EMC fundamentals - foundation for all other EMC exams. I'm not the orignal author. I've merely taken what was available on the internet and put it up on this website for flash card use. I may add to it from time to time and grow it. Or users can email me questions to add to it. USE at your own risk. . . IF YOU EVEN THINK an answer is incorrect - LOOK IT UP. . . In your book. This practice test is about learning the material and not remembering question and answer responses. Understand expecially the math calc problems.
1 hours
2 hours
3 hours
4 hours
MirrorView/A
SnapView
SRDF/AR
TimeFinder
CSMA/CD
Fiber Channel Arbitrated Loop
Store and Forward
Switched Fabric
1 and 6
4 and 5
7 and 5
6 and 3
Concantenating
Formatting
Partitioning
Striping
Must be able to restart their network within 4 hours
Must be able to restart their servers within 4 hours
Must be able to resume production within 4 hours
No more than 4 hours of production data can be lost
CAS
DAS
NAS
SAN
Hard Zoning
Mixed Zoning
Port Zoning
WWN Zoning
0 - 49,999
0 - 99,999
1 - 50,000
1 - 100,000
Availability
Manageability
Performance
Scalability
CIFS
FCP
NFS
SCSI
Bitmap Store and dirty store
Data-store and dirty store
Data-store and tag ram
Tag Ram and dirty store
Application
Database
Server
Storage Array
File system utilization
HBA status
Memory utilization
Power supply status
ATA
HBA
HDA
IDE
Direct
LAN
SAN
Mixed
Disk Array Enclosure
Disk Processor Enclosure
Logical Unit Number
RAID Group
I/O's to source device
Read from source device
Writes to source device
Writes to remote device
50
10
30
40
Dedicated storage network
Global inter-connectivity network
Multi-protocol storage network
Multi-purpose systems network
JukeBox
Magnetic Disk
Optical Disk
Tape
File level I/O
High CPU I/O utilization
Local storage provisioning
Simultaneous volume level operating system accessibility
Capacity
Health
Performance
Security
Installation, Config, Problem solving
Manageability, Integrity, Cost
Provisioning, Monitoring, Reporting
Scalability, Accessibility, Security
Connection for parallel communication devices
Control point for all host activities and resources
High speed interconnect between CPU and memory
Temporary location for commands and data
Asynchronous
Disk Buffering
Log Shipping
Synchronous
Control Station
Data Mover
Disk Array Enclosure
Storage Processor
Just after creating a point in time replica
Just before creating a point in time replica
Only when an app spans multiple hosts
Only when an app spans multiple storage arrays
Every initiator or target has a unique iSCSI name
ISCSI name is derived from the IP address
Only the target requires and iSCSI name
Only an initiator requires an iSCSI name
CIFS
FC-SW
HDA
SMI-S
Faster restore time
Portability
RAID Protection
Random Access
Backup Catalogs must be available
Backup device must be a disk
Must be initiated through CLI
Separate storage node must exist
Increases PLOGI efficiency
Minimizes impact to nodes after RSCN
Prevents host from seeing same volumes via multiple HBA's
Reduces the number of zone required in the SAN
Capacity management
Interval Management
Server Management
Switch Management
Availability
Manageability
Scalability
Security
Block
File
Frame
Object
100,000 hours
125,000 hours
1,000,000 hours
2,500,000 hours
Changed data not yet written to disk
Changed data written to disk
Data read from disk but not yet accessed by the host
Data requested by the host but not yet fetched
Need to disk buffer space
Need for time stamping writes
Potential for data loss
Response time elongation
Back-end adapter
Cache
Front-end adapter
Storage Processor
Allows external hosts access to storage devices
Manages storage devices via NAS software
Utilizes external switch access to storage devices
Manages storage devices via NAS software
Disk Loss
Host Bus Adapter failures
Host failures
Switch Failures
Save location must be bigger than the size of all source devices.
