Mantieni tutto organizzato con le raccolte
Salva e classifica i contenuti in base alle tue preferenze.
Per integrare il disco di avvio, puoi collegare
unità a stato solido (SSD) locali
ai nodi master, worker primari e worker secondari del cluster.
Quando vengono fornite unità SSD locali al cluster, sia HDFS che i dati temporanei,
come gli output di shuffle, utilizzano le unità SSD locali anziché ildisco permanentete di avvio.
Gli SSD locali possono fornire tempi di lettura e scrittura più rapidi rispetto al disco permanente
(vedi Prestazioni degli SSD locali).
Le dimensioni di 375 GB di ogni SSD locale sono fisse, ma puoi collegare più SSD locali per aumentare lo spazio di archiviazione SSD (vedi Informazioni sugli SSD locali).
Ogni SSD locale è montato su /mnt/<id> nei nodi del cluster Dataproc.
Gli SSD locali utilizzano ext4
come file system predefinito.
Utilizzare gli SSD locali
Comando g-cloud
Utilizza il
comando gcloud dataproc clusters create
con i flag --num-master-local-ssds,
--num-workers-local-ssds e
--num-secondary-worker-local-ssds per collegare gli SSD locali ai nodi worker master, primario e secondario del cluster.
Le unità SSD locali possono essere collegate alle VM Dataproc utilizzando un'interfaccia SCSI (Small Computer System Interface) o NVME (Non-Volatile Memory Express) (vedi prestazioni degli SSD locali).
L'interfaccia SSD locale predefinita della VM del cluster Dataproc è l'interfaccia SCSI. Utilizza il comando
gcloud dataproc clusters create
con i flag --master-local-ssd-interface,
--worker-local-ssd-interface e
--secondary-worker-local-ssd-interface
per specificare l'interfaccia SSD locale per i nodi master, worker primari e secondari.
Imposta il campo
numLocalSsds
in masterConfig, workerConfig e
secondaryWorkerConfigInstanceGroupConfig
in una
richiesta API
cluster.create
per collegare gli SSD locali ai nodi master, worker primari e
worker secondari del cluster.
Le unità SSD locali possono essere collegate alle VM Dataproc utilizzando un'interfaccia SCSI (Small Computer System Interface) o NVME (Non-Volatile Memory Express) (vedi prestazioni degli SSD locali).
L'interfaccia SSD locale predefinita della VM del cluster Dataproc è l'interfaccia SCSI. Imposta il campo
localSsdInterface
in masterConfig, workerConfig e
secondaryWorkerConfigInstanceGroupConfig
in una richiesta API
cluster.create per specificare l'interfaccia"SCSI " o"NVME" per collegare gli SSD locali ai nodi master, worker primari e worker secondari del cluster.
Console
Crea un cluster e collega gli SSD locali ai nodi master, primario e secondario del worker dal pannello Configura nodi della pagina Crea un cluster di Dataproc della console Google Cloud .
