Module 4: Intelligent Storage Systems (Overview) Flashcards
What is an intelligent storage system (ISS)?
feature rich storage array with highly optimized IO capabilities
What are the characteristics of an ISS?
purpose built OS that handles management, provisioning, and utilization
configured w/ large amounts of cache and multiple IO paths
ensures data integrity while keeping privacy compliance
What are the types of ISS?
SAN
NAS
OSD
Unified
What are the key features of ISS?
Intelligence
Performance
Efficient
Data Protection
What is SAN?
block based storage system
What is NAS?
high peformant file sharing and storage device
How does NAS work?
admin creates file systems on NAS system - create the shares - export shares to NAS clients
What does NAS allow?
for both Linux and Windows users to share the same data
What is OSD (Object-Based Storage Device)?
stores data in form of objects on a flat address space
What are the characteristics of an object?
all exist at same level and an object can’t be placed in another object
How is an object identified?
by an Object ID - allows easy access to objects w/o needing to specify storage location
What is the impact of unified storage?
multiprotocol capability increases storage utilzation
What is the purpose of block based storage?
to dedicate LUNs to a host so host thinks it has new internal drive
What happens once a LUN has been dedicated to a host on a block based storage system?
host sends block level IO over SAN to get data from host to the storage array
How does NAS data transfer work?
file sharing over an IP network