Save location size must be = to the size of all source devices
Source devices must be healthy
Source devices must be larger than the target devices
Provides file level access to data
Provides secure access to data
Uses CIFS for transport, ensuring high performance
Uses objects as storage units
Bus type
Disk capacity
LUN number
Power consumption
64
128
320
256
App
BUS
Operating System
Protocol
Configuring redundant fabrics
LUN Masking
Monitoring port status
Replicating logical volumes
Faster initial synchronization
Faster re-synchronization
To allow multiple replicas
To lower RTO
As a mirrored pair
As a mirrored set
As a RAID array
As a single disk
Gathers data for backup
Maintains the backup catalog
Retrieves metadata from the storage node
Writes the data set to the backup device
A read is issued for the first time from a location to the source
A read or write is issued to for the first time to a location on the target
All I/O's issued to a location on the target
All writes issued to a location on the target
Higher cost
Larger footprint
Limited inter-op
Limited performance
All storage Arrays support GigE ports
Block storage over IP is much faster than FC
ISCSI HBA's are inexpensive
Leverages existing IP infrastructure
Application response time
Host HBA type
Host memory
Number of nodes
Agent
Repository
Server
Store
Caching
Clustering
Flushing
Journaling
COFA
COFW
Full Volume Mirroring
Pointer based
FCIP
FCP
IFCP
ISCSI
Detecting when a file system has reached critical utilization
Examining the operation status of a device port
Listing the servers attached to a particular storage array
Viewing rates of data transmission of all disks
All reads from a location on the source
All writes to a location on the source
First read from a location on the source
First write to a location on the source
20 mb/s
25 mb/s
45 mb/s
50 mb/s
Divides a logical disk into physical volumes
Divides a logical disk into physical zones
Divides a physical disk in logical volumes
Divides a physical disk in logical zones
Arbitrated Loop
Full Mesh
Partial Mesh
Core Edge
Array based synchronous replication
Async ordered writes
Log Shipping
Host based async LVM mirroring
General purpose server for block level access
General purpose server for content addressed data
Specialized server for block level data access
Specialized server for content addressed data
Enables the ability to share data across platforms
Improved network Bandwidth
Improved network performance
Introduces block level I/O to the networked environment
CIFS
Ifiniband
NFS
ISCSI
Allocated storage
Back-end throughput
Disk status
Replication process
To create a common command line interface for device replication
To define a complete SAN object model
To define a standard GUI set
To limit management to storage arrays only
Availability
Capacity
Performance
Security
May be partition of a larger physical disk
May be presented to a host as several larger physical disks
May consist of interleaved physical disk
May consist of several file systems
Array based sync remote replication
Disk buffered consistent remote replication
LVM based remote replication
Synchronous plus extended distance consistent remote replication
Cannot span storage arrays
Replication is performed at the array device level
Requires an alternate host for Business Continuance operations
Uses host CPU resources
Control Station
Data Mover
Disk Array Enclosure
Storage Processor
ATA over FC
FC over SATA
FC over SCSI
SCSI over FC
HBA and Host
Host and Switch
Switch and Storage array
Storage array and storage array port
A set of functions that enable communication between applications
An identifier that uniquely addresses the content of a file and its location
An identifier that uniquely addresses the content of a file and not its location
An identifier that uniquely addresses the content, quality, condition and other characteristics of data
Reads are serviced by the remote replica
Reads are serviced by the source
Writes are acknowledged immediately by the remote replica
Writes are acknowledged immediately by the source
Enables centralized provisioning and management of storage resources
Leverages existing investment in DAS hardware
Provides file level access
Simplifies management by enforcing a "one storage volume per host" model
Least Recently Used
Read Ahead
Write-back cache
Write-through cache
Bridged NAS with iSCSI technology
Gateway NAS system solution
Integrated NAS system solution
Integrated NAS system with iSCSI technology
Direct
LAN
SAN
Mixed
IP
UDP
TCP
SCSI
Logical Block addressing
Partitioning
Sectoring
Zoned-bit recording
Asynch
Sync
Disk buffered
Logical Volume mirroring
6
10
60
90
Integrated NAS systems do not require storage array connection
NAS components and storage arrays are managed by NAS software
NAS components and storage arrays are managed via array management software
NAS devices are managed via NAS software and there is no need for storage array management
Informix
MS SQL
Oracle
Sybase
Better bandwidth since it enables full-duplex connection
Enables optical connections over longer distances
Lower cost
More compact cabling
Externally deployed content access storage
Externally deployed file level access storage
Internally deployed block level access storage
Internally deployed file level access storage
To communicate between Tag RAM and data store
To communicate between the host and the storage system
To communicate between the host and the switch
To move data between the cache and the disks
Cost
Faster restore
Portability
Sequential access
Device manager
EWS
Fabric manager
Switch manager
Host and storage on Edge, ISL only on Core
Placement is irrelevant
Storage on Edge, host on Edge
