31. What is storage virtualization?
Storage virtualization is amalgamation of multiple n/w storage devices into single storage unit.
32. What is virtualization?
A technique of hiding the physical characteristics of computer resources from the way in which other system application or end user interact with those resources. Aggregation, spanning or concatenation of the combined multiple resources into larger resource pools.
33. What is Multipath I/O?
Fault tolerant technique where, there is more than one physical path between the CPU in the computer systems and its main storage devices through the buses, controllers, switches and other bridge devices connecting them.
34. What are the 3 prominent characteristics of SAS Protocol?
a) Native Command Queuing (NCQ)
b) Port Multiplier
c) Port Selector
35. What is the purpose of disk array?
Probability of unavailability of data stored on the disk array due to single point failure is totally eliminated.
36. What is disk array?
Set of high performance storage disks that can store several terabytes of data. Single disk array can support multiple points of connection to the network.
37. What are the advantages of RAID?
“Redundant Array of Inexpensive Disks”
Depending on how we configure the array, we can have the
- data mirrored [RAID 1] (duplicate copies on separate drives)
- striped [RAID 0] (interleaved across several drives), or
- parity protected [RAID 5](extra data written to identify errors).
These can be used in combination to deliver the balance of performance and reliability that the user requires.
38. How is a SAN managed?
There are many management software’s used for managing SAN's to name a few Santricity
- IBM Tivoli Storage Manager.
- CA Unicenter.
- Veritas Volumemanger.
39. Which one is the Default ID for SCSI HBA?
Generally the default ID for SCSI HBA is 7.
SCSI- Small Computer System Interface
HBA - Host Bus Adaptor
40. What is the highest and lowest priority of SCSI?
There are 16 different ID’s which can be assigned to SCSI device 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8.
Highest priority of SCSI is ID 7 and lowest ID is 8.
Read More Questions:
SAN Interview Questions Part1
SAN Interview Questions Part2
SAN Interview Questions Part3
SAN Interview Questions Part4
SAN Interview Questions Part5
Storage virtualization is amalgamation of multiple n/w storage devices into single storage unit.
32. What is virtualization?
A technique of hiding the physical characteristics of computer resources from the way in which other system application or end user interact with those resources. Aggregation, spanning or concatenation of the combined multiple resources into larger resource pools.
33. What is Multipath I/O?
Fault tolerant technique where, there is more than one physical path between the CPU in the computer systems and its main storage devices through the buses, controllers, switches and other bridge devices connecting them.
34. What are the 3 prominent characteristics of SAS Protocol?
a) Native Command Queuing (NCQ)
b) Port Multiplier
c) Port Selector
35. What is the purpose of disk array?
Probability of unavailability of data stored on the disk array due to single point failure is totally eliminated.
36. What is disk array?
Set of high performance storage disks that can store several terabytes of data. Single disk array can support multiple points of connection to the network.
37. What are the advantages of RAID?
“Redundant Array of Inexpensive Disks”
Depending on how we configure the array, we can have the
- data mirrored [RAID 1] (duplicate copies on separate drives)
- striped [RAID 0] (interleaved across several drives), or
- parity protected [RAID 5](extra data written to identify errors).
These can be used in combination to deliver the balance of performance and reliability that the user requires.
38. How is a SAN managed?
There are many management software’s used for managing SAN's to name a few Santricity
- IBM Tivoli Storage Manager.
- CA Unicenter.
- Veritas Volumemanger.
39. Which one is the Default ID for SCSI HBA?
Generally the default ID for SCSI HBA is 7.
SCSI- Small Computer System Interface
HBA - Host Bus Adaptor
40. What is the highest and lowest priority of SCSI?
There are 16 different ID’s which can be assigned to SCSI device 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8.
Highest priority of SCSI is ID 7 and lowest ID is 8.
Read More Questions:
SAN Interview Questions Part1
SAN Interview Questions Part2
SAN Interview Questions Part3
SAN Interview Questions Part4
SAN Interview Questions Part5
Thanks for sharing SAN solutions in dubai
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