- Notes, cautions, and warnings
- PREFACE
- Revision history
- SRDF CLI overview
- Introduction to SRDF
- SYMCLI for SRDF
- SRDF pair states and links
- Before you begin
- Array access rights
- Device external locks
- SRDF operations and copy sessions
- Mirror R1 to a larger R2 device
- Restrict synchronization
- SRDF software and hardware compression
- Set compression for SRDF
- SRDF/A and the consistency exempt option
- Mixed-mode workloads on an SRDF director
- Set mixed-mode workloads
- FAST VP SRDF coordination
- Basic SRDF Control Operations
- Summary
- SRDF basic control operations
- SRDF modes of operation
- Establish an SRDF pair (full)
- Establish an SRDF pair (incremental)
- Failback to source
- Failover to target
- Invalidate R1 tracks
- Invalidate R2 tracks
- Make R1 ready
- Make R1 not ready
- Make R2 ready
- Make R2 not ready
- Merge track tables
- Move one-half of an SRDF pair
- Move both sides of SRDF device pairs
- Read/write disable target device
- Refresh R1
- Refresh R2
- Restore SRDF pairs (full)
- Restore SRDF pairs (incremental)
- Resume I/O on links
- Split
- Suspend I/O on links
- Swap one-half of an SRDF pair
- Swap SRDF pairs
- Update R1 mirror
- Write disable R1
- Write disable R2
- Write enable R1
- Write enable R2
- Dynamic Operations
- Dynamic operations overview
- Manage SRDF groups
- Device pairing operations
- Create a device file
- Valid device types for SRDF pairs
- Block createpair when R2 is larger than R1
- Creating SRDF device pairs
- symrdf createpair (-file option) syntax
- Create dynamic pairs with -file option
- Create dynamic pairs with the -sg option
- Create pairs with the -establish option
- Create pairs with the -format option
- Create pairs with the -invalidate option
- Create pairs with the -restore option
- Verify host cannot write to target devices with -nowd option
- Create dynamic concurrent pairs
- Deleting dynamic SRDF device pairs
- Group, move and swap dynamic devices
- SRDF/Asynchronous Operations
- SRDF/Asynchronous operations overview
- SRDF/Asynchronous operations
- Transition replication modes
- Set SRDF/A group cycle time, priority, and transmit idle
- Check for R1 invalid tracks
- Consistency for SRDF/A devices
- Add/remove devices with the consistency exempt option
- Adding device pairs to an active SRDF/A session
- Removing device pairs from an active SRDF/A session
- Display checkpoint complete status
- Delta Set Extension management
- DSE SRP capacity management (HYPERMAX OS)
- DSE pool management - Enginuity 5876
- Manage transmit idle
- Manage SRDF/A write pacing
- Devices that cannot be paced in a cascaded SRDF configuration
- Set SRDF/A group-level write pacing attributes
- Activate write pacing
- Simultaneous group-level and device-level write pacing
- Display SRDF/A
- SRDF/Metro Operations
- SRDF/Metro Overview
- SRDF/Metro changes to SYMCLI operations and commands
- Display SRDF/Metro
- Device pairs in SRDF/Metro configurations
- Manage resiliency
- Suspend an SRDF/Metro group
- Deactivate SRDF/Metro (deletepair)
- Example: Setting up SRDF/Metro (Array Witness method)
- SRDF/Metro Smart DR Operations
- SRDF/Metro Smart DR Overview
- SRDF/Metro Smart DR restrictions and dependencies
- SRDF/Metro Smart DR basic control operations
- SRDF/Metro Smart DR changes to SYMCLI operations and commands
- Set up an SRDF/Metro Smart DR environment
- Remove an SRDF/Metro Smart DR environment
- Monitor SRDF/Metro Smart DR
- Control an SRDF/Metro Smart DR environment
- Recover an SRDF/Metro Smart DR environment
- Consistency Group Operations
- Consistency group operations overview
- SRDF consistency group operations
- Enable and disable SRDF consistency protection
- Enable consistency: composite group vs. SRDF group name
- Enabling SRDF consistency protection for concurrent SRDF devices
- Check if device pairs are enabled for consistency protection
- Block symcg enable on R2 side
- Delete an SRDF consistency group
- Suspend SRDF consistency protection
- Composite group cleanup (msc_cleanup)
- Modify consistency groups
- Before you begin consistency group modification
- Consistency group modification restrictions
- Prepare staging area for consistency group modification
- Restrictions: Add devices to SRDF consistency group
- Restrictions: Remove devices from SRDF consistency group
- Restrictions: Device types allowed for add operations to an RDF1 consistency group
- Restrictions: Device types and consistency modes allowed for add operations to a concurrent RDF1 consistency group
- Restrictions: Devices types allowed to add to a cascaded RDF1 consistency group
- Restrictions: Device types allowed for remove operations from an RDF1 consistency group
- Restrictions: Device types allowed for remove operations from a concurrent RDF1 consistency group
- Restrictions: Device types allowed for remove operations from a cascaded RDF1 consistency group
- Recovering from a failed dynamic modify operation
- Consistency groups with a parallel database
- Consistency groups with BCV access at the target site
- Concurrent Operations
- Cascaded Operations
- Cascaded operations overview
- Setting up cascaded SRDF
- R21 device management
- Cascaded SRDF with EDP
- Sample session: planned failover
- Display cascaded SRDF
- SRDF/Star Operations
- SRDF/Star operations overview
- SRDF/Star states and operations
- SRDF/Star operations summary
- Configure and bring up SRDF/Star
- Step 1: Verify SRDF/Star control host connectivity
- Step 2: Verify array settings
- Step 3: Create an SRDF/Star composite group
- Step 4: Create the SRDF/Star options file
- Step 5: Perform the symstar setup operation
- Step 6: Create composite groups on target sites
