Table 39 SRDF 2-site solutions (continued)
Solution highlights
Site topology
l
Once data is written to cache in Site B, the
SRDF emulation in Site B returns a positive
acknowledgment to Site A
Operating Notes:
l
The maximum skew value set at the device level
in SRDF/DM solutions must be equal or greater
than 100 tracks
l
SRDF/DM is only for data replication or
migration, not for disaster restart solutions
on page 123.
Note
Data may be read from the drives to cache before it is transmitted
across the SRDF links, resulting in propagation delays.
SRDF/Automated Replication (SRDF/AR)
l
Combines SRDF and TimeFinder to optimize
bandwidth requirements and provide a long-
distance disaster restart solution.
l
Operates in 2-site solutions that use SRDF/DM
in combination with TimeFinder.
on page 160.
Site A
Host
Site B
R1
R2
TimeFinder
TimeFinder
SRDF
background copy
Host
SRDF/Cluster Enabler (CE)
l
Integrates SRDF/S or SRDF/A with Microsoft
Failover Clusters (MSCS) to automate or semi-
automate site failover.
l
Complete solution for restarting operations in
cluster environments (MSCS with Microsoft
Failover Clusters)
l
Expands the range of cluster storage and
management capabilities while ensuring full
protection of the SRDF remote replication.
For more information, see EMC SRDF/Cluster
Enabler Plug-in Product Guide
.
Site A
Site B
SRDF/S or SRDF/A links
Fibre Channel
hub/switch
Fibre Channel
hub/switch
VLAN switch
VLAN switch
Extended IP subnet
Cluster 1
Host 2
Cluster 2
Host 1
Cluster 2
Host 2
Cluster 1
Host 1
SRDF-2node2cluster.eps
Remote replication solutions
104
Product Guide
VMAX 100K, VMAX 200K, VMAX 400K with HYPERMAX OS
Содержание VMAX 100K
Страница 1: ...EMC VMAX3 Family Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS REVISION 6 5 ...
Страница 20: ...Preface 20 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 46: ...VMAX3 with HYPERMAX OS 46 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 72: ...Open systems features 72 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 82: ...Provisioning 82 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 100: ...Native local replication with TimeFinder 100 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 158: ...Remote replication solutions 158 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 186: ...Mainframe Error Reporting 186 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...
Страница 200: ...Licensing 200 Product Guide VMAX 100K VMAX 200K VMAX 400K with HYPERMAX OS ...