Avamar:由於 Data Domain 容量問題,檢查點失敗並出現結果MSG_ERR_DDR_ERROR

Summary: 資料收集中的 Data Domain (DD) 空間使用量已超過 100% 的閾值,導致 Avamar 檢查點失敗並發生MSG_ERR_DDR_ERROR。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

排定和手動檢查點都會因MSG_ERR_DDR_ERROR而失敗。

例如:

status.dpn
Mon Aug 19 13:33:53 WEST 2019  [AV-XXX] Mon Aug 19 12:33:53 2019 UTC (Initialized Wed Feb 11 12:42:51 2015 UTC)
Node   IP Address     Version   State   Runlevel  Srvr+Root+User Dis Suspend Load UsedMB Errlen  %Full   Percent Full and Stripe Status by Disk
0.0     10.xxx.x.xx  19.1.0-38  ONLINE fullaccess mhpu+0hpu+0hpu   1 false   0.3 0 31802 52675327  11.8%  12%(onl:4148) 11%(onl:4133) 11%(onl:4135) 11%(onl:4140)  11%(onl:4138) 11%(onl:4147)
Srvr+Root+User Modes = migrate + hfswriteable + persistwriteable + useraccntwriteable

System ID: XXXXXXXX@00:1E:67:87:C4:6B

All reported states=(ONLINE), runlevels=(fullaccess), modes=(mhpu+0hpu+0hpu)
System-Status: ok
Access-Status: full

Checkpoint failed with result MSG_ERR_DDR_ERROR : cp.20190819054530 started Mon Aug 19 06:45:31 2019 ended Mon Aug 19 06:58:24 2019, completed 24840 of 24841 stripes
Last GC: finished Mon Aug 19 05:21:35 2019 after 20m 58s >> recovered 71.89 MB (MSG_ERR_DDR_ERROR)
Last hfscheck failed with result MSG_ERR_DDR_ERROR : started Mon Aug 19 05:34:23
注意:如上例所示,這可能不僅限於檢查點。
 
 

Data Domain 記錄 (/usr/local/avamar/var/ddrmaintlogs/ddrmaint.log) 會報告「I/O 錯誤“:

grep -i Error /usr/local/avamar/var/ddrmaintlogs/ddrmaint.log|grep -v -i "Error not set"
Aug 19 05:15:50 av-XXX ddrmaint.bin[49665]: Error: <4710>Datadomain garbage collect operation failed.
Aug 19 05:34:18 av-XXX ddrmaint.bin[52434]: Warning: Calling DDR_CREATE_SNAPSHOT returned result code:5009 message:I/O error
Aug 19 05:34:18 av-XXX ddrmaint.bin[52434]: Error: cp-create::execute_create_checkpoint - Failed to create checkpoint for avamar-XXXXXXX to snapshot cp.20190819042140 on ddXXX, DDR result code: 5009, desc: I/O error
Aug 19 05:34:18 av-XXX ddrmaint.bin[52434]: Error: <4760>Datadomain checkpoint create operation failed.

Cause

Data Domain (DD) 空間已達到容量。

這可以通過執行以下操作來驗證:

1.連線至 Data Domain。使用 Avamar:如何視需要存取 Data Domain 系統作為參考。

2.檢查是否有任何警示:

alerts show current
Id      Post Time                  Severity   Class        Object          Message
-----   ------------------------   --------   ----------   -------------   ----------------------------------------------------------------------------
p0-87   Fri Aug 16 21:55:33 2019   CRITICAL   Filesystem   FilesysType=2   EVT-SPACE-00004: Space usage in Data Collection has exceeded 100% threshold.
-----   ------------------------   --------   ----------   -------------   ----------------------------------------------------------------------------
There is 1 active alert.
 

3.執行 "df" 命令:

df
Active Tier:
Resource           Size GiB   Used GiB   Avail GiB   Use%   Cleanable GiB*
----------------   --------   --------   ---------   ----   --------------
/data: pre-comp           -       15.1           -      -                -
/data: post-comp    30731.1    30608.8       122.3   100%             13.1
/ddvar                 49.1        8.7        37.9    19%                -
/ddvar/core           158.3        0.1       150.2     0%                -
----------------   --------   --------   ---------   ----   --------------
 * Estimated based on last cleaning of 2019/07/15 06:04:40.

Cloud Tier
Resource           Size GiB   Used GiB   Avail GiB   Use%   Cleanable GiB
----------------   --------   --------   ---------   ----   -------------
/data: pre-comp           -       19.0           -      -               -
/data: post-comp   33487.7*       20.4     33467.4     0%             0.0
----------------   --------   --------   ---------   ----   -------------
* Post-comp size is based on CLOUDTIER-CAPACITY license and might not be same as the cloud storage.

Total:
Resource           Size GiB   Used GiB   Avail GiB   Use%   Cleanable GiB
----------------   --------   --------   ---------   ----   -------------
/data: pre-comp           -       34.1           -      -               -
/data: post-comp    33829.9       36.4     33793.4     0%             0.0
/ddvar                 49.1        8.7        37.9    19%               -
/ddvar/core           158.3        0.1       150.2     0%               -
----------------   --------   --------   ---------   ----   -------------

Resolution

1.在 Data Domain 上:

一個。檢查檔案系統清理狀態:

filesys clean status 
 

輸出範例:

未執行清理:

Cleaning finished at 2019/08/19 21:37:46
 

正在執行清理:

Cleaning started at 2019/08/19 06:00:02: phase 3 of 6 (pre-enumeration)
  1.6% complete,     0 GiB free; time: phase  1:26:05, total  1:48:11
 

b.如果正在執行清理,請等待清理完成,然後使用 df 命令檢查容量。

c. 如果未執行清理,請檢查檔案系統清理排程:

filesys clean show schedule
 

範例輸出:

Filesystem cleaning is scheduled to run "Tue" at "0700".
 

d. 如果需要,請啟動手動文件系統清理,並使用”fileysys clean watch" 命令,如以下輸出所示。

filesys clean start
Cleaning started.  Use 'filesys clean watch' to monitor progress.
 
注意:如果在檔案系統清理之後問題仍然存在,請聯絡 Data Domain 檔案系統工程師以取得協助。
 
 

2.在 Avamar 上:

一個。解決 Data Domain 上的容量問題後,請執行手動檢查點:

mccli checkpoint create --override_maintenance_scheduler
注意:mccli 命令需要較長的時間才能完成,但包含管理主控台伺服器 (MCS) 備份 (亦即排清)。
 

b.監視直到完成,並驗證它是否成功。

c. 在下一個維護時段監控格線,以確認所有 Avamar 維護工作 (檢查點、檢查點驗證、 (hfscheck) 並且垃圾回收已成功完成。

Additional Information

如果在清理檔案系統後出現問題,則需要洽詢 Data Domain 檔案系統工程師。

Affected Products

Avamar

Products

Avamar, Avamar Server
Article Properties
Article Number: 000046232
Article Type: Solution
Last Modified: 23 Jul 2025
Version:  6
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