Avamar: Data Domain: Kan geen checkpointback-up maken vanwege onjuiste implementatie van de AVE

Summary: Kan geen back-up van een controlestation maken vanwege onjuiste implementatie van de AVE.

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Symptoms

Onjuiste AVE-implementatie

  • Kan geen back-up van een checkpoint maken
  • Alle onderhoudsklussen zijn succesvol afgerond
  • Bevestigde verbinding tussen Av en DD
    mccli event show | grep -i "failed to create"
    71546 2019-02-21 09:09:31 CET ERROR       31034 SYSTEM      PROCESS  /                          Failed to create a checkpoint backup.
    71229 2019-02-20 09:09:22 CET ERROR       31034 SYSTEM      PROCESS  /                          Failed to create a checkpoint backup.
    70926 2019-02-19 09:26:29 CET ERROR       31034 SYSTEM      PROCESS  /                          Failed to create a checkpoint backup.
    70340 2019-02-18 09:10:41 CET ERROR       31034 SYSTEM      PROCESS  /                          Failed to create a checkpoint backup.
  • Fouten geretourneerd in het cpbackup-logboek voor een bepaalde cp op een bepaalde datapartitie: data07
    admin@*****:/usr/local/avamar/var/client/>: less cpbackup-cp.20190221080716-28111.log
    .
    .
    [Thu Feb 21 09:09:17 2019] Backup data07 finished in 00:00:01.
    [Thu Feb 21 09:09:17 2019] Cleanup backup for data07
    [Thu Feb 21 09:09:17 2019] Backup data07 returned with exit code 158
    [Thu Feb 21 09:09:17 2019] Execute: ps -o pid,ppid,cmd --no-headers --ppid 28226 || true
    > [Thu Feb 21 09:09:17 2019] Killing all child processes: 28226
    > [Thu Feb 21 09:09:17 2019] Killing PIDs (28226) with signal 15.
    [Thu Feb 21 09:09:17 2019] Sleeping for 10 seconds after killing processes...
    [Thu Feb 21 09:09:27 2019] Execute: ps -o pid,ppid,cmd --noheaders --pid 28226 || true
    [Thu Feb 21 09:09:27 2019] Execute output:
    28226 28111 [sh] <defunct>
    .
    .
    [Thu Feb 21 09:09:28 2019] Backup data06 finished in 00:00:12.
    [Thu Feb 21 09:09:28 2019] Cleanup backup for data06
    [Thu Feb 21 09:09:28 2019] Backup data06 returned with exit code 158
    [Thu Feb 21 09:09:28 2019] Finished backing up files in 00:00:12.
    [Thu Feb 21 09:09:28 2019] Execute: /usr/local/avamar/bin/mccli event publish --code=31034 --attribute="checkpoint" --value="
    cp.20190221080716" --attribute="logfile" --value="/space/avamar/var/client/cpbackup-cp.20190221080716-28111.log" --attribute=
    "cache" --value="OK" --attribute="data06 elapsed" --value="00:00:12" --attribute="data06 fail" --value="Exit code: 158. Signa
    l: 0." --attribute="data07 elapsed" --value="00:00:01" --attribute="data07 fail" --value="Exit code: 158. Signal: 0." --attri
    bute="max ddr streams" --value="6" --attribute="max parallel avtars" --value="2" --attribute="parallel running avtars" --valu
    e="2" --attribute="pass thru flags" --value="--id=root --ap=******** --hfsaddr=***** --hfsport=27000" --attribute="total
    elapsed time" --value="00:00:12" --attribute="volumes" --value="data01 data02 data03 data04 data05 data06 data07"
     
