When to enable fast write, Extending rdr applications over fcip – Brocade Network Advisor SAN + IP User Manual v12.3.0 User Manual
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Brocade Network Advisor SAN + IP User Manual
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Connecting cascaded FICON fabrics over FCIP
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2. Enter the following command to set the speed for the link. Only speeds supported by the
installed SFP are supported. Use 0 to set back to automatic sensing mode.
portcfgspeed slot/port speed
3. Enter the following command to disable QoS.
portcfgqos --disable slot/port
4. Enter the following command to enable ISL R_RDY mode.
portcfgislmode slot/port, 1
5. Enter the following command to disable trunking on the port.
portcfgtrunkport slot/port, 0
6. Enter the following command to display port settings:
portcfgshow
Extending RDR applications over FCIP
This section provides considerations for configuring tunnels and circuits when extending remote
data replication (RDR) applications over FCIP.
When to enable Fast Write
Enabling Fast Write depends on the application that you are extending over FCIP. Use the following
table to determine if Fast Write should be enabled for a tunnel configuration. Enable Fast Write
through the FCIP Tunnel Advanced Settings dialog box. Access this dialog box by selecting
Advanced Settings on the Add FCIP Tunnel dialog box.
TABLE 121
Using Fast Write for extended applications
Manufacturer
RDR Application
Platform
Type
Use Fast Write
IBM
Global Mirror (PPRC)
DS
Async
No
IBM
Metro Mirror
DS
Sync
No
IBM
XIV
XIV
Sync
Yes
IBM
Global Mirror
SVC
Async
No
IBM
Metro Mirror
SVC
Sync
No
EMC
SRDF/A
Symmetrix
Async
Yes
EMC
SRDF/S
Symmetrix
Sync
Yes (SiRT disabled)
EMC
SRDF Adaptive Copy
Symmetrix
Async
Yes
EMC
MirrorView
CLARiiON
Async
Yes
EMC
MirrorView
CLARiiON
Sync
Yes
EMC
SANcopy
CLARiiON
Async
Yes
HDS
Universal Replicator
(HUR)
All
Async
No
HDS
TrueCopy
All
Async
No