Avamar：Data Domain：由于 AVE 部署不正确，无法创建检查点备份

AVE 部署不正确

• 无法创建检查点备份
• 所有维护作业均已成功完成
• 已确认 Av 和 DD 之间的连接

  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.

• 在 cpbackup 日志中针对某个数据分区上某个 cp 返回的错误：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.

• 查看报告的 cpbackup 失败事件

  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>

• 检查其中一个受影响数据分区的 cpbackup 日志文件，发现 data06 和 data07 的 cpbackup 日志中由于 diskfull 而导致服务器为只读的消息

  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))

• 运行 fs-perc 显示 data01 与其他分区之间的很大差异：

  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"

• 运行 df -h 显示 data01 的大小比其他分区小，但已满 37%，而其他分区已满 9%

  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

分区 /data01 为 250G，而其他分区为 1 TB，因此其利用率高于其他分区的原因。我们不支持在同一 AVE 中具有不同的数据分区大小。

由于这是一个 4TB AVE，因此应该有六个数据分区（每个分区 1 TB）;来源： https://www.delltechnologies.com/asset/en-us/products/data-protection/technical-support/docu91853.pdf （“AVE 虚拟磁盘要求”，第 17 页）

同一页面中有一条注释：“
由于 AVE .ova 安装会创建三个 250 GB 存储分区以及作系统磁盘，因此在安装时需要大约 900 GB 的可用磁盘空间。但是，AVE .ovf 安装不会在安装过程中创建存储分区。因此，在安装时作系统磁盘只需要足够的磁盘空间，并且可以在其他数据存储上创建后续存储分区”

由于此 AVE 有 7 个分区（其中一个分区为 250 GB，其余分区为 1 TB），而不是 6 个分区（1 TB），因此 AVE 部署错误。

在这种情况下，客户必须部署新的 4 TB AVE（具有 6 个 1 TB 数据分区，无 250 GB 分区）。然后将其所有数据复制到新系统。

新的部署将由当地团队和专业服务部门负责。