「Data Protection Central：Data DomainのSSOを構成するときに、構成に失敗します。

2020-06-29 13:49:36,424 WARN OkHttp https://<DD hostname>:3009/... c.e.c.t.TaskServiceImpl Reregistration of SSO client for <DD hostname> failed
java.util.concurrent.CompletionException: com.emc.clp.spi.ForbiddenException: Administrator credentials required for the SSO registration
    at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
    at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
    at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:838)
    at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811)
    at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
    at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
    at com.emc.edp.http.OkHttpHttpClient.fail(OkHttpHttpClient.java:677)
    at com.emc.edp.http.OkHttpHttpClient.access$400(OkHttpHttpClient.java:34)
    at com.emc.edp.http.OkHttpHttpClient$3.onResponse(OkHttpHttpClient.java:555)
    at okhttp3.RealCall$AsyncCall.execute(RealCall.java:174)
    at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: com.emc.clp.spi.ForbiddenException: Administrator credentials required for the SSO registration
    at com.emc.clp.plugin.datadomain.DataDomainElementalHandler.lambda$handleClientRegistration$3(DataDomainElementalHandler.java:281)
    at com.emc.dpc.common.util.CompletableFutureUtils.lambda$convertException$0(CompletableFutureUtils.java:110)
    at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:836)
    ... 11 common frames omitted
Caused by: com.emc.edp.http.HttpException: [500] Internal Server Error
    at com.emc.edp.http.OkHttpHttpClient.createHttpException(OkHttpHttpClient.java:670)
    at com.emc.clp.plugin.datadomain.http.DataDomainHttpClient.createHttpException(DataDomainHttpClient.java:314)
    ... 6 common frames omitted
Caused by: com.emc.edp.http.OkHttpHttpClient$OriginalRequest: POST https://<DD hostname>:3009/rest/v1.0/trust
    at com.emc.edp.http.OkHttpHttpClient.startRequest(OkHttpHttpClient.java:502)
    at com.emc.edp.http.OkHttpHttpClient.startRequest(OkHttpHttpClient.java:474)
    at com.emc.clp.plugin.datadomain.http.DataDomainHttpClient.post(DataDomainHttpClient.java:155)
    at com.emc.clp.plugin.datadomain.DataDomainElementalHandler.handleClientRegistration(DataDomainElementalHandler.java:279)
    at com.emc.clp.security.sso.SsoElementalRegistrationService.sendSsoRegistrationRequestToElemental(SsoElementalRegistrationService.java:333)
    at com.emc.clp.security.sso.SsoElementalRegistrationService.lambda$getRegisterSubTasks$4(SsoElementalRegistrationService.java:154)
    at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:966)
    at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:940)
    at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
    at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
    at com.emc.edp.http.OkHttpHttpClient.fail(OkHttpHttpClient.java:677)
    at com.emc.edp.http.OkHttpHttpClient.access$400(OkHttpHttpClient.java:34)
    ... 6 common frames omitted

ログには、登録失敗の原因となっている次の認証情報エラーが表示されます。

Caused by: com.emc.clp.spi.ForbiddenException: Administrator credentials required for the SSO registration

• SSOに登録するには、sysadminアカウントを使用する必要があります。これは、SSOを登録できる唯一のアカウントです。他の管理者アカウントでさえ、その権限を持っていません。 
• Data DomainがDPCで検出されたときに、sysadminアカウントが付与されていない可能性があります。DPCシステム管理ページでData Domainを編集し、sysadminアカウントとそのアカウントのパスワードを入力します。 
• DPC UIからSSOの再登録を試みます。