Standalone backup agents for Linux and Unix workloads on-premises or in the public cloud
nghh
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Snapshot overflow

Post by nghh »

Hi,

we have CentOS server with LVM and try to backup it with Veeam for Linux. When the backup is nearly completed we get the following error message:

Code: Select all

2016-07-18 19:01:39 [error] Snapshot overflow.
2016-07-18 19:01:39 [error] Failed to perform backup
Output of df -h:

Code: Select all

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_xxx-lv_root
                      242G  110G  120G  48% /
tmpfs                 3,9G     0  3,9G   0% /dev/shm
/dev/sda1             485M  139M  321M  31% /boot
Any idea what "Snapshot overflow" exactly means? Thanks a lot :-)

Gostev
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Re: Snapshot overflow

Post by Gostev »

Hi, it means there were lots of write activity on the protected computer during backup, which filled all available space in the snapshot file. In this beta, snapshot file is preallocated file of a few GB in size (don't remember how much). The release version will support dynamic snapshot file growth though. Thanks!

nghh
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Re: Snapshot overflow

Post by nghh »

Thanks a lot for your quick reply. Is it possible to modify the size of snapshot file in this beta version?

Gostev
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Re: Snapshot overflow

Post by Gostev » 1 person likes this post

I don't think so, but let's wait for Pavel to confirm.

PTide
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Re: Snapshot overflow

Post by PTide » 1 person likes this post

Hi,

Please make sure that the set of volumes that you backup does not include the destination volume, i.e. the entire machine backup should be targeted to a shared folder. If you already meet that requirement please check you forum inbox - I've sent you a PM describing how to set snapshot size. Also please archive and share the /var/log/veeam directory so we can check at what snapshot size did the job fail.

Thanks.

andreiw
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Re: Snapshot overflow

Post by andreiw »

Hello PTide,

I'm having the same issue, it's a development zabbix server that's pulling monitoring telemetry from 40+ servers (100 or so values per second). Backup fails around 30% with snapshot overflow. I was going to test turning off all the services and trying again but if there's a way I can expand the snapshot size I'd love to try it out if you don't mind giving me the option. If not that's fine I'll wait for dynamic snaps to come out.

Thanks,

Andrei

SPart
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Re: Snapshot overflow

Post by SPart »

The same problem happens here.
The size of the disk we need to backup is 1 TB

PTide
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Re: Snapshot overflow

Post by PTide »

Hi,
The same problem happens here. The size of the disk we need to backup is 1 TB
Sent you instructions via PM.

Thanks

Nettkroken
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Re: Snapshot overflow

Post by Nettkroken »

I also have this problem, can I get the instructions?

PTide
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Re: Snapshot overflow

Post by PTide »

Hi,

Sent you via PM

boatmn810
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Re: Snapshot overflow

Post by boatmn810 »

Can I get that PM with the instructions as well ?

PTide
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Re: Snapshot overflow

Post by PTide »

Hi,

Sure, check your PM.

marcinbojko
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Re: Snapshot overflow

Post by marcinbojko »

I would like to have one to, same problem.

PTide
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Re: Snapshot overflow

Post by PTide »

Hi,

I sent you instructions. Could you please provide some details about your job settings and the server configuration?

Thanks

marcinbojko
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Re: Snapshot overflow

Post by marcinbojko »

Thanks, looks good.
Works ;)

iulian_badea
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Re: Snapshot overflow

Post by iulian_badea »

Can I get that PM with the instructions as well please?

Merz-Akademie
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Re: Snapshot overflow

Post by Merz-Akademie »

Hello,

please send me the instructions too. We are facing the same problem, and any help would be greatly apprecated.

thanks in advance.

greetings
Sebastian from Merz Akademie

zeever
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Re: Snapshot overflow

Post by zeever »

Hello,

please send me these instructions too.
I have the same issue.

Thank you!

Best regards,
Alex

Achelon
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Re: Snapshot overflow

Post by Achelon »

Hi,

Same issue here.
I would be appreciate for this solution too.

Thanks in advance !
Robert

AfterDarkRJ
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Re: Snapshot overflow

Post by AfterDarkRJ »

I also have this problem, can I get the instructions?

b1o
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Re: Snapshot overflow

Post by b1o »

Hi,
just read that and have the same pb.
could you please send me those instructions ?

thanks.

juiced
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Re: Snapshot overflow

Post by juiced »

just switch to the released version of the agent and i'm also running into that snapshot overflow message
Can i get that PM as well.

PTide
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Re: Snapshot overflow

Post by PTide »

Could you please describe job settings, target settings and the server that you are using? Has the job attempted retries?

Thanks

b1o
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Re: Snapshot overflow

Post by b1o »

Hi,

I have installed the release on Centos 6.7
It seems to work until this:

Code: Select all

09:05:34        [error] Backing up vg_gocentreon03 109.0 GB at 21.4 MB/s (69%)                                                                                                                                         01:27:12
      10:33:00        [error] Failed to perform backup
      10:33:00        [error] No space for snapshot
      10:33:00        [error] No space for snapshot

Thanks,

nielsengelen
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Re: Snapshot overflow

Post by nielsengelen »

Can you post the layout of df -h? Are you performing a full backup or volume based?
https://foonet.be

b1o
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Re: Snapshot overflow

Post by b1o »

Here it is

Code: Select all

[root@gocentreon03 ~]# df -h
Filesystem                                                               Size  Used Avail Use% Mounted on

/dev/mapper/vg_gocentreon03-lv_root                                      50G  7,9G   39G  17% /

tmpfs                                                                    7,8G   68K  7,8G   1% /dev/shm

/dev/sda1                                                                477M   76M  376M  17% /boot

/dev/mapper/vg_gocentreon03-lv_centreon                                  79G   33G   43G  44% /var/lib/centreon

/dev/mapper/vg_gocentreon03-lv_mysql                                     146G  102G   37G  74% /var/lib/mysql

//shr_sav_bdd/sav_bdd$/SQL/Centreon                                      2,3T  1,9T  335G  86% /mnt/SAV_BDD_centreon

//mlssrv20/LOG-SAV-BANDE                                                 50G   46G  3,5G  93% /mnt/Log_MLSSRV20

192.168.25.20:/etc/httpd/conf.d                                          19G   15G  3,4G  82% /mnt/point_de_montage_nfs_mlsgceweb06
It's a full backup, as recommended.

PTide
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Re: Snapshot overflow

Post by PTide »

Please provide VAL logs (use 'M' key on the main screen).

Thank you

b1o
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Re: Snapshot overflow

Post by b1o »

How can I send/post this tar.gz file ?

PTide
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Re: Snapshot overflow

Post by PTide »

You can use dropbox or you can open a support case. I suggest you to stick with the latter - you'll need to have a case ID in order to obtain a fix should one be available.

Thank you.

b1o
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Re: Snapshot overflow

Post by b1o »

FYI
Case #02015519

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