Prelaurea Test

[object Object],[object Object],[object Object],SAN SCSI Processo File Server Comandi a livello di disk block (NON di file) Processo File Server Comandi a livello di disk block (NON di file)

Applicazioni ,[object Object],Che significa ? Cosa si comunicano le applicazioni ? ...

Cluster (I) Interconnect ... ...

Cluster (I) SAN / NAS ... Interconnect Network

Failures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Gestione Failures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Transient Failures: In Pratica ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Terminologia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pertanto ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cosa può essere accaduto ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unrecoverable error: Come gestirlo ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Importantissimo ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Casi complicati ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Casi complicati: Come si gestiscono ? ,[object Object],[object Object],[object Object]

Ric ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Esempio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unrecoverable error: Come gestirlo ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

In pratica... Non si accorge di nulla Client riparte dall’inizio (omettendo le operazioni già eseguite) Unrecoverable error POP, SMTP, FTP HTTP, SSL, Kerberos CORBA, DCOM, JavaRMI Stateless NFS, DNS (su TCP), HTTP Stateful Stateful

Osservazione ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Osservazione ,[object Object],[object Object],[object Object],[object Object],[object Object]

Regola generale ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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