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-04 UTC."],[[["\u003cp\u003eLocal SSDs can be attached to master, primary worker, and secondary worker nodes in a cluster, offering faster read and write speeds compared to persistent disks.\u003c/p\u003e\n"],["\u003cp\u003eEach local SSD has a fixed size of 375GB, but multiple SSDs can be attached to increase the total SSD storage capacity.\u003c/p\u003e\n"],["\u003cp\u003eThe gcloud command-line tool and REST API provide methods to configure the number and interface type (SCSI or NVME) of local SSDs attached to each node type.\u003c/p\u003e\n"],["\u003cp\u003eLocal SSDs are automatically mounted to the \u003ccode\u003e/mnt/<id>\u003c/code\u003e directory on Dataproc cluster nodes and use the ext4 file system by default.\u003c/p\u003e\n"],["\u003cp\u003eYou can create a cluster with local SSDs from the "Configure Nodes" panel of the Dataproc cluster creation page of the google cloud console.\u003c/p\u003e\n"]]],[],null,["To supplement the boot disk, you can attach\n[local Solid State Drives (local SSDs)](/compute/docs/disks/local-ssd)\nto master, primary worker, and secondary worker nodes in your cluster.\nWhen local SSDs are provided to the cluster, both HDFS and scratch data,\nsuch as shuffle outputs, use the local SSDs instead of the boot\npersistent disk.\n\n- Local SSDs can provide faster read and write times than persistent disk (see [Local SSD Performance](/compute/docs/disks/local-ssd#performance)).\n- The 375GB size of each local SSD is fixed, but you can attach multiple local SSDs to increase SSD storage (see [About Local SSDs](/compute/docs/disks/local-ssd)).\n- Each local SSD is mounted to `/mnt/\u003cid\u003e` in Dataproc cluster nodes.\n- Local SSDs use [`ext4`](https://en.wikipedia.org/wiki/Ext4) as the default filesystem.\n\nUse local SSDs \n\ngcloud command\n\nUse the\n[`gcloud dataproc clusters create`](/sdk/gcloud/reference/dataproc/clusters/create)\ncommand with the `--num-master-local-ssds`,\n`--num-workers-local-ssds`, and\n`--num-secondary-worker-local-ssds` flags to attach local\nSSDs to the cluster's master, primary, and secondary worker\nnodes.\n\nLocal SSDs can be attached to Dataproc VMs using a SCSI\n(Small Computer System Interface) or NVME (Non-Volatile Memory Express) interface (see\n[local SSD performance](/compute/docs/disks/local-ssd#performance)).\nThe default Dataproc cluster VM local SSD interface is the SCSI interface. Use the\n[gcloud dataproc clusters create](/sdk/gcloud/reference/dataproc/clusters/create)\ncommand with the `--master-local-ssd-interface`,\n`--worker-local-ssd-interface`, and\n`--secondary-worker-local-ssd-interface` flags\nto specify the local SSD interface for master, primary, and secondary\nworker nodes.\n\n**Example:** \n\n```\ngcloud dataproc clusters create cluster-name \\\n --region=region \\\n --num-master-local-ssds=1 \\\n --num-worker-local-ssds=1 \\\n --num-secondary-worker-local-ssds=1 \\\n --master-local-ssd-interface=NVME \\\n --worker-local-ssd-interface=NVME \\\n --secondary-worker-local-ssd-interface=NVME \\\n ... other args ...\n```\n\nREST API\n\nSet the\n[numLocalSsds](/dataproc/docs/reference/rest/v1/ClusterConfig#diskconfig)\nfield in the `masterConfig`, `workerConfig`, and\n`secondaryWorkerConfig`\n[InstanceGroupConfig](/dataproc/docs/reference/rest/v1/ClusterConfig#InstanceGroupConfig)\nin a\n[cluster.create](/dataproc/docs/reference/rest/v1/projects.regions.clusters/create)\nAPI request to attach local SSDs to the cluster's master, primary worker, and\nsecondary worker nodes.\n\nLocal SSDs can be attached to Dataproc VMs using a SCSI\n(Small Computer System Interface) or NVME (Non-Volatile Memory Express) interface (see\n[local SSD performance](/compute/docs/disks/local-ssd#performance)).\nThe default Dataproc cluster VM local SSD interface is the SCSI interface. Set the\n[localSsdInterface](/dataproc/docs/reference/rest/v1/ClusterConfig#diskconfig)\nfield in the `masterConfig`, `workerConfig`, and\n`secondaryWorkerConfig`\n[InstanceGroupConfig](/dataproc/docs/reference/rest/v1/ClusterConfig#InstanceGroupConfig)\nin a\n[cluster.create](/dataproc/docs/reference/rest/v1/projects.regions.clusters/create)\nAPI request to specify the \"SCSI\" or \"NVME\" interface to attach local SSDs to the cluster's master,\nprimary worker, and secondary worker nodes.\n\nConsole\n\nCreate a cluster and attach local SSDs to the master,\nprimary, and secondary worker nodes from the Configure nodes panel of the\nDataproc\n[Create a cluster](https://console.cloud.google.com/dataproc/clustersAdd) page\nof the Google Cloud console."]]
