02 Flashcards
_______________ is a term used to describe the components needed for cloud computing, including hardware, abstracted resources, storage, and network resources.
Cloud Infrastructure
___________ are the primary storage unit for data.
Buckets
What are the two main factors used in determining the appropriate disk type?
Speed and capacity
__________ is measured in bytes,
Capacity
___________ is typically measured in input/output operations per second (IOPS)
Speed
___________ have been the storage standard for workstations and servers for decades, reliable, reasonably fast/priced
HDD, Spinning Disk
_________ rely on flash memory to provide very fast access to data. Are the standard in end-user workstations and servers and are becoming more common in servers. more expensive but performance trade-off is worth it
Flash Memory, SSDs
________ use a mix of SSD and HDD technologies to attempt to maximize performance and cost
Hybrid disks
An HDD use rapidly rotating disks called _________, coated with a magnetic material known as ________________
platters, ferrous oxide
___________ is a high-performance storage device that contains no moving parts, ________ based flash memory
SSD, NAND
_________ (Disk Striping) – Provides speed with no redundancy and requires a minimum of
_____ disks
RAID 0, 2
___________ (Disk Mirroring) – Provides high degree of redundancy by writing across multiple
disks at once. Space is not efficiently used as data is written multiple times on multiple
disks. Requires a minimum of ____ disks.
RAID 1, 2
____________ (Disk striping with parity) - provides a balance between performance, redundancy, and cost-effective capacity. Data is distributed across the stripes on the disks, as with RAID 0, but additional parity information is also written to the disks. This permits data to be recreated if one of the drives in the array fails. Requires a minimum of ______ disks
Raid5, 3
___________(Disk striping with double parity) _ distributes data across a minimum of four disks the same way that RAID 0 and RAID 5 do, but also distributes parity information across two disks
RAID 6
___________ - provides the same as RAID 0 but with mirroring. Rebuild times are fast, but the per-gigabyte storage costs are not as efficient as with RAID 5 or 6. Requires a minimum of _______ disks.
Raid 10, 4
________ provides the striping associated with RAID 0 but includes disk striping with parity of RAID 5. Requires a _____ disk minimum but tolerates up too 2 disk failure
RAID 50, 6
_____________ permits an organization to adjust where its data is being stored based on the performance, availability, cost, and recovery requirements of an application
Tiered storage
Tiered storage, allows for movement of data from fast, expensive disks to slower less expensive disks using ____________________
Hierarchical storage management
______ is organized into tiers based on the performance capabilities of each device
HSM
Tier ___ data is mission critical, recently accessed or secure files and should be stored on expensive and highly available enterprise falsh drives such as RAID with parity. Tier ___ drives are ______ or pther high-speed disks
1, SSD
Tier ___ is data the runs major business applications like email and resource planning software, is balanced between speed and cost
2
Tier ___ data is usually financial data that needs to be kept for tax reasons but is not accessed daily, primarily uses ______
3, HDD
Tier ___ is information stored to meet requirements of retention policies, such as emails or administrative forms. Stored on _______ or ________
4, back-up tapes, HDDs
____________ Is the foundation of a successful infrastructure
Storage
___________ Is a storage system where servers directly connect to the storage devices without going through a network device
Direct Attached Storage
____________ is a file-dedicated storage device that makes data continuously available for employees to collaborate over a network _____ devices are specialized servers that handle only data storage and file-sharing requests.
Network Attached Storage, NAS
___________ is a dedicated, independent high-speed network that interconnects and delivers shared pools of storage devices to multiple servers
What are its three primary components?
Storage Area Network
- One or more servers that manage access to the data
-An isolated network between the servers and the storage infrastructure.
-The data storage infrastructure itself (HDDs, SSDs, etc)
_____ allow organizations to connect disparate types of storage, such as tape and optical media.
SANS
Data is divided into chunks called ________ and stored in sperate pieces. ____________ is not reliant on a server’s file system, and data chunks may be distributed across several storage devices
Blocks, Block Storage
_____________ access is provided via shared file storage systems, such as Network File System and Common Internet file system. The __________ type is essentially a cloud-based NAS that shares folders to client computers whether they are on premises or in cloud infrastructure.
File Storage
___________ also breaks the data into chunks, provides highly detailed metadata, is scalable, and cost efficient. ______does not write efficiently and is not suitable for content such as databases, it is best for data that is written once and read frequently
Object Storage
