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Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

Commands to display, query and verify SRDF configurations

The following table lists SYMCLI commands to display, query, and verify your SRDF configuration.

NOTE:The following table is intended to provide examples of the types of information displayed by the list and verify commands. It is NOT a complete list of all options and states that can be verified. For a complete list, refer to the Dell Solutions Enabler CLI Reference Guide
Table 1. Commands to display and verify SRDF, devices, and groups
SYMCLI command Description of command output
symcfg list
symcfg list Displays the connectivity (Local or Remote) of each array.

Useful for verifying that only one array is connected to the host in a SRDF/Star configuration.

symcfg list -v Displays a more detailed (verbose) listing, including:
  • Concurrent SRDF Configuration State
  • Dynamic SRDF Configuration State
  • Concurrent Dynamic SRDF Configuration
  • RDF Data Mobility Configuration State
symcfg list -sid SID -rdfg {all|RDFGrpNum Displays SRDF group-level settings for a specific group or all groups on a array, such as:
  • Group type
  • Director configuration
  • Group flags, including auto link recovery, link domino, SRDF/Star mode, SRDF software and hardware compression, and SRDF single round trip
  • SRDF flags, including consistency and SRDF status and mode
symcfg list -RA {all| Director } symcfg list -RA {all| Director } -rdfg RDFGrpNum Display all RDF directors, or a specified RDF director.

Display RDF directors associated with a specified SRDF group.

symcfg list -RA {all| Director } -p {all| Port HYPERMAX OS only.

Display all ports or specified port for SRDF groups configured on all or the specified director:

  • Port ID
  • Negotiated speed (Gb/second)
  • Maximum speed (Gb/second)
  • Port status (online or offline)
symcfg list -RA {all| Director } -p {all| Port
symcfg list -sid SID -witness [-v] [-out xml] [-offline Displays information about all vWitness definitions on an array. Use the -v option to display detailed (verbose) information.
symcfg show -sid SID -witness WitnessName [-out xml] [-offline] Displays detailed information about a specific vWitness definition.
symdev list
symdev list -r1 Displays only the R1 side of the SRDF configuration.

R1 devices not in a device group are displayed as N/Grp'd.

symdev list -sid SID -metroDR

Display the array devices that are identified as SRDF/Metro Smart DR devices.

symdev list -sid SID -r1 -bcv Displays the RDF1 BCV devices for the specified array.
symdev list -sid SID -devs Device:Device -lock Display devices with a device external lock.

Displays a specified range of devices that have a device external lock.

symdev show
symdev show Device_number -sid SID Displays information about the specified SRDF devices, including:
  • SRDF device type and its group number
  • Whether the device is in an SRDF/Metro configuration
  • Whether the device is paired with a diskless or concurrent device
  • Whether the device has a standard/thin relationship
  • If the R2 device is larger than its R1
  • Whether SRDF/A group-level and/or device-level write pacing is currently activated and supported for the SRDF/A session
  • Whether the device is pace-capable
symrdf list
symrdf list Displays the SRDF configuration, including source devices, remote target devices, and whether a device is an R1 or R2, SRDF group, replication method, pair state, invalid tracks, and the state of each device and the SRDF links that connect them.

See Table 1 for a list of symrdf list command options.

symrdf query
symrdf -g DgName query Displays the state of the SRDF devices and their SRDF links in the specified device group.

During normal operations, the SRDF pair is Synchronized:

  • The R1 devices and SRDF links are read-writable.
  • The R2 devices are write disabled.
  • The link is in synchronous replication.

    During failed over operations:

