Disk

Storage > Disk is a centralized location for adding and deleting storage to your cloud. Disks are organized by disk name, disk and cloud type, zone and size.

Storage Disk
Storage Disk
  • Disk Name is a unique name given to a disk for identification.
  • Disk Types are differentiated by the various features of the disk.
Disk Type ($) Information Recommendation
Magnetic Cost effective, light or burst I/O, Shared among cloud customers so performance varies Use for standard storage when performance is not important
General Purpose (SSD) Faster than disk storage, Can handle high burst I/O for extended period of time Good for small – medium databases
Provisioned IOPS Great for I/O intensive workloads, allows to dedicate IOPS which is guaranteed by the cloud provider to ensure a certain speed of operations Great for large databases and I/O intensive applications
Standard Persistent Disk Standard HDD persistent disks are efficient and economical for handling sequential disk access operations, but are not optimized to handle high rates of operations. Use for standard storage when performance is not important
Persistent Disk SSD

 

Persistent disks perform in a predictable manner and scale linearly Use when there is high rate of read/write operations
  • $: please note that your cloud provider could have varying rates for disks
  • Cloud types are Amazon and Microsoft, at present. Disks in a particular cloud type are usually connected by means of a network with Compute instances on the same cloud type.
  • Zone refers to the location of the data center where the data is stored. Some factors that govern selection of zone are –
    • Legal – Countries can request data to be shared for law and order purposes. They could have restrictions on where certain data could be stored for users from their country.
    • Performance – Creating Disks in proximity to Compute and Network zones could be helpful for delivering better performance, in general.
  • Size refers to their capacity in GB.

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