NetWorker：儘管來源損毀，但複製的儲存集仍錯誤地標示為有效

• A saveset 在備份期間有效，稍後會損毀。
• 複製已損毀的 saveset 完成但仍標記已複製 saveset 在媒體資料庫中有效。
• 受影響的 NetWorker 版本為 19.6.x、 19.7.x 和 9.8.x，以及 19.9.0.4 之前的版本。
• nsrclone 報告失敗，但 mminfo 顯示已複製的 saveset 具有有效標誌。

範例：

root@server:#  mminfo -q ssid=2557547202 -r "clonetime(22),sscreate(22),volume,pool,totalsize(2),sumflags,clflags,name"
      clone time            ss created      volume         pool        total fl clflg name
11/13/2022 04:52:34 PM 11/13/2022 04:52:34 PM VM040089     DUMPS_5WKS 31 GB cb  RMAN:HOT_F_DB_name_1.rman  <=== Backup valid but corrupted data

• 啟動 nsrclone 的腐敗者 saveset

root@server:# nsrclone -D9 -v -s nsr_server -b CLONE_5WKS -S 2557547202 >> clone_log.txt 2>&1 ; echo $?
1   <=== An error is correctly reported from the nsrclone command

• NetWorker 複製輸出記錄會報告 saveset 為無效

root@server:/$ tail -50 clone_log.txt
      forced volume location: SN_name;
          inactivity timeout: 180;
                      job id: 1104237;
                      manual: Yes;
               NSR operation: cloning;
                   save sets: \
...
11/22/22 17:29:08.948529 start_regular_clone for Regular type failed: Unable to start clone session: other clones exist for failed save set RMAN:HOT_F_DB_name_1.rman ssid=2557547202
 11/22/22 17:29:08.948586 Exiting process_this_snode for Regular clone
11/22/22 17:29:08.948603 Function for Regular clone returned: Unable to start clone session: other clones exist for failed save set RMAN:HOT_F_DB_name_1.rman ssid=2557547202
 162560:nsrclone: Unable to start clone session: other clones exist for failed save set RMAN:HOT_F_DB_name_1.rman ssid=2557547202
...
198620:nsrclone: Some of the clones failed
198620:nsrclone: Some of the clones failed
11/22/22 17:29:08.953903 alldone(): ENTER
...
         completion severity: 50;
           completion status: failed;
...
11/22/22 17:29:08.954582 nsrclone, alldone(): EXIT

• Daemon.log 從 NetWorker 伺服器報告錯誤：

181147 11/22/2022 05:29:08 PM  ansrd NSR critical Unable to clone save sets for nsr_prd: other clones exist for failed save set RMAN:HOT_F_DB_name_1.rman ssid=2557547202
71193 11/22/2022 05:29:08 PM  nsrd NSR info Error Alert: Clone operation failed with error: 'Some of the clones failed'.

• 可使用 Daemon.raw 從儲存節點報告錯誤：

198625 22/11/2022 5:29:04 PM  2 0 11 2180355872 29752 0 SN_name nsrmmd#43 NSR warning Reading volume 'VM040089' failed: 'Bad file descriptor' ^M
198625 22/11/2022 5:29:08 PM  2 0 11 2180355872 29752 0 SN_name nsrmmd#43 NSR warning Reading volume 'VM040089' failed: 'Bad file descriptor' ^M

• 複製完成後，您可以看到 saveset 中指定如下：

root@server:/# mminfo -q ssid=2557547202 -r "clonetime(22),sscreate(22),volume,pool,totalsize(2),sumflags,clflags,name"
      clone time            ss created      volume         pool        total fl clflg name
11/22/2022 05:13:30 PM 11/13/2022 04:52:34 PM VC00500U     CLONE_DUMPS_5WKS 31 GB hb  RMAN:HOT_F_DB_name_1.rman  <= Clone is considered as VALID
11/22/2022 05:13:30 PM 11/13/2022 04:52:34 PM VC0250BO     CLONE_DUMPS_5WKS 31 GB tb  RMAN:HOT_F_DB_name_1.rman     <= Clone is considered as VALID
11/13/2022 04:52:34 PM 11/13/2022 04:52:34 PM VM040089     DUMPS_CIBOS_5WKS 31 GB cb s RMAN:HOT_F_DB_name_1.rman     <= saveset source has been newly set as suspect

NetWorker 錯誤地標記了複製 saveset 即使來源有效 saveset 已損毀，且複製作業失敗。此行為是由於克隆驗證邏輯中的缺陷造成的。

以下 NetWorker 版本可解決此問題：

• 19.9.0.5
• 19.10.0.2
• 19.11.x 以上的所有版本

升級至上述版本之一，以確保損毀 savesets 在克隆過程中被正確標記為無效。