Host on Edge, storage on Core
Catalog
Group
Pool
Storage node
EMC Timefinder/mirror
MirrorView/A
SnapView
SRDF/S
Application
BUS
Memory
Storage Array
Configuring RAID
Creating authorization rules
Planning for capacity
Determining file system shares
Distributed object management
Globally unique identifier for every data object
Object name resolution using DNS
Object transport via Fibre Channel
A pool of LUNs reserved for use by a specific host
A pool of LUNs that can be used as hot spares
A pool of LUNs that can hold COFW data
A pool of LUNs that do not yet have a RAID type assigned
Hold I/O to the source devices immediately after the creation of the replica
Hold I/Os to the replica devices just before the creation of the replica
Hold I/Os to the source devices just before the creation of the replica
Shutdown database just before the creation of the replica
4 reads and 8 writes
4 reads or 8 writes
8 reads and 4 writes
8 reads or 4 writes
FCIP
FCP
IFCP
ISCSI
Bandwidth restrictions
Limited disk device support
Limited interconnect options
Single points of failure
To assist with discovery of iSCSI targets
To implement TCP offload for better bandwidth
To translate EUI-format names into iQN-format names
To translate iQN-format names into EUI-format names
Decrease reset time for any change made in the state of the fabric
Increase reset time for any change made in the state of the fabric
Prevent host from seeing the same volumes via multiple HBAs
Reduce the number of zones required in the SAN
Random, large reads
Random, small writes
Sequential, large writes
Sequential, small reads
Cannot manage log shipping
Limited to specific databases
Limited to specific operating systems
Uses host CPU resources
Determining which device ports have the highest rates of errors
Listing the number of disks in all storage arrays
Monitoring the status of processes on the host
Viewing a list of filesystems that are nearly full
A read issued for the first time to a location on the source
A write issued for the first time to a location on the source
All reads issued to a location on the source
All writes issued to a location on the source
Capacity
Health
Performance
Security
Hub by-pass circuit
Hub name service
Node that owns the token
Node with highest priority
Must be able to restart the network within 4 hours
Must be able to restart the servers within 4 hours
Must be able to resume production within 4 hours
No more than 4 hours of production data can be lost
1
2
3
4
Allows external hosts access to storage devices
Manages storage devices via array software
Manages storage devices via NAS software
Utilizes external switch access to storage devices
1 hour
2 hour
3 hours
4 hours
All reads from a location on the target
All writes to a location on the target
First read from a location on the target
First write to a location on the target
Data protection, less expensive, multiple host I/O channels
Higher speed interconnects, data protection, multiple host I/O channels
Less expensive, single server connection, data protection
Multiple host I/O channels, single server connection, data protection
Improved read performance
Improved space utilization
Improved write performance
Lower cost
Application
Database
Network
Server
CAS
DAS
NAS
SAN
A R/W head has touched the disk data area
A read head and a write head have touched each other
Two adjacent disk platters have touched each other
Two R/W heads have touched each other
To isolate ISL traffic from host-to-storage traffic
To isolate switch ports into separate logical SANs
To logically connect array ports and host HBAs
To logically connect LUNs on a storage array to different HBAs
BIOS
BUS
NIC
PORT
Availability, Capacity, Scalability
Compliance, Capacity, Scalability
Maintenance, Security, Utilization
Performance, Utilization, Data Integrity
Command queuing processes
Dual controllers
Multi-pathing software
SCSI addressing
Array based synchronous replication
Asynchronous ordered writes
Host based LVM Mirroring
Log shipping over IP networks
Availability
Data Protection
Manageability
Security
Back-end, cache, front-end, physical disks
Back-end, cache, switch, physical disks
Back-end, disk cache, front-end, physical disks
Back-end, disk cache, front-end, logical disks
A read issued for the first time from a location on the source
A read or write issued for the first time to a location on the source
A write issued for the first time to a location on the source
All I/Os issued to a location on the source
From a combination of the data and the metadata of the object
From the contents of the object
From the creation time and anticipated retention time of the object
From the size, in bytes, of the object
IP-based gateway-to-gateway protocol that can be used for SAN extension
IP-based protocol that is required to present block storage from a NAS appliance
IP-based protocol that is required to present FC targets to FC initiators
IP-based tunneling protocol that can be used for SAN extension
3 ms
5 ms
10 ms
15 ms
Bridged
Consolidated
Hybrid
Native
Cabling complexity
Limited distances
Limited to half-duplex
Substantially higher cost
Disk status
Fan-in/Fan-out ratio
ISL utilization
Port status change
All data from Standard Volume is copied to the BCV
All data from the BCV is copied to the Standard Volume
BCV is made independently accessible
Data is copied incrementally from the Standard Volume to the BCV
Control point for all host activities and resources
Device for storing data
High speed interconnect among CPU, memory, and disks
Temporary location for commands and data
General purpose server for content addressed data
General purpose server for file level access
Specialized server for content addressed data
