Avamar：如何为存储在 Data Domain 上的备份生成后端容量报告

Summary: 本文介绍 Avamar 如何为备份存储在 Data Domain 上的客户端实施后端容量报告。

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Instructions

存储在 Data Domain 上的客户端备份的后端容量报告是 Avamar 版本 7.3 中引入的一项新功能。
 

提醒：需要 Data Domain 5.7.0.0-496793 或更高版本。

的后端容量报告 GSAN（自 Avamar 版本 5.x 起提供）使用复制技术来计算重复数据消除后的备份大小。

为了报告存储在 Data Domain 上的客户端备份，DDOS 使用物理容量测量 （PCM） 或物理容量报告 （PCR） 功能。这允许通过目录树、目录树集合、MTree 或 MTree 集合来计算准确的磁盘使用情况。以下文章提供了详细说明：Data Domain：物理容量测量或物理容量报告常见问题

以下步骤使用 Management Console Server （MCS） 日志记录概述了 Avamar 如何使用 PCM 功能获取存储在 Data Domain 上的备份的后端容量报告信息：
  1. 启动后端容量报告时，MCS 服务会生成一个线程来运行报告：
03/31-13:17:01.00044 com.avamar.mc.rpt.job.ReportManager$1.run 
INFO: Started: com.avamar.mc.rpt.job.BackendCapacityDDReportJob@a471a6aa (1 running, 0 waiting) 

03/31-13:17:01.00045 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.run 
FINE: Running report <REPORT_NAME>
  1. MCS 检索报告中选定客户端或域的备份：
03/31-13:17:01.00045 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.publishStatus 
FINE: Fetching backups 

03/31-13:17:01.00119 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.fetchBackups 
FINE: Including domain: /clients/ 

03/31-13:17:01.00203 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.getClientBackups 
FINE: Including client: /clients/test.local.domain (23 backups)(test.local.domain)
  1. 收集完所有备份后，MC 会调用 Data Domain 的 REST API 以创建压缩度量：
03/31-13:17:13.00602 com.avamar.mc.rpt.bcrdd.CompressionMeasurement.<init> 
FINE: Creating URI: https://dd.local.domain:3009/rest/v1.0/dd-systems/d57a21caedf6d961%3Ac514d833dda5914e/stats/compression/measurements 
03/31-13:17:13.00602 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.publishStatus 
FINE: Created measurement for: dd.local.domain

测量包括所有客户端的备份：

03/31-13:17:13.00605 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.publishStatus 
FINE: Submitting measurement 1 of 1 

03/31-13:17:13.00606 com.avamar.mc.rpt.bcrdd.CompressionMeasurement.createMeasurement 
FINE: Description: 1490959033606 
Include Paths: 
/data/col1/avamar-1445355479/cur/f513b4cb897b43b3ffe8e2d9cec7788b92ca4ce1/1D2A998DFA45A2E 
/data/col1/avamar-1445355479/cur/f513b4cb897b43b3ffe8e2d9cec7788b92ca4ce1/1D2A8D1E01CBD2E 
/data/col1/avamar-1445355479/cur/f513b4cb897b43b3ffe8e2d9cec7788b92ca4ce1/1D2A80883413D1A 

03/31-13:17:19.00385 sun.net.www.protocol.http.HttpURLConnection.getInputStream0 
FINE: sun.net.www.MessageHeader@7736bdf27 pairs: {null: HTTP/1.1 201 Created}{Content-Type: application/json}{Content-Length: 314}{X-DD-AUTH-TOKEN: c6cd873bdaf7c3861d60ba35e10eab189}{X-DD-UUID: d57a21caedf6d961:c514d833dda5914e}{Cache-Control: no-cache}{Server: Data Domain OS 5.7.2.10-541351} 03/31-13:17:19.00385 com.avamar.mc.rpt.bcrdd.CompressionMeasurement.createMeasurement 
INFO: Measurement 120259084337 created 

