容量は、すべてのお客様の間で共有される、使用可能な特定のリソースの総量です。ただし、一部のユーザーやプロジェクトがリソースを独占しないように、 Google Cloud は、割り当てにより、使用可能な特定の共有 Google Cloud リソースの量を制限しています。
各割り当ては、特定のサービスへの API 呼び出し、特定の時点でプロジェクトで使用される VM の数、プロジェクトで同時に使用されるロードバランサの数、作成可能なプロジェクトの数など、特定のカウント可能なリソースを表します。
多くのサービスには、一部のリソースについてデフォルトの割り当てが存在しますが、アプリケーションに適用される割り当ては、ユーザー、プロジェクトまたは組織に固有のものです。プロジェクトで課金を有効にすると、ほとんどのサービスの割り当てが増加します。 Google Cloud の使用量の増加に伴い、割り当てを引き上げることができます。
割り当ての増加リクエストへの迅速な対応を希望している場合は、 Google Cloud コンソールの使用を検討してください。ただし、リクエストの分析がさらに必要な場合は、アカウント チームにお問い合わせいただく必要があります。
Google Cloud コンソールから割り当て値を調整するには、割り当ての表示と管理をご覧ください。
割り当て増加リクエストの大半は自動システムによって評価されます。その判断は、リソースの空き状況、 Google Cloudの使用期間、その他の要因を含む基準に基づいて行われます。この基準を満たしていないリクエストは拒否されます。リクエストが拒否された場合は、サポートケースを作成するか、アカウント チームまたは TAM に連絡して、割り当ての増加をリクエストできます。
予約を作成する
予約を使用すると、必要なときに同じハードウェア（メモリと vCPU）とオプションのリソース（GPU とローカル SSD ディスク）を使用して VM を作成するための Compute Engine リソースを確保できます。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[],[],null,["# Secure capacity for your event\n\nA critical component of event readiness is capacity planning, where you\ndetermine the amount of cloud resources needed to ensure your workloads have\nwhat they need to operate effectively, without over provisioning and paying\nunnecessarily for what you don't need.\n\nCapacity is the total amount of a particular resource that's available, shared\nacross all customers. However, to ensure that a few customers or projects can't\nmonopolize resources, Google Cloud restricts how much of a particular\nshared Google Cloud resource that you can use with\n[quotas](/docs/quotas/view-manage).\n\nEach quota represents a specific countable resource, such as API calls to a\nparticular service, the number of VMs used by your project at a given time, the\nnumber of load balancers used concurrently by your project, or the number of\nprojects that you can create.\n\nWhile many services have default quotas for some resources, the quotas that\napply to your applications are specific to you, your project, or your\norganization.\n[Enabling billing](/billing/docs/how-to/modify-project#enable_billing_for_a_project)\nfor your project increases quotas for most services. Quotas can also increase as\nyour use of Google Cloud expands over time.\n\nAs you're preparing for your high traffic event or peak season, you need to\n**ensure that your quotas match your resource requirements so that you don't\nencounter unexpected failures**.\n\nWe recommend that you do the following:\n\n- Use [Cloud Monitoring tools](/monitoring) to get visibility into your\n application usage and capacity, and the overall health of your applications and\n infrastructure.\n\n- Evaluate the average and peak utilizations of your top cloud workloads, and\n their current and future capacity needs, to determine how much over-provisioning\n is needed to prepare for traffic spikes.\n\n- Run load tests to determine how much load the system can handle while meeting\n its latency targets, given a fixed amount of resources.\n\nUse Capacity Planner\n--------------------\n\n| **Private preview**\n|\n| Capacity Planner is subject to the \"Pre-GA Offerings Terms\"\n| in the General Service Terms section of the\n| [Service Specific Terms](/terms/service-terms#1).\n| Pre-GA products and features are available \"as is\" and might have limited\n| support. For more information, see the\n| [launch stage descriptions](/products#product-launch-stages).\n|\n| If you don't have access to Capacity Planner,\n| [contact your account team](/contact), and request a capacity\n| planning session.\n\nCapacity Planner lets you view historical and forecasted usage of\nyour virtual machine (VM) instances, Persistent Disk volumes, and GPUs. You can also\nview reservations, reserve resources in advance, and manage your project's quota\nlimits by seeing how close you are to your limit, and setting up automatic quota\nincrease requests. For more information, see\n[View usage and forecast data in Capacity Planner](/capacity-planner/docs/view-data).\n\nEnable the quota adjuster\n-------------------------\n\nThe quota adjuster monitors your resource consumption and\nproactively submits quota adjustment requests on your behalf so that you don't\nhave to make manual requests. For more information, see\n[How the quota adjuster works](/docs/quotas/quota-adjuster#how-the-quota-adjuster-works).\n\nRequest a quota adjustment\n--------------------------\n\nIf your quotas aren't sufficient for what you need, you can request a quota\nadjustment. There are three primary ways to submit a quota increase request:\n\n- Through the Google Cloud console\n- Through a support case\n- Directly with your account team or TAM\n\nIf you need a quota increase request addressed quickly, you should consider\nusing the Google Cloud console. However, if the request requires more\nanalysis, you might need to work with your account team.\n\nTo adjust a quota value through the Google Cloud console, see\n[View and manage quotas](/docs/quotas/view-manage).\n\nMost quota increase requests are evaluated by automated systems. Their decision\nis based on criteria including the availability of resources, the length of time\nyou've used Google Cloud, and other factors. Requests that don't meet the\ncriteria are denied. If your request is denied, you can try requesting the quota\nincrease by [creating a support case](/support/docs/customer-care-procedures),\nor by contacting your account team or TAM.\n\nCreate a reservation\n--------------------\n\nReservations help ensure that you have the Compute Engine resources\navailable to create VMs with the same hardware (memory and vCPUs) and optional\nresources (GPUs and Local SSD disks) whenever you need them.\n\nAn *on-demand reservation* is provisioned at the time you request it, if the\nrequested capacity is available. A *future reservation* lets you request\ncapacity in advance and provides you with a high level of assurance in obtaining\nand securing capacity for peak scale events. We recommend that you procure\nfuture reservations well in advance of your event. For more information, see\nthe following:\n\n- [Reservations of Compute Engine zonal resources](/compute/docs/instances/reservations-overview)\n- [Create a reservation for a single project](/compute/docs/instances/reservations-single-project)\n- [Create future reservation requests for a single project](/compute/docs/instances/create-single-project-future-reservations)\n\nWhat's next\n-----------\n\n- [Prepare to resolve issues during your event](/support/docs/peak-events/issue-resolution)"]]
