Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

Description

The SRDF/Star options file specifies the names of each SRDF/Star site and other required parameters.

Syntax

The SRDF/Star options file must conform to the following syntax:

SYMCL_STAR_OPTION=Value

You can add comment lines that begin with "#".

#Comment
SYMCLI_STAR_WORKLOAD_SITE_NAME=WorkloadSiteName
SYMCLI_STAR_SYNCTARGET_SITE_NAME=SyncSiteName
SYMCLI_STAR_ASYNCTARGET_SITE_NAME=AsyncSiteName
SYMCLI_STAR_ADAPTIVE_COPY_TRACKS=NumberTracks
SYMCLI_STAR_ACTION_TIMEOUT=NumberSeconds
SYMCLI_STAR_TERM_SDDF=Yes|No
SYMCLI_STAR_ALLOW_CASCADED_CONFIGURATION=Yes|No
SYMCLI_STAR_SYNCTARGET_RDF_MODE=ACP|SYNC
SYMCLI_STAR_ASYNCTARGET_RDF_MODE=ACP|ASYNC

Options

WorkloadSiteName

Configure a meaningful name for the workload site.

SyncSiteName

Configure a meaningful name for the synchronous target site. This name must match the SRDF group name used for the synchronous SRDF groups when building the composite group.

AsyncSiteName

Configure a meaningful name for the asynchronous target site. This name must match the SRDF group name that you used for the asynchronous SRDF groups when building the composite group for a Concurrent SRDF/Star configuration.

NOTE:There are no SRDF group names for the asynchronous site in a cascaded configuration.

NumberTracks

Maximum number of invalid tracks allowed for SRDF/Star to transition from adaptive copy mode to synchronous or asynchronous mode. SRDF/Star will wait until the number of invalid tracks is at or below the NumberTracks value before changing the SRDF mode.

The default is 30,000.

NumberSeconds

Maximum time (in seconds) that the system waits for a particular condition before returning a timeout failure.

The wait condition may be the time to achieve R2-recoverable SRDF/Star protection or SRDF consistency protection, or the time for SRDF devices to reach the specified number of invalid tracks while synchronizing.

The default is 1800 seconds (30 minutes). The smallest value allowed is 300 seconds (5 minutes).

SYMCLI_STAR_TERM_SDDF

Enables/disables termination of SDDF (Symmetrix Differential Data Facility) sessions on both the synchronous and asynchronous target sites during a symstar disable.

• Yes - Terminates SDDF sessions during a symstar disable.
• No - (Default setting) Deactivates (instead of terminates) the SDDF sessions during a symstar disable.

SYMCLI_STAR_ALLOW_CASCADED_CONFIGURATION

Enables/disables STAR mode for cascaded SRDF/Star configurations.

• Yes - STAR mode for a cascaded SRDF/Star configuration.
• No is the default setting.

SYMCLI_STAR_SYNCTARGET_RDF_MODE

Sets the SRDF mode between the workload site and the synchronous target site at the end of the symstar unprotect operation.

• ACP - (default setting) Sets the SRDF mode between the workload site and the synchronous target site transitions to adaptive copy mode at the end of the symstar unprotect operation.
• SYNC - Sets the SRDF mode between the workload site and synchronous target site remains synchronous at the end of the symstar unprotect action.

SYMCLI_STAR_ASYNCTARGET_RDF_MODE

Sets the SRDF mode between the workload site and the asynchronous target site at the end of the symstar unprotect operation.

• ACP - (default setting) Sets the SRDF mode between the workload site and the asynchronous target site to transition to adaptive copy mode at the end of the symstar unprotect operation.
• ASYNC - The SRDF mode between the workload site and asynchronous target site remains asynchronous at the end of the symstar unprotect action.

Examples

The following sample options file defines sites in NewYork, NewJersey, and London as operating points of a company's concurrent SRDF/Star storage environment:

#ABC Company's April 2012 financial Star storage environment
SYMCLI_STAR_WORKLOAD_SITE_NAME=NewYork
SYMCLI_STAR_SYNCTARGET_SITE_NAME=NewJersey
SYMCLI_STAR_ASYNCTARGET_SITE_NAME=London
SYMCLI_STAR_ADAPTIVE_COPY_TRACKS=30000
SYMCLI_STAR_ACTION_TIMEOUT=1800
SYMCLI_STAR_TERM_SDDF=No
SYMCLI_STAR_ALLOW_CASCADED_CONFIGURATION=No
SYMCLI_STAR_SYNCTARGET_RDF_MODE=ACP