Overview of external storage
Features
System components
How Universal Volume Manager works
Requirements and planning
Planning workflow
System requirements
Planning considerations for external storage systems
External volume requirements
Cache use and external storage performance
External volume groups
External paths, path modes, and configurations
External paths
Single path mode
Multi path mode
Supported external system path mode for external volumes
External path configurations - direct, switch, and extender
Mapping policy
Considerations for external volume attributes
Considerations for external paths
Restrictions on adding an external path to a route in use
Considerations for using iSCSI
Considerations for using Fibre Channels
Considerations for executing external volume commands at the same time
Additional considerations
Application performance considerations
Mainframe volumes
Open-systems volumes
Capacity requirements for volumes
LDEV capacities per emulation type
Example: Determining capacity for OPEN-3 volume
Formula for calculating capacity for 3390-A and 3390-V mainframe volumes
Volume capacities adjustment for pairs
Decreasing the size of the S-VOL
Decreasing the size of the external volume S-VOL
Copying external storage system data
Using an external volume as a P-VOL to copy data
Using an external volume as an S-VOL to copy data
Supported software for external volumes
Thin Image
Dynamic Provisioning, Dynamic Tiering, active flash, and Thin Image
Restrictions on copying volumes using Universal Volume Manager with DP-VOLs
Local replication software
Performance Monitor
Remote replication software
SNMP Agent
Virtual LVI/LUN
Global-active device
Setting up external volumes
Workflow for setting up external volumes
Setting port attributes on the local system (VSP 5000 series)
Port setup (VSP E series)
Setting up ports on the external system
Limitations on mapping an external volume
Mapping an external volume
Preparing mapped volumes for use
Use of mapped volumes
Recognition of the local system from the external system
Monitoring and maintenance
Monitoring external volumes and paths
External volume policy settings and functions
Editing mapping policies for external volumes
Cautions for changing the MP unit
Changing the MP unit assigned to an external volume
Changing path mode to ALUA mode (Enable or Disable)
Changing I/O mode for external storage systems
Changing the port settings of an external storage system
Path maintenance
Adding an external path to an existing path group
Adding an iSCSI path
Editing an iSCSI target
Changing external path priority
Executing a login test for an iSCSI target
Disconnecting an external path
Deleting an iSCSI path
Reconnecting an external path
Changing the cache mode setting of the external volume
Removing or replacing an external path
Replacing all external paths
Disconnecting external systems and volumes
Prerequisites for disconnecting external systems
Disconnecting an external storage system, all mapped volumes
Disconnecting a single mapped volume
Deleting an external volume mapping
Reconnecting external systems and volumes
Reconnecting an external storage system and all mapped volumes
Reconnecting a single mapped volume
Requirements for external storage system maintenance
Changing the WWNs/iSCSI target names of the external storage system without deleting the external volume mapping
Powering off and on storage systems
Powering off and on external storage systems
Powering off external storage systems (scheduled shutdown)
Reconnecting external storage systems after powering off
Powering off and on local storage systems
Powering off local storage systems (scheduled shutdown)
Reconnecting local storage systems after powering off
Powering off and on local and external storage systems
Powering off local and external storage systems
Powering on local and external storage systems
Troubleshooting
General troubleshooting
Troubleshooting external path status
Detection of response delay from the external storage system and actions to take
Troubleshooting path errors for specific storage systems
VSP 5000 series troubleshooting
VSP G1x00 and VSP F1500 troubleshooting
VSP E series troubleshooting
VSP G200, G/F400, G/F600, G/F800 troubleshooting
VSP and HUS VM, and USP VM troubleshooting
HUS, AMS, WMS troubleshooting
TagmaStore USP/NSC troubleshooting
Lightning 9900 V troubleshooting
Lightning 9900 troubleshooting
Thunder 9500V troubleshooting
SVS200 troubleshooting
Troubleshooting port and volume discovery problems
Special settings required for certain supported external storage systems
Special settings required for certain supported Hitachi external storage systems
VSP 5000 series
VSP G1x00 and VSP F1500
VSP E series
VSP G130, G/F350, G/F370, G/F700, G/F900
VSP G200, G/F400, G/F600, G/F800
VSP
HUS VM
USP V/VM
TagmaStore USP/NSC
