L50-503 Questions and Answers

SVM provides a common interface for all storage, allowing the customer to purchase less storage with different QOS and cost structures.

SVM requires additional hardware so the actual savings may take a few years to realize.

SVM has the ability to migrate data between devices giving the customer the capability to have just the right storage at all times.

The cost of SAN, NFS and DAS environment can be greatly reduced using SVMs common interface and heterogeneous device management.

Sync mirror is good for all applications.

Sync mirror works well in a campus or MAN environment.

Sync mirror requires no manual intervention for failover.

Sync mirror always requires manual intervention for failover.

SVM can reserve space for future use on a LUN-by-LUN basis.

SVM can build RAID structures for enhanced data protection.

SVM can migrate data from multiple storage arrays onto a single storage array.

SVM can make snapshots of volume groups that are spread across multiple storage arrays.

Consistency Volumes

Consistency Groups

Consistency Snapshots

Consistency Association

multiMirror lowers the bandwidth required on the customer's WAN.

multiMirror allows the customer to use the data at the disaster recovery site for test or backup.

multiMirror works with both FC and iSCSI SANs for flexibility.

multiMirror allows heterogeneous devices at the disaster recovery site.

multiMirror can recover from a network failure by doing a complete resynchronization.

The ability to retire equipment before going off warranty and onto maintenance.

The ability to extend the useful life of an asset by repurposing it to a different use.

The ability to non-disruptively refresh the storage infrastructure as business requires.

The ability to pool storage by common storage systems.

The ability to snapshot entire applications space efficiently.

Allows transparent data migration to time the removal of leased equipment to coincide with the lease expiration, saving the high cost of month-to-month rentals.

Allows for mirroring data between arrays to improve the availability of those applications deployed to save money through reduced downtime.

Allows for removal of assets to coincide with warranty expiration, saving the cost of maintenance, which may have been unbudgeted.

Allows full volume copies to be used non-disruptively to refresh the test bed for application test and development that improves the quality and time-to-market of new applications.

Allows for repurposing an asset from one application to another, thereby extending the useful life of that asset.

The customer will simply uncompress the data on disk that was previously compressed by SVM.

The customer can recover from recently taken PiTs that are on disk rather than the last tape backup.

The customer can recover from tape images on a virtual tape library managed by SVM.

The customer can move the data back from a disaster recovery site using IP.

to provision more physical capacity to a LUN than is actually needed

to cluster LUNs of similar type into one management entity

to add more volumes to a management domain than are supported by hardware

to create large virtual volumes based on a small amount of physical capacity

MetroMirror

FlexClone

Thin Provisioning

TrueCopy

SnapShot

HDS USP-VM

NetApp V-Series

EMC Invista

IBM SVC

actual data

copies for protection

RAID protection

planned downtime

allocated but unused capacity

by host

by RAID level

by DPM

by users