Specialized server for file level data access
ATA
EIDE
FC
SCSI
Cylinders must be contiguous and from different zones
Cylinders must be contiguous and may be in the same zone
Cylinders must be non-contiguous and from different zones
Cylinders must be non-contiguous if they are in the same zone
A Domain ID
A HBA WWPN
The IP address of a host
The serial number of a storage array
Allows hosts to access data directly from storage array
Allows the customer to directly connect to the storage array
Centralizes storage and simplifies the management
Improves network bandwidth
Flush file system buffers after the creation of the replica
Flush file system buffers before the creation the replica
Stop the application prior to the creation of the replica
Unmount the file system prior to the creation of the replica
Gather data for backup
Maintain the backup catalog
Retrieve metadata from the storage node
Write the data set to the backup device
Access is slow
Data is unprotected
Disks cannot be independently addressed by the server
Storage capacity is lower
Applications, Databases, JBOD, Networks, Storage Arrays
Applications, Databases, Servers/Operating Systems, DAS, NAS
Applications, Databases, Servers/Operating Systems, Networks, Storage Arrays
Applications, Databases, Servers/Operating Systems, SAN, JBOD
Concatenates the disk together with other disks
Divides a disk into logical containers
Mirrors the disk
Presents the disk as one logical volume
Asynchronous
Extended distance consistent PIT
Log shipping
Synchronous
Access Logix
FLARE
MirrorView
SnapView
Fractured
Inconsistent
Independent
Synchronizing
Agent
Repository
Server
Store
Array provided device management
Array provided global access volumes
Host provided content addressed objects
Host provided data addressing
Celera
Centera
CLARiiON
Connectrix
1, 2, 3
1, 3, 2
2, 3, 1
3, 1, 2
Internally deployed parallel encapsulated protocol storage
Internally deployed parallel protocol storage
Internally deployed serial encapsulated protocol storage
Internally deployed Transmission Control Protocol encapsulated protocol storage
Creating a list of filesystems that are under utilized
Examining the operational status of a device port
Graphing the rates of user login failures per day
Viewing rates of data transmission of all disks
HBA
Storage Array
Storage Array Port
Switch
Dual-redundant power supplies
Greater connectivity capacity
More options for SAN management software
Support for both LC and SC optical connectors
2gb
10gb
20gb
100gb
A, B, C, D
A, D, B, C
C, D, B, A
D, C, B, A
Amount of media
Catalog size
Media type
Number of tape libraries
Data written by the host but not yet saved to disk
Flags that indicate whether or not data is duplicated in cache
Pointers to the location of data in cache and on disk
Read-ahead data fetched by the storage array
Actuator arm assembly
R/W head controller
R/W interface
Radial arm assembly
Load balancing
LUN masking
Port zoning
Write coalescing
Reduces the Recovery Point Objective for restart operations from the target
Reduces the Recovery Time Objective for restart operations from the target
Speeds up the initial synchronization of the source and target
Speeds up the re-synchronization of the source and target
ESCON
FC
Gigabit Ethernet
SCSI
16 bit
32 bit
64 bit
128 bit
Direct
Lan
San
Mixed
A block-level disk drive I/O protocol
A language and methodology for describing management data
A measure of the rotational speed of a disk drive
A standard for file share modeling, visualization, and management
No more than 2 hours of production data can be lost
No more than 4 hours of production data can be lost
Time to resume production operations must be no more than 2 hours
Time to resume production operations must be no more than 4 hours
Fibre Channel Persistent ID
LUN Masking
Secure Fabric OS
Single HBA Zoning
Array managed data security
Content addressed storage
Global access to data
Host managed storage volumes
Establishing user quotas
Installing multi-path software
Maintaining user logins
Monitoring faults and events
Availability
Manageability
Performance
Scalability
Catalog
Device configuration
Log files
Reports
Back-end adapter
Cache
Front-end adapter
Storage Processor
Temporary loss of data access, since both Data Movers must reboot
Temporary loss of data access, while the system reconfigures to Primary/Standby
There is no impact
Total loss of data access
Faster rebuild times after failure
Higher availability
Improved space utilization
Improved write performance
Five minutes
Two hours
Three hours
Five hours
DWDM
GigE
SONET
T3
E_Ports
F_Ports
G_Ports
N_Ports
Availability
Health
Performance
Security
All writes to a location on the source
All writes to a location on the target
First read from a location on the target
First write to a location on the source
ATA over SCSI
IP over SCSI
SCSI over ATA
SCSI over IP
Configuring the system to meet application performance requirements
Configuring the system to meet limited interconnectivity options
Managing the system to integrate multiple block level access ports to the NAS devices
Managing the system to prevent multiple client access to visible volumes
Capacity planning
Monitoring
Provisioning
Reporting
BUS
DISK
FileSystem
Memory
Parity is read each time a read is performed
Parity is read only when a full stripe is read
Parity is updated each time a write is performed
Parity is updated when writes fill a stripe
Array Capacity
Array Health
Server Capacity
Server Health
4 and 5
6 and 3
7 and 1
7 and 5
B-series
CX-Series
M-Series
MDS-Series
A management server within a fabric
A primary server within a fabric
A storage array within a fabric
A switch within a fabric
DNS
ISNS
NIS
WINS