03/31-13:17:21.00423 sun.net.www.protocol.http.HttpURLConnection.getInputStream0 
FINE: sun.net.www.MessageHeader@799be7fe7 pairs: {null: HTTP/1.1 200 OK}{Content-Type: application/json}{Content-Length: 314}{X-DD-AUTH-TOKEN: c6cd873bdaf7c3861d60ba35e10eab189}{X-DD-UUID: d57a21caedf6d961:c514d833dda5914e}{Cache-Control: no-cache}{Server: Data Domain OS 5.7.2.10-541351} 
03/31-13:17:21.00423 com.avamar.mc.rpt.bcrdd.CompressionMeasurement.addExtraPaths 
INFO: Paths added/excluded for measurement 120259084337
  1. 该报告可能需要几分钟才能完成，在此期间，MCS 会继续从 Data Domain 监视测量结果：
03/31-13:21:12.00658 sun.net.www.protocol.http.HttpURLConnection.getInputStream0 
FINE: sun.net.www.MessageHeader@1017660a7 pairs: {null: HTTP/1.1 200 OK}{Content-Type: application/json}{Content-Length: 553}{X-DD-AUTH-TOKEN: c6cd873bdaf7c3861d60ba35e10eab189}{X-DD-UUID: d57a21caedf6d961:c514d833dda5914e}{Cache-Control: no-cache}{Server: Data Domain OS 5.7.2.10-541351} 
03/31-13:21:12.00658 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.publishStatus FINE: Monitoring 1 measurements
  1. 在 Data Domain 上完成测量后，MC 将收到获取的数据：
03/31-13:22:18.00806 sun.net.www.protocol.http.HttpURLConnection.getInputStream0 
FINE: sun.net.www.MessageHeader@6e4fa4fb7 pairs: {null: HTTP/1.1 200 OK}{Content-Type: application/json}{Content-Length: 984}{X-DD-AUTH-TOKEN: c6cd873bdaf7c3861d60ba35e10eab189}{X-DD-UUID: d57a21caedf6d961:c514d833dda5914e}{Cache-Control: no-cache}{Server: Data Domain OS 5.7.2.10-541351} 
03/31-13:22:18.00807 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.monitor FINE: Finished measurement: dd.local.domain (dd.local.domain) 
Error: 
Backups: 191 
measurement_id: 120259084337 
finish_epoch: 1490959338 
creation_epoch: 1490959033 
link: [rel: self, href: /rest/v1.0/dd-systems/d57a21caedf6d961%3Ac514d833dda5914e/stats/compression/measurements/120259084337, rel: related, href: /rest/v1.0/dd-systems/d57a21caedf6d961%3Ac514d833dda5914e/stats/compression/measurements] 
state: finished 
paths_not_found_count: 0 
snapshot_epoch: 1490959135 
files_seen_count: 573 
id: 120259084337 
user_description: DDBoostUser 
start_epoch: 1490959277 
priority: normal 
extended_retention_tier: total_comp_factor: 0.0, local_comp_factor: 0.0, pre_comp_bytes: 0, post_comp_bytes: 0, global_comp_factor: 0.0 measurement_description: 1490959033606 
percent_done: 100 
active_tier: total_comp_factor: 172.97872552006913, local_comp_factor: 1.386, pre_comp_bytes: 51388185187694, post_comp_bytes: 297078065717, global_comp_factor: 124.80427526700515 
03/31-13:22:18.00807 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.publishStatus FINE: Monitoring 0 measurements
  1. MCS 完成作业并将报告数据插入到 report_history MCS 数据库 （MCDB） 的表。这允许从 Avamar UI 查看报告：
03/31-13:22:18.00814 com.avamar.mc.rpt.job.BackendCapacityDDReportJob.run FINE: Finished (317769 ms) 
03/31-13:22:18.00814 com.avamar.mc.rpt.job.ReportManager$1.run INFO: Finished: com.avamar.mc.rpt.job.BackendCapacityDDReportJob@a471a6aa
 
提醒：Data Domain 后端容量报告不包括保存到 Avamar 的备份 GSAN 存储。同样，以下项的后端容量报告 GSAN 不包括 Data Domain 上的备份。

Additional Information

参考资料：

Affected Products

Avamar, Avamar Server
Article Properties
Article Number: 000019179
Article Type: How To
Last Modified: 28 Sept 2025
Version:  7
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