Dell EMC Unity™ Family Third-Party System Migration using SAN Copy Pull User Guide

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Manage generic block resource import sessions

This command imports generic block resources (such as LUNS, volumes, or virtual disks) from a third-party block storage system which provides a Fibre Channel (FC) or iSCSI interface to its block devices (LUNs). It uses the SAN Copy Pull feature running on the local storage system.

If the iSCSI protocol is used, iSCSI connections and connection paths must have been created and configured before you can manage generic import sessions. Refer to the "Manage iSCSI connections" and "Manage iSCSI connection paths" sections in this chapter for more information about configuring iSCSI connections and connection paths.

The following table lists the attributes for import sessions:

Table 1. Import session attributes
Attribute	Description
ID	ID of the import session.
Name	Name of the import session.
Description	Description of the 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 in one of the following states: Session is operating normally. Session is completed. Session is cancelled. OK_BUT (7) — Session is in one of the following states: Session was recovered on SP reboot. Session is queued. Session is paused. Degraded/Warning (10) — Session is in one of the following states: Auto-recovery is in progress. Recovery on SP reboot. Waiting on LUN trespass. Minor failure (15) — The session failed either because an SP is down or the session was aborted. Major failure — The session failed for one of the following reasons: A bad block was encountered on the source block resource. A restart on auto recovery failed. The session was halted on an SP reboot. The destination LUN and the import session are on different SPs. The destination LUN has been trespassed. Critical failure — The session failed for one of the following reasons: Either the source block resource or destination LUN was not found. Either the source block resource or destination LUN is inaccessible. The source block resource has an invalid connection type. The source block resource failed. The destination LUN is inconsistent. Non-recoverable failure (30) — A non-recoverable error caused the session to fail.
Health details	Additional health information. See Appendix A, Reference, for details.
State	State of the import session. Valid values are: Initialized Pending Running Paused Failed Completed Cancelled
SP owner	Default destination LUN SP owner. Valid values are: SPA SPB
Source system name	Remote system name provided by the user when the session was created.
Source LUN WWN	Source block resource World Wide Name (WWN). The WWN can be passed with the following four prefixes: wwn. nna. wwn-0x. 0x. It is possible to pass the WWN without any prefixes. For example, the following notations of WWN can be used: 50060485c5edaa5d—16 hexadecimal chars 50:06:04:85:c5:ed:aa:5d—Bytes separated by colons 50:6:4:85:c5:ed:aa:5d—Leading nibble of the byte dropped if the nibble is zero 50-06-04-85-c5-ed-aa-5d—Bytes separated by dashes NOTE If the system rejects the WWN as non-recognizable, you can convert the WWN manually to the Dell EMC Unity system form, such as 60:00:01:6F..
Target resource	CLI ID of the destination storage resource.
Target resource name	Name of the destination storage resource.
Target resource type	Type of the destination resource. Valid values are: LUN VMware VMFS
Size of source	Size of data to transfer from the source block resource to the destination LUN.
Size copied	Total bytes transferred from the source block resource to the destination LUN.
Size remaining	Current remaining size in bytes to be transferred from the source block resource to the destination LUN.
Percent completed	Percentage of bytes transferred from the source block resource to the destination LUN.
Start time	Start time of the copying process.
Estimated time to complete	Current estimated time to complete the copying of the source block resource to the destination LUN.
Throttle	Reduces CPU load and I/O latency on the destination system. The lower the throttle value, the less impact on the host latency and the longer the import will take. Valid values are: Low Medium High (default)