    [Thu Mar 22 09:10:03 2018] Execute: /usr/local/avamar/bin/mccli event publish --code=31034 --attribute="checkpoint" --value="cp.20180322150523" --attribute="logfile" --value="/data01/avamar/var/cpbackup-cp.20180322150523-34518.log" 
    --attribute="abort reason" --value="Flag --max-ddr-streams must be greater than zero" --attribute="cache" --value="OK" --attribute="max ddr streams" --value="0" --attribute="max parallel avtars" --value="2" --attribute="pass thru flags" --value="--id=root --ap=******** --hfsaddr=avamar" --attribute="volumes" --value="data01 data02 data03"
     abort reason        Flag --max-ddr-streams must be greater than zero
    [Thu Feb 21 09:09:31 2019] Execute output:
    0,23000,CLI command completed successfully.
     Attribute               Value
     ----------------------- -------------------------------------------------------------
     checkpoint              cp.20190221080716
     cache                   OK
     parallel running avtars 2
     logfile                 /space/avamar/var/client/cpbackup-cp.20190221080716-28111.log
     max ddr streams         6
     pass thru flags         --id=root --ap=******** --hfsaddr=***** --hfsport=27000
     volumes                 data01 data02 data03 data04 data05 data06 data07
     data06 fail             Exit code: 158. Signal: 0.
     total elapsed time      00:00:12
     data07 elapsed          00:00:01
     max parallel avtars     2
     data06 elapsed          00:00:12
     data07 fail             Exit code: 158. Signal: 0.
  • Kijken naar de gebeurtenis die is gemeld voor het mislukken van de cpbackup
    mccli event show --id=71546
    0,23000,CLI command completed successfully.
    Attribute   Value                                                                                                            
    ----------- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    ID          71546
    Date        2019-02-21 09:09:31 CET
    Type        ERROR
    Code        31034
    Category    SYSTEM
    Severity    PROCESS
    Domain      /
    Summary     Failed to create a checkpoint backup.
    SW Source   MCS:BS
    For Whom    All Users
    HW Source   *****
    Description Failed to create a checkpoint backup.
    Remedy      No action required.
    Notes       N/A
    Data        <data><entry key="checkpoint" type="text" value="cp.20190221080716" version="1"/><entry key="cache" type="text" value="OK" version="1"/><entry key="parallel running avtars" type="text" value="2" version="1"/><entry key="logfile" type="text" value="/space/avamar/var/client/cpbackup-cp.20190221080716-28111.log" version="1"/><entry key="max ddr streams" type="text" value="6" version="1"/><entry key="pass thru flags" type="text" value="--id=root --ap=******** --hfsaddr=***** --hfsport=27000" version="1"/><entry key="volumes" type="text" value="data01 data02 data03 data04 data05 data06 data07" version="1"/><entry key="requestor" type="xml" value="&lt;requestor domain=&quot;/&quot; product=&quot;NONE&quot; role=&quot;Administrator&quot; user=&quot;MCUser&quot;/&gt;" version=""/><entry key="data06 fail" type="text" value="Exit code: 158. Signal: 0." version="1"/><entry key="total elapsed time" type="text" value="00:00:12" version="1"/><entry key="data07 elapsed" type="text" value="00:00:01" version="1"/><entry key="max parallel avtars" type="text" value="2" version="1"/><entry key="data06 elapsed" type="text" value="00:00:12" version="1"/><entry key="data07 fail" type="text" value="Exit code: 158. Signal: 0." version="1"/></data>
  • Bij het controleren van het cpbackup-logbestand op een van de getroffen datapartities, werd een bericht gevonden dat de server alleen-lezen is vanwege diskfull in het cpbackup-logboek voor data06 en data07
    admin@*****:/usr/local/avamar/var/client/>: less cpbackup-cp.20190221080716-data06.log
    .
    .
    