- Step 7: (Optional) Add BCV devices to the SRDF/Star configuration
- Step 8: Bring up the SRDF/Star configuration
- Displaying the symstar configuration
- Removal of a CG from SRDF/STAR control
- Basic SRDF/Star operations
- SRDF/Star consistency group operations
- Before you begin: SRDF daemon interaction
- SRDF/Star consistency group restrictions
- Prepare staging for SRDF/Star consistency group modification
- Add devices to a concurrent SRDF/Star consistency group
- Add devices to a cascaded SRDF/Star consistency group
- Remove devices from consistency groups
- Recovering from a failed consistency group modification
- Recovery operations: Concurrent SRDF/Star
- Workload switching: Concurrent SRDF/Star
- Planned workload switching: Concurrent SRDF/Star
- Unplanned workload switching: concurrent SRDF/Star
- Unplanned workload switch to synchronous target site: concurrent SRDF/Star
- Unplanned workload switch to asynchronous target site: concurrent SRDF/Star
- Switch back to the original workload site: concurrent SRDF/Star
- Recovery operations: Cascaded SRDF/Star
- Workload switching: Cascaded SRDF/Star
- Reconfiguration operations
- SRDF/Star configuration with R22 devices
- Device Migration Operations
- SRDF/Automated Replication
- SRDF/Automated Replication overview
- SRDF/Automated Replication operations
- Clustered SRDF/AR
- Set symreplicate parameters in the options file
- Manage locked devices
- TimeFinder and SRDF operations
- SRDF Automated Recovery Operations
Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide
symmdr query
The symmdr query command reports on an SRDF/Metro Smart DR environment defined on an array and identifies the environment name, environment flags, and information about the SRDF/Metro and DR sessions.
Example
The following is an example of an
SRDF/Metro Smart DR environment on array 044 with a Normal Service state:
symmdr -sid 044 –name Alaska query
Array ID: 000197900044
Name : Alaska
Service State : Normal
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 20.9 .. 0.0 0.0 .X .. .A SyncInProg 80
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 47.1 0.0 0.0 .A .A SyncInProg 55 15 -
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
The following is an example of a
SRDF/Metro Smart DR environment on array 044 with a Degraded Service state and requiring a
symmmdr recover procedure:
symmdr -sid 044 –name Alaska query
Array ID: 000197900044
Name : Alaska
Service State : Degraded – Run Recover
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 20.9 .. 0.0 0.0 .X .. .D Invalid -
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 47.1 0.0 0.0 .A .D Invalid - 15 -
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
The following example shows monitoring a
SRDF/Metro Smart DR environment on array 044 while the SRDF/Metro and DR sessions become fully synchronized. This example specifies a count of 30 waiting for 600 seconds in between each display:
symmdr query -sid 044 –I 600 –c 30 –name Alaska
symmdr -sid 044 –name Alaska query
Array ID: 000197900044
Name : Alaska
Service State : Normal
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 20.9 .. 0.0 0.0 .X .. .A SyncInProg 80
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 47.1 0.0 0.0 .A .A SyncInProg 55 15 -
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Name : Alaska
Service State : Normal
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 20.9 .. 0.0 0.0 .X .. .A SyncInProg 80
Synchronization rate : 134.1 MB/S
Estimated time to completion: 00:02:40
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 40.1 0.0 0.0 .A .A SyncInProg 57 15 -
Synchronization rate : 82.7 MB/S
Estimated time to completion: 00:10:44
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Name : Alaska
Service State : Normal
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 0.0 .. 0.0 0.0 .X .. .H ActiveActive -
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 7.1 0.0 0.0 .A .A SyncInProg 95 15 -
Synchronization rate : 82.7 MB/S
Estimated time to completion: 00:00:44
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Name : Alaska
Service State : Normal
Capacity : 104.7 GB
Exempt Devices: No
MetroR1: 000197900044
MetroR2: 000197900055
DR : 000197900033
MetroR1 MetroR2 MetroR1 <-> MetroR2
--------------------- --------------------- -----------------------
MetroR1 MetroR2 MetroR1 MetroR2
Invalids Invalids Flg Invalids Invalids Flg Flags Done
(GB) (GB) HA (GB) (GB) HA LW ES State (%)
-------- -------- --- -------- -------- --- ----- ------------ ----
0.0 0.0 .. 0.0 0.0 .X .. .H ActiveActive -
Metro DR Metro <-> DR
----------------- ----------------- ------------------------------------------------------
Metro DR Metro DR Cycle
Invalids Invalids Invalids Invalids Flags Done Time
(GB) (GB) (GB) (GB) LM ES State (%) (sec) DR Consistent Image Time
-------- -------- -------- -------- ----- ------------ ---- ----- ------------------------
0.0 0.0 0.0 0.0 .A .H Consistent - 15 Fri Jan 6 14:12:45 2019
Legend:
Metro Flags:
(H)ost Connectivity: . = Normal, X = Degraded
(A)rray Health : . = Normal, X = Degraded
MetroR1 <-> MetroR2 Flags:
(L)ink State : . = Online, X = Offline
(W)itness State : . = Available, D = Degraded, X = Failed
(E)xempt Devices : . = No Exempt Devices, X = Exempt Device
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
Metro <-> DR Flags:
(L)ink State : . = Online, X = Offline, 1 = MetroR1_DR Offline, 2 = MetroR2_DR Offline
(M)ode : A = Async, D = Adaptive Copy
(E)xempt : . = No Exempt Devices, X = Exempt Devices
(S)ervice State : H = Active HA, A = Active, I = Inactive, D = Degraded
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