Azure Data Lake Storage Massively scalable, secure data lake functionality built on Azure Blob Storage; Azure Data Lake Storage Gen1 Hyperscale repository for big data analytics workloads; Blockchain Blockchain. An SLA, or Service Level Agreement, contains performance details of an Azure service. "Management Portal" means the web interface, provided by 21Vianet, through which customers may manage the Service. In the event that more than one Service Level for a particular Service is not met because of the same Incident, Customer must choose only one Service Level under which a Claim may be made based on the Incident. These facilities may be within the same geographical region or across two geographical regions. Get Valid Page Blob Ranges, Two (2) seconds multiplied by the number of MBs transferred in the course of processing the request, Ninety (90) seconds (where the source and destination blobs are within the same storage account), Ninety (90) seconds (where the source and destination files are within the same storage account), PutBlockList In cases where Service Levels apply to individual Service Resources or to separate Service tiers, Service Credits apply only to fees paid for the affected Service Resource or Service tier, as applicable. It provides the following four abstractions (services)- Blob storage, Table storage, Queue storage, and File storage. If you purchased Services as part of a suite or other single offer, the Applicable Monthly Service Fees and Service Credit for each Service will be pro-rated. One concern of using another kind of storage provider (table storage in this case) is the impact on our overall service stability. "Incident" means any set of circumstances resulting in a failure to meet a Service Level. Azure queue storage: It is a storage service that stores messages that can be accessed through HTTP or HTTPS from any part of the globe. Standard terms applicable to all Service Levels outlined herein: a. Definitions i. Zone-redundant storage (ZRS) 3. If the Total Storage Transactions in a given one-hour interval is zero, the error rate for that interval is 0%. Service Credits apply only to fees paid for the particular Service, Service Resource, or Service tier for which a Service Level has not been met. We will evaluate all information reasonably available to us and make a good faith determination of whether a Service Credit is owed. If the Total Storage Transactions in a given one-hour interval is zero, the error rate for that interval is 0%. Azure Archive storage is a natural extension to Azure Storage tiering, which includes hot, cold and archive tiers and does not require a separate storage … Azure Archive storage is a capable, flexible, and affordable storage solution which performs within advertised SLA and data durability figures. 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"Downtime" is defined for each Service in the Services Specific Terms below. Release notes: Updated SLA to reflect guarantees for Azure File Storage. Locally redundant storage (LRS) 2. "Block Blob Storage Account" is a storage account specialized for storing data as block or append blobs on solid-state drives. "Service Credit" is the percentage of the Applicable Monthly Service Fees credited to you following Microsoft’s claim approval. Some of these factors are: Spindle anti-starvation (an IO scheduling mechanism where new IO is not scheduled on spindle disks that have more than 100ms of pending IO). If we determine that a Service Credit is owed to you, we will apply the Service Credit to your Applicable Monthly Service Fees. If you purchased a Service from a reseller, you will receive a service credit directly from your reseller and the reseller will receive a Service Credit directly from us. 21Vianet will use all information reasonably available to it to validate the Claim and to determine whether any Service Credits are due. We guarantee that at least 99.9% (99% for Cool Access Tier) of the time, we will successfully process requests to read data from Locally Redundant Storage (LRS), Zone Redundant Storage (ZRS), and Geo Redundant Storage (GRS) Accounts. But my impression is that the 99.99% SLA provided by Azure storage actually covers ALL three types of storage (table, queue and blob) already. See Azure Architecture Center for reliable design best practices. Ten (10) seconds (to complete processing or return a continuation). "Incident" means (i) any single event, or (ii) any set of events, that result in Downtime. Read transaction requests to RA-GRS Accounts that fail due to Geo-Replication Lag. A powerful, low-code platform for building apps quickly, Get the SDKs and command-line tools you need, Continuously build, test, release, and monitor your mobile and desktop apps. All other Blob and Message Operations. Azure Cosmos DB can be classified as a tool in the "NoSQL Database as a Service" category, while Azure Storage is grouped under "Cloud Storage". "Applicable Monthly Service Fees" means the total fees actually paid by you for a Service that are applied to the month in which a Service Credit is owed. "Customer Support" means the services by which 21Vianet may provide assistance to Customer to resolve issues with the Services. You can directly read data from, but cannot write data to, the Secondary Region associated with RA-GRS Accounts. Live interactive visual guide to Azure Cloud's current state. There are 4 types of storage durability: Local Redundant Storage … We guarantee that at least 99.99% (99.9% for Cool Access Tier) of the time, we will successfully process requests to read data from Read Access-Geo Redundant Storage (RA-GRS) Accounts, provided that failed attempts to read data from the primary region are retried on the secondary region. For Services purchased as part of a suite, the Service Credit will be based on the pro-rata portion of the cost of the Service, as determined by 21Vianet in its reasonable discretion. You cannot specify the Secondary Region associated with storage accounts. “Locally Redundant Storage (LRS) Account”is a storage account for which data is replicated synchronously only within a Primary Region. For a claim related to Microsoft Azure, we must receive the claim within two months of the end of the billing month in which the Incident that is the subject of the claim occurred. Managed Disks doesn't have a financially backed SLA because its availability is based on the underlying storage used and the virtual machine it’s attached to. "Service Level" means the performance metric(s) set forth in this SLA that Microsoft agrees to meet in the delivery of the Services. What this means is that you don’t have a … You can directly read data from, but cannot write data to, the Secondary Region associated with RA-GRS Accounts. Only Premium Storage capable VMs support attaching Premium Storage to them. For example, the D2s_v3 is a Premium Storage capable VM, while the D2_v3 is not capable of supporting Premium Storage Disks. Release notes: Updated SLA to reflect guarantees for Azure File Storage. "Cool Access Tier" is an attribute of a Blob Storage Account indicating that the data in the account is infrequently accessed and has a lower availability service level than data in other access tiers. 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