: Number of files transferred: 1
INFO: Total file size: 664082551 bytes
INFO: Total transferred file size: 937 bytes
INFO: Literal data: 237 bytes
INFO: Matched data: 700 bytes
INFO: File list size: 537978
INFO: File list generation time: 0.001 seconds
INFO: File list transfer time: 0.000 seconds
INFO: Total bytes sent: 540189
INFO: Total bytes received: 1957
INFO: sent 540189 bytes received 1957 bytes 72286.13 bytes/sec
INFO: total size is 664082551 speedup is 1224.91
INFO: final sync finished (7 seconds)
INFO: resume vm
INFO: Resuming...
INFO: vm is online again after 7 seconds
INFO: creating archive '/mnt/pve/storage1/dump/vzdump-openvz-201-2015_01_24-13_07_39.tar.lzo'
INFO: Total bytes written: 680591360 (650MiB, 11MiB/s)
INFO: archive file size: 334MB
INFO: Finished Backup of VM 201 (00:02:18)
INFO: Backup job finished successfully
TASK OK

df -h is looking fine so far:

Code:
root@vmhost1:~# df -h
Filesystem                    Size  Used Avail Use% Mounted on
udev                           10M     0   10M   0% /dev
tmpfs                         6.3G  412K  6.3G   1% /run
/dev/mapper/pve-root           95G  1.6G   89G   2% /
tmpfs                         5.0M     0  5.0M   0% /run/lock
tmpfs                          13G   53M   13G   1% /run/shm
/dev/mapper/pve-data          1.7T  109G  1.6T   7% /var/lib/vz
/dev/sda2                     494M   81M  388M  18% /boot
/dev/sdb1                     470G  146G  301G  33% /mnt/ssdraid
/dev/fuse                      30M   44K   30M   1% /etc/pve
192.168.100.251:/volume1/vms  9.1T  2.5T  6.6T  28% /mnt/pve/storage1
/mnt/ssdraid/private/201       50G  691M   50G   2% /var/lib/vz/root/201
tmpfs                         103M   36K  103M   1% /var/lib/vz/root/201/run
tmpfs                         5.0M     0  5.0M   0% /var/lib/vz/root/201/run/lock
tmpfs                         410M     0  410M   0% /var/lib/vz/root/201/run/shm

pvdisplay:

Code:
  --- Physical volume ---
  PV Name               /dev/sda3
  VG Name               pve
  PV Size               1.82 TiB / not usable 3.98 MiB
  Allocatable           yes 
  PE Size               4.00 MiB
  Total PE              476707
  Free PE               4095
  Allocated PE          472612
  PV UUID               hlQC95-5T3B-Ttse-rWzc-In9S-4Iy8-ift0ck

vgdisplay:

Code:
  --- Volume group ---
  VG Name               pve
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  32
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               1.82 TiB
  PE Size               4.00 MiB
  Total PE              476707
  Alloc PE / Size       472612 / 1.80 TiB
  Free  PE / Size       4095 / 16.00 GiB
  VG UUID               Dp1ReU-8zbQ-6bLy-zoM8-R1fl-dQHu-qpd3qz

lvdisplay:

Code:
  --- Logical volume ---
  LV Path                /dev/pve/swap
  LV Name                swap
  VG Name                pve
  LV UUID                Qcejfv-2xqD-nsRy-fQM0-AuSa-6uyO-tt7cOL
  LV Write Access        read/write
  LV Creation host, time proxmox, 2014-09-22 23:52:16 +0200
  LV Status              available
  # open                 1
  LV Size                62.00 GiB
  Current LE             15872
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1
   
  --- Logical volume ---
  LV Path                /dev/pve/root
  LV Name                root
  VG Name                pve
  LV UUID                BNH5WT-FiU8-UL3w-kjeR-zjEM-MCB2-l0r5DZ
  LV Write Access        read/write
  LV Creation host, time proxmox, 2014-09-22 23:52:17 +0200
  LV Status              available
  # open                 1
  LV Size                96.00 GiB
  Current LE             24576
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
   