Lightning 9900 V
Lightning 9900 or SANRISE 2000
Thunder 9500V
Identifying the 9500 V model using the serial number
Identifying the controller using the port WWN
HUS, AMS, WMS
Identifying the HUS/AMS/WMS model using the serial number
Identifying the controller using the port WWN (HUS/AMS/WMS)
HUS and AMS 2000 series guidelines
VSSB
Special settings required for certain supported external storage systems from other vendors
XP8
XP7
P9500
XP24000/XP20000 Disk Array
XP12000/XP10000 Disk Array
XP1024/XP128 Disk Array
XP512/XP48 Disk Array or SANRISE H512/H48
SVS200 storage system
EVA storage systems
Identifying logical volumes using Device ID
HPE Nimble Storage/Alletra
HPE Primera A630, A650, A670, C630, C650, C670
Sun StorEdge 6120/6320
Sun StorageTek FlexLine 380
Sun StorageTek 2540
Sun StorageTek V2X2
EMC CLARiiON CX series
System option modes for connecting EMC CLARiiON CX series
System parameters for connecting EMC CLARiiON CX series
EMC VNX series
System option modes for connecting EMC VNX series
System parameters for connecting EMC VNX series
EMC Symmetrix series/DMX series/V-MAX/PowerMax
System parameters for connecting the EMC Symmetrix series
Restrictions that apply if volumes with different serial numbers coexist on a port on the EMC Symmetrix series
IBM DS3000/DS4000/DS5000 series
IBM V7000 series
IBM SVC series
IBM XIV series
Fujitsu FibreCAT CX series
Fujitsu ETERNUS DX60/80/90 S2 and Fujitsu ETERNUS DX400 S2
Fujitsu ETERNUS DX8900 S4/DX8900 S3/DX8700 S3/DX60 S5/DX100 S5/DX200 S5/DX500 S5/DX600 S5/DX900 S5/AF150 S3/AF250 S3/AF650 S3
SGI IS4600 series
3Par T800, F400, V800, V400, and StoreServ series
Considerations for connecting to servers
Considerations for connecting to Linux servers
Considerations for connecting to LinuxIO (LIO)
Considerations for connecting to Windows 2012 servers
Considerations for connecting to Windows Server 2016 Datacenter
Considerations for connecting to Windows Server 2019
Connection to storage systems from other vendors
Connection to storage systems using the generic Universal Volume Manager profile
Support conditions when using the generic Universal Volume Manager profile
Virtualization support requirements
Suggested virtualization procedure
Using a remote command device
Overview of remote command devices
Requirements for mapping a command device as a remote command device
Restrictions and other information
Supported remote command device storage systems and information
Command Control Interface reference
Device Manager - Storage Navigator actions and CCI commands
Ranges of parameters for CCI command options
Universal Volume Manager GUI reference
External Storage window
Selected external storage system window
Selected external path group window
Add External Volumes wizard
Select External Path Group window
Add External Volumes window
Add External Volumes confirmation window
Edit Policies window
Edit External Volumes wizard
Edit External Volumes window
Edit External Volumes confirmation window
Edit External Path Configuration wizard
Edit External Path Configuration window
Edit External Path Configuration confirmation window
Edit External WWNs wizard
Edit External WWNs window
Edit External WWNs confirmation window
Edit External iSCSI Targets wizard
Edit External iSCSI Targets window
Edit External iSCSI Targets confirmation window
Delete External Volumes wizard
Delete External Volumes window
Delete External Volumes confirmation window
Disconnect External Paths wizard
Disconnect External Paths window
Disconnect External Paths confirmation window
Reconnect External Paths wizard
Reconnect External Paths window
Reconnect External Paths confirmation window
Discover External WWNs window
Discover External Target Ports window
Create External Path Group window
Change Settings window
View External LUN Properties window
Reconnect External Storage Systems window
Reconnect External Volumes window
Disconnect External Storage Systems window
Disconnect External Volumes window
Assign MP unit wizard
Assign MP Unit window
Assign MP Unit confirmation window
External LDEV Properties window
Discovery Result Detail window
Add iSCSI Paths wizard
Add iSCSI Paths window
Add iSCSI Paths confirmation window
Delete iSCSI Paths window
Edit iSCSI Targets wizard
Edit iSCSI Targets window
Edit iSCSI Targets confirmation window
Discover iSCSI Targets window
All the external volume attributes of an LDEV created within the external volume are the same. These attributes persist even when an LDEV is re-created.
All LDEVs within an external volume have the same cache mode.
Attributes, such as port or LUN security, set for a volume on the external storage system side persist when the volume is mapped.
Mapped volume settings can be made on the local storage system side as necessary.
Volumes for which the T10 P1 attribute is enabled cannot be specified as an external volume.