    2019-02-21 09:09:16 avtar Info <5554>: Connecting to one node in each datacenter
    2019-02-21 09:09:16 avtar Info <5993>: - Connect: Connected to 172.27.7.3:29000, Priv=0, SSL Cipher=AES256-SHA
    2019-02-21 09:09:16 avtar Info <5993>: - Datacenter 0 has 1 nodes: Connected to 172.27.7.3:29000, Priv=0, SSL Cipher=AES256-SHA
    2019-02-21 09:09:16 avtar Info <42862>: - Server is in read-only mode due to diskfull
    2019-02-21 09:09:16 avtar Info <17972>: - Server is in Read-only mode.
    2019-02-21 09:09:16 avtar FATAL <8604>: Fatal server connection problem, aborting initialization. Verify correct server address and login credentials.
    2019-02-21 09:09:16 avtar FATAL <8941>: Fatal server connection problem, aborting initialization. Verify correct server address and login credentials.
    2019-02-21 09:09:16 avtar Info <6149>: Error summary: 2 errors: 8604, 8941
    2019-02-21 09:09:16 avtar Info <6645>: Not sending wrapup anywhere.
    2019-02-21 09:09:16 avtar Info <5314>: Command failed (2 errors, exit code 10008: cannot establish connection with server (possible network or DNS failure))
  • Het uitvoeren van fs-perc toont een groot verschil tussen data01 en de andere partities:
    avmaint nodelist |grep -i "fs-perc"
     fs-percent-full="37.0"
     fs-percent-full="8.8"
     fs-percent-full="8.7"
     fs-percent-full="8.7"
     fs-percent-full="8.8"
     fs-percent-full="8.7"
     fs-percent-full="8.7"
  • Bij het uitvoeren van df -h bleek dat data01 kleiner was dan andere partities, maar was 37% vol, terwijl de andere 9% waren
    df -h
    
    Filesystem      Size  Used Avail Use% Mounted on
    /dev/sda2        16G  5.0G   10G  34% /
    udev             18G  184K   18G   1% /dev
    tmpfs            18G     0   18G   0% /dev/shm
    /dev/sda1      1011M   91M  869M  10% /boot
    /dev/sda6       7.6G  287M  6.9G   4% /var
    /dev/sda8        62G   14G   45G  25% /space
    /dev/sdb1       250G   93G  158G  37% /data01
    /dev/sdc1       1.0T   90G  934G   9% /data02
    /dev/sdd1       1.0T   89G  935G   9% /data03
    /dev/sde1       1.0T   90G  935G   9% /data04
    /dev/sdf1       1.0T   91G  934G   9% /data05
    /dev/sdg1       1.0T   90G  935G   9% /data06
    /dev/sdh1       1.0T   90G  935G   9% /data07

 

Cause

Partitie /data01 is 250G, terwijl de andere 1 TB zijn, dus daarom is het gebruik hoger dan de andere. We ondersteunen het hebben van verschillende gegevenspartitiegroottes in dezelfde AVE.

Aangezien dit een AVE van 4 TB is, moeten er zes gegevenspartities zijn (elk 1 TB); bron: https://www.delltechnologies.com/asset/en-us/products/data-protection/technical-support/docu91853.pdf ("AVE virtual disk requirements", pagina 17)

Er staat een opmerking op dezelfde pagina:
"Omdat de AVE .ova-installatie drie opslagpartities van 250 GB samen met de OS-schijf maakt, is er bij de installatie ongeveer 900 GB vrije schijfruimte vereist. De AVE.ovf-installatie maakt tijdens de installatie echter geen opslagpartities. Daarom is er bij de installatie alleen voldoende schijfruimte voor de OS-schijf nodig en kunnen volgende storagepartities worden gemaakt op andere datastores"

Aangezien deze AVE zeven partities heeft (een van 250 GB en de rest 1 TB) in plaats van 6 van 1 TB, zou de AVE verkeerd worden geïmplementeerd.

 

Resolution

In dit geval moet de klant een nieuwe 4 TB AVE implementeren (met 6 x 1 TB datapartities, geen 250 GB partities). Repliceer vervolgens al hun data naar het nieuwe systeem.

 

Additional Information

De nieuwe implementatie zou de verantwoordelijkheid zijn van het lokale team en de professionele diensten.

 

Affected Products

Avamar

Products

Avamar, Avamar Server, Avamar Virtual Edition
Article Properties
Article Number: 000056258
Article Type: Solution
Last Modified: 11 Dec 2025
Version:  6
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