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Dell Unity™ Family Unisphere® Command Line Interface User Guide

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Manage VNX import sessions for file

A Virtual Data Mover (VDM) file import is the process in which a VDM on a VNX1 or VNX2 storage system (source) is imported to a remote Unity storage system (target). The file systems (common log or split log) associated with the VDM are imported to ufs64 file systems on the target storage system.

Each file import session is identified by an ID. The Unisphere online help provides more details about import of VDM file storage.

NOTE:At any given point in time, only one command is supported on a file import session. Before running a new command, ensure that you wait for the existing action on the file import session to complete.

The following table lists the attributes for file import sessions:

Table 1. File import session attributes
Attribute	Description
ID	ID of the file import session.
Name	Name of the file import session.
Health state	Health state of the import session. Valid values are: Unknown (0)—The remote system health cannot be determined. OK (5)—Session is operating normally. OK BUT (7)—Session is in one of the following states: Session is initialized but paused. Session is paused to migrate data in initial copy. Session is paused to sync data in incremental copy. Degraded/Warning (10)—The session failed for one of the following reasons: Session failed to read some source files. Session failed to copy file from source to destination. Minor failure (15)—The session failed for one of the reasons listed in Table 2. Non-recoverable error (30)—An error has caused one or more of the following: Session failed. Session failed due to an unrecoverable failure in initial copy. Session failed due to an unrecoverable failure in incremental copy. NOTE: If the migration session is in an error state, the session will not be recoverable. You will need to delete the session and create a new migration session.
Health details	Additional health information. See Appendix A, Reference, for details.
State	State of the NAS server import session. Valid values are: Initialized Initial Copy Ready to Cutover Cutting Over Incremental Copy Ready to commit Commiting Completed Cancelling Cancelled
Progress	Import session progress.
Source system	Remote system identifier for source system.
Source resource	Source resource identifier.
Source import interface	Source import interface identifier for data transfer.
Source file systems imported as VMWare datastore	Source file systems that are imported as VMWare datastore. The value is a list of source file system IDs, in the format of a range (for continuous file system IDs) or a comma separated value (for file systems that are scattered) of source file system IDs. For example, 13,20~25,30.
Source file systems imported with Data Reduction enabled	Source file systems that are imported with data reduction enabled. The value is a list of source file system IDs, in the format of a range (for continuous file system IDs) or a comma separated value (for file systems that are scattered) of source file system IDs. For example, 13,20~25,30.
Source file systems imported with advanced deduplication enabled	Source file systems that are imported with advanced deduplication enabled.
Target resource	Target resource identifier.
Target resource pool	Target resource containing pool identifier.
Target file system to pool mapping	Target resources are only provisioned after you start the import session (by resuming it). Before the target file systems are provisioned (that is, after creation but before being started), the mapping is from a range (for continuous file system IDs) or a comma separated value (for file system IDs that scatter) of source file system IDs to a target pool. For example, 24~26:pool_1; 28,33~36,40:pool_2;50,55:pool_3;78:pool_4. After all the target file systems are provisioned (that is, after the session started), the mapping is from a range (for continuous file system IDs) or a comma separated value (for file system IDs that are scattered) of target file system IDs to a target pool. For example, res_1~res_3:pool_1; res_4~res_9: pool_2;res_10~res_11:pool_3;res_12:pool_4.
Target file system access policy mapping	Display file system target access policy. Only Multiprotocol session will show the value, Cifs only and NFS only session will leave it blank. It is a semicolon separated list of source file system IDs and access policy pairs. For example ： "24~26:WINDOWS; 28,33~36,40:NATIVE;50,55:UNIX"
Target import interface	Target import interface identifier for data transfer.
Target default production port	Target production port identifier. The default port on which production interfaces are created.
Target production interface to port mapping	Target resources are only provisioned after you start the import session (by resuming it). Before the target production interfaces are provisioned, the mapping is from a list of source production interfaces to a target port. For example, if_6,if_7: spa_iom_0_eth0; if_9:spa_iom_0_eth1. After the target production interfaces are provisioned, the mapping is from a list of target production interfaces to a target port. For example, if_4,if_5:spa_iom_0_eth0; if_7:port spa_iom_0_eth1.
Target production interface to VLAN mapping	Target resources are only provisioned after you start the import session (by resuming it). Before the target production interfaces are provisioned, the mapping is from a list of source production interfaces to a target VLAN. For example, if_6: 6; if_9:9. After the target production interfaces are provisioned, the mapping is from a list of target production interfaces to a target VLAN. For example, if_4:4; if_7:7.
CIFS domain username	User name for authentication to Windows domain.
CIFS domain password	Password for authentication to Windows domain.
CIFS local administrator username	User name for authentication to SMB server on the source VDM (before the import session is started). This user account is imported to the destination NAS server.
CIFS local administrator password	Password for authentication to SMB server on the source VDM (before the import session is started). This user account is imported to the destination NAS server.