  • The R1 devices are write disabled.
  • The R2 devices are read/write.
  • The SRDF links are suspended.
symrdf -g DgName query -all Displays the SRDF pair state of all devices in the specified device group, regardless of the device type.
symrdf -g DgName query -bcv Displays the SRDF pair state of the SRDF BCV devices in the specified device group.
symrdf -g DgName query -summary Displays summarized information about the state of the SRDF devices and their SRDF links in the specified device group, including:
  • Pair state
  • Number of invalid tracks on the source and target
  • Synchronization rate
  • Estimated time remaining for SRDF pair synchronization.
symrdf -cg CgName query Displays the state of the SRDF devices and their SRDF links in the specified composite group.
symrdf -sid SID -rdfg GrpNum -sg SgName query Displays the state of the SRDF devices and their SRDF links in the specified storage group.
symrdf verify (file)
symrdf -f Device_filename verify Verifies/displays the state of devices in the specified device file.
symrdf -f Device_filename verify -activeactive For SRDF/Metro configurations, verifies/displays whether any devices in the specified device file are in the 'ActiveActive' state.
symrdf -f Device_filename verify -all -i 5 -synchronized Verifies/displays a message every 5 seconds as to whether any devices in the specified device file are in the 'Synchronized' state until all SRDF pairs are synchronized.
symrdf verify (group)
symrdf -g DgName verify Verifies/displays the state of devices in the specified device group.
symrdf -g DgName verify -failedover Verifies/displays whether any devices in the specified device group are in the 'Failed Over' state.
symrdf -g DgName verify -synchronized Verifies/displays whether any devices in the specified device group are in the 'Synchronized' state.
symrdf -g DgName verify -i 30 -synchronized Verifies/displays a message every 30 seconds as to whether any devices in the specified device group are in the 'Synchronized' state.
symrdf -g DgName verify -all -i 5 -synchronized Verifies/displays a message every 5 seconds as to whether any devices in the specified device group are in the 'Synchronized' state until all SRDF pairs are synchronized.
symrdf -g DgName verify -split Verifies/displays whether any devices in the specified device group are in the 'Split' state.
symrdf -g DgName verify -syncinprog Verifies/displays whether any devices in the specified device group are in the 'SyncInProg' state.
symrdf -g DgName verify -activeactive For SRDF/Metro configurations, verifies/displays whether the SRDF device pairs are in the 'ActiveActive' state.
symrdf -g DgName verify -activebias For SRDF/Metro configurations, verifies/displays whether the SRDF device pairs are in the 'ActiveBias' state.
symrdf verify (composite group)
symrdf -cg CgName verify Displays the state of devices in the specified composite group.
symrdf -cg CgName verify -consistent Verifies/displays whether devices in the specified composite group are in the 'Consistent' state.
symrdf -cg CgName verify -consistent -noinvalids -i 60 Monitors and reports (one line message) the clearing of invalid tracks.

Verifies/displays a one-line message every 60 minutes as to whether any devices in the specified composite group are in the 'Consistent with no invalid tracks' state until all SRDF pairs in the group are the "Consistent with no invalid tracks" state.

symrdf -cg CgName verify -activeactive For SRDF/Metro configurations, verifies/displays whether devices in the specified composite group are in the 'ActiveActive' state.
symrdf -cg CgName verify -activebias For SRDF/Metro configurations, verifies/displays whether devices in the specified composite group are in the 'ActiveBias' state.
symrdf verify -summary -consistent -noinvalids -cg CgName -i 45 Monitors and reports (detailed message) the clearing of invalid tracks.

Verifies/displays a detailed message every 45 minutes as to whether any devices in the specified composite group are in the 'Consistent with no invalid tracks' state until all SRDF pairs in the group are the "Consistent with no invalid tracks" state.

symrdf verify (storage group)
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify Verifies/displays the state of devices in the specified storage group.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -failedover Verifies/displays whether any devices in the specified storage group are in the ‘Failed Over’ state.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -synchronized Verifies/displays whether any devices in the specified storage group are in the ‘Synchronized’ state.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify –i 30 -synchronized Verifies/displays a message every 30 seconds as to whether any devices in the specified storage group are in the ‘Synchronized’ state.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -all -i 5 -synchronized Verifies/displays a message every 5 seconds as to whether any devices in the specified storage group are in the ‘Synchronized’ state until all SRDF pairs are synchronized.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -split Verifies/displays whether any devices in the specified storage group are in the ‘Split’ state.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -activeactive For SRDF/Metro configurations, verifies/displays whether devices in the storage group are in the 'ActiveActive' state.
symrdf -sg SgName -sid SID -rdfg RdfGrpNum verify -activebias For SRDF/Metro configurations, verifies/displays whether devices in the storage group are in the 'ActiveBias' state.
symstar list
symstar list Displays all the SRDF/Star composite groups visible to the host.
symstar list -local Displays all the SRDF/Star composite groups local to your host.

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