Storage Flashcards
What is a storage account (in azure)?
It is a unique Azure Namespace.
* Every object in Azure has its own web address.
What is Blob ?
Binary Large Object
- These can be anything
- designed for storing large amounts of unstructured data.
- Cannot be accessed via SMB.
How many levels of Storage are there?
Three Levels:
1) Blob
2) Container (where blob resides)
3) Storage account (where the Container(s) resides)
What are the three Blob Types:
1) Block
Stores text and binary data (up to 4.7TB). Made up to individually managed blocks of data.
2) Append
These are block blods that are optimised for “append functions”. Ie designed to be written to, such as logging.
3) Page
These can store up to 8TB of data. Any part of this file could be accessed at any time.
Blob Pricing tiers:
- Hot - Frequently access files. with lower access times and higher access costs.
- Cool - Lower storage costs and higher access times. Data remains here for 30d.
- Archive - Lowest Costs and highest access times.
Managed Disk Characteristics
- Managed (Azure performs backups)
- Azure guarantee’s the size and performance,
- Upgrade - You can upgrade your disk size and type.
What are the 4 types of Disk in Azure ?
- HDD: - Old school spinning hard hard drive (ideal for backups and testing)
- Standard SSD - Higher Reliability and lower latency.
- Premium SSD - Higher performance than a standard SSD, recommend for high Ops workloads like databases.
- Ultra Disk - High demand data intensive workloads (up to 64TB)
File Storage Benefits:
1) Sharing
2) Managed
3) Resilient
4) Hybrid (supplement / replace existing on-premises file storage.)
File Archiving - Characteristics:
1) Designed for policy / compliance requirements.
2) Lowest price of all azure storage options.
3) Features - Durable, encrypted and stable. (designed for data that needs to be accessed infrequently)
4) Frees up Premium Storage
5) Secure
6) Blob - Archive storage is blob storage, so the same tools work on both.
