Appliance PowerProtect DM5500: UPGRADE_PRECHECK: Impossibile caricare il pacchetto di aggiornamento di PPDM

Quando si tenta di aggiornare l'appliance PowerProtect Data Manager, il processo di verifica preliminare dell'aggiornamento può avere esito negativo con il seguente errore:

26 Oct 2023 11:48:20  UTC ERROR [workflow-UPGRADE_PRECHECK_WF_D261023_T114818124-thread-3] util.PpdmUtil - uploadPackage -->Failed to upload PPDM upgrade Package. Retrying count : 3
org.springframework.web.client.ResourceAccessException: I/O error on POST request for "https://xxx.xxx.xxx.xxx:8443/api/v2/upgrade-packages": Error writing request body to server; nested exception is java.io.IOException: Error writing request body to server
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:791) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:717) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.web.client.RestTemplate.postForEntity(RestTemplate.java:474) ~[spring-web-5.3.27.jar!/:5.3.27]
        at com.dellemc.ppoe.upgrade.util.PpdmUtil.uploadPackage(PpdmUtil.java:96) ~[upgrade-common-1.2.0.0.jar!/:?]
        at com.dellemc.ppoe.upgrade.precheck.tasks.PpdmPrecheckTask.execute(PpdmPrecheckTask.java:77) ~[upgrade-precheck-1.2.0.0.jar!/:?]
        at com.dellemc.ppoe.workflow.service.WorkflowTask.run(WorkflowTask.java:67) ~[ppoe-workflow-1.2.0.0.jar!/:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
        at java.lang.Thread.run(Thread.java:834) ~[?:?]
Caused by: java.io.IOException: Error writing request body to server
        at sun.net.www.protocol.http.HttpURLConnection$StreamingOutputStream.checkError(HttpURLConnection.java:3668) ~[?:?]
        at sun.net.www.protocol.http.HttpURLConnection$StreamingOutputStream.write(HttpURLConnection.java:3651) ~[?:?]
        at org.springframework.util.StreamUtils$NonClosingOutputStream.write(StreamUtils.java:287) ~[spring-core-5.3.27.jar!/:5.3.27]
        at org.springframework.util.StreamUtils.copy(StreamUtils.java:167) ~[spring-core-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.ResourceHttpMessageConverter.writeContent(ResourceHttpMessageConverter.java:139) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:129) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.ResourceHttpMessageConverter.writeInternal(ResourceHttpMessageConverter.java:45) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:227) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.FormHttpMessageConverter.writePart(FormHttpMessageConverter.java:541) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.FormHttpMessageConverter.writeParts(FormHttpMessageConverter.java:517) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.FormHttpMessageConverter.writeMultipart(FormHttpMessageConverter.java:497) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.FormHttpMessageConverter.write(FormHttpMessageConverter.java:369) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.http.converter.FormHttpMessageConverter.write(FormHttpMessageConverter.java:156) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.web.client.RestTemplate$HttpEntityRequestCallback.doWithRequest(RestTemplate.java:997) ~[spring-web-5.3.27.jar!/:5.3.27]
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:780) ~[spring-web-5.3.27.jar!/:5.3.27]
        ... 8 more
26 Oct 2023 11:48:20  UTC ERROR [workflow-UPGRADE_PRECHECK_WF_D261023_T114818124-thread-3] util.PpdmUtil - uploadPackage -->Maximum retries occurred for package upload.
26 Oct 2023 11:48:20  UTC ERROR [workflow-UPGRADE_PRECHECK_WF_D261023_T114818124-thread-3] tasks.PpdmPrecheckTask - PPDM Precheck failed :{}
com.dellemc.ppoe.common.errorutil.PPOEException: Failed to upload the Data Manager update package. Internal error occurred.
        at com.dellemc.ppoe.upgrade.util.PpdmUtil.uploadPackage(PpdmUtil.java:109) ~[upgrade-common-1.2.0.0.jar!/:?]
        at com.dellemc.ppoe.upgrade.precheck.tasks.PpdmPrecheckTask.execute(PpdmPrecheckTask.java:77) ~[upgrade-precheck-1.2.0.0.jar!/:?]
        at com.dellemc.ppoe.workflow.service.WorkflowTask.run(WorkflowTask.java:67) ~[ppoe-workflow-1.2.0.0.jar!/:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[?:?]
        at java.lang.Thread.run(Thread.java:834) ~[?:?]
26 Oct 2023 11:48:20  UTC INFO  [workflow-UPGRADE_PRECHECK_WF_D261023_T114818124-thread-3] util.UpgradeAuditUtil - Updating upgrade summary log file : Data Manager pre-check : Pre-check failed.
26 Oct 2023 11:48:20  UTC INFO  [workflow-UPGRADE_PRECHECK_WF_D261023_T114818124-thread-3] util.UpgradeAuditUtil - Updated upgrade summary log file.