  --- Logical volume ---
  LV Path                /dev/pve/data
  LV Name                data
  VG Name                pve
  LV UUID                DJUdaN-DFfU-BBFw-xYhm-E2Xu-iA6o-i7zXfO
  LV Write Access        read/write
  LV Creation host, time proxmox, 2014-09-22 23:52:17 +0200
  LV Status              available
  # open                 1
  LV Size                1.65 TiB
  Current LE             432164
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2

config:

Code:
dir: local
    path /var/lib/vz
    shared
    content images,iso,vztmpl,backup,rootdir
    maxfiles 5

nfs: storage1
    path /mnt/pve/storage1
    server 192.168.100.251
    export /volume1/vms
    options vers=3
    content images,iso,vztmpl,rootdir,backup
    maxfiles 5

dir: ssdraid
    path /mnt/ssdraid
    content images,iso,vztmpl,backup,rootdir
    maxfiles 1
    nodes vmhost1,vmhost2

vm config:

Code:
root@vmhost1:~# cat /etc/pve/openvz/201.conf
ONBOOT="yes"

PHYSPAGES="0:1024M"
SWAPPAGES="0:1024M"
KMEMSIZE="465M:512M"
DCACHESIZE="232M:256M"
LOCKEDPAGES="512M"
PRIVVMPAGES="unlimited"
SHMPAGES="unlimited"
NUMPROC="unlimited"
VMGUARPAGES="0:unlimited"
OOMGUARPAGES="0:unlimited"
NUMTCPSOCK="unlimited"
NUMFLOCK="unlimited"
NUMPTY="unlimited"
NUMSIGINFO="unlimited"
TCPSNDBUF="unlimited"
TCPRCVBUF="unlimited"
OTHERSOCKBUF="unlimited"
DGRAMRCVBUF="unlimited"
NUMOTHERSOCK="unlimited"
NUMFILE="unlimited"
NUMIPTENT="unlimited"

# Disk quota parameters (in form of softlimit:hardlimit)
DISKSPACE="50G:55G"
DISKINODES="10000000:11000000"
QUOTATIME="0"
QUOTAUGIDLIMIT="0"

# CPU fair scheduler parameter
CPUUNITS="1000"
CPUS="2"
HOSTNAME="dbsql.artway.de"
SEARCHDOMAIN="artway.de"
NAMESERVER="8.8.8.8 4.4.4.4"
NETIF="ifname=eth0,bridge=vmbr0,mac=AE:FE:A6:10:0B:0C,host_ifname=veth201.0,host_mac=5A:0F:DF:2C:BB:03;ifname=eth1,bridge=vmbr1,mac=D2:EA:43:44:AF:52,host_ifname=veth201.1,host_mac=4E:27:56:AF:B4:D0"
VE_ROOT="/var/lib/vz/root/$VEID"
VE_PRIVATE="/mnt/ssdraid/private/201"
OSTEMPLATE="debian-7.0-standard_7.0-2_amd64.tar.gz"

lsblk:

Code:
root@vmhost1:~# lsblk
NAME                MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                   8:0    0   1.8T  0 disk 
├─sda1                8:1    0     1M  0 part 
├─sda2                8:2    0   510M  0 part /boot
└─sda3                8:3    0   1.8T  0 part 
  ├─pve-root (dm-0) 253:0    0    96G  0 lvm  /
  ├─pve-swap (dm-1) 253:1    0    62G  0 lvm  [SWAP]
  └─pve-data (dm-2) 253:2    0   1.7T  0 lvm  /var/lib/vz
sdb                   8:16   0 476.9G  0 disk 
└─sdb1                8:17   0 476.9G  0 part /mnt/ssdraid
sr0                  11:0    1  1024M  0 rom

Did I mess up setting up the ssdraid volume somewhere?

Sebastian