PowerMax and VMAX All Flash Solutions Design (Local Replication + Remote Replication) Flashcards
What is TimeFinder SnapVX?
local replication technology that supports VMAX/PMax
What does SnapVX do?
creates local snapshots without requiring a pairing between the source and target volumes
targets are not required to create the snapshot and are only required to mount and use a replica
How many snapshots can a single volume have?
256
How many target volumes can be linked to the snapshots of a single volume?
1024
What makes the snapshots efficient on PowerMax and VMAX?
made efficient as possible by sharing point-in-time tracks
called snapshot deltas
What is Local Replication Suite?
TimeFinder SnapVX w/ cloud scalable snaps
SnapSure - file level local replication
Compatible Flash - for mainframe
What are the benefits of TimeFinder SnapVX?
shorter create and terminate times w/ no dependency on cache when scaling
zero impact targetless snaps
support for OS and MF environments
underlying technology of zDP
What is SRDF/S?
maintains a synchronous mirrored copy of production data at physically separated system
supports SRDF/CG - for consistency group synchronous replication
What is the distance of SRDF/S?
125m (200km)
What is SRDF/A?
mirrors data from primary while always maintaining a dependent write consistency copy of the data on the secondary
secondary only seconds behind primary copy
What is the distance of SDRF/A?
unlimited distance
What is SRDF/CE?
SRDF/Cluster Enabler
allows Windows Server 20212 running Microsoft Failover Clusters to operate across multiple connected storage arrays in geographically dispursed clusters
What can you run concurrently w/ SRDF/CE?
SRDF/S
SRDF/A
SRDF concurrent
SRDF/ cascaded
What is SRDF/Star?
three site DR solution
secondary site synchronously mirrors data from primary and tertiary site asynchronously mirrors prod data
What are the two types of SRDF/Star?
Cascaded SRDF/Star
Concurrent SRDF/Star
What is SRDF/Metro?
each copy is current and consistent in SRDF/Metro configuration
write conflicts between the paired SRDF devices are managed and resolved
What is the main benefit of SRDF/Metro?
host or host cluster can read and write to both R1 and R2 devices
What is SRDF/AR?
automated remote replication solution
uses both SRDF and TimeFinder to provide long distance restart solution for UNIX and Windows environments
What is a networking option for SRDF/AR?
can be configured to run on lower bandwidth networks
How is SRDF/AR deployed?
over two or three sites
What is FAR w/ SRDF/S?
FAR = file auto recovery
FAR enables you to manually fail over or move a Virtual Data Mover (VDM) from a source eNAS system to destination eNAS system
What are the native migration options for PowerMax/VMAX?
SRDF/DM
NDM
ORS
What is SRDF/DM?
SRDF/Data Mobility
enables fast data transfer from R1 to R2 devices over extended distances
How does SRDF/DM work?
uses adaptive copy mode
unlimited distance
What is NDM?
Non-Disruptive Migration
method for migrating data without application downtime
When do you typically use NDM?
migrations typically performed between arrays within the same data center
to consolidate multiple older arrays into a smaller footprint
What is ORS?
open system replicator
enables copying full or incremental copies of data from qualified third-party arrays within a SAN infrastructure to PMax/VMAX
How does ORS work?
pull from source volumes on qualified remote arrays to volume
perform online data migration
