Data Migration Job Groups; Array Properties - HP StorageWorks 6400/8400 - Enterprise Virtual Array User Manual

Job priority 1 is highest and job priority 255 is lowest. After all the jobs are configured for serial
execution, you must schedule this batch of serially-scheduled jobs. The batch can be started immediately
or at a later time. The Serial Data Migration Jobs Options dialog box provides an easy way to start
or schedule the batch.
After the serial batch starts to run, all jobs having the highest priority are completed before the jobs
scheduled at the next priority level start to execute.
Only one serial schedule can be active at any time.

Data migration job groups

The mpx Manager for Data Migration Services uses the concept of job groups to associate data
migration jobs with user-defined groups. A job group allows better management of data migration
jobs. You can create a maximum of eight job groups. The mpx Manager also has commands to
remove and edit job groups.
The groups can be classified for data migration jobs related to application type or server class. For
example, a data migration job related to the Microsoft Exchange application could be part of a group
named Exchange, and a data migration job related to a payroll application could be part of a group
named Payroll. The data migration jobs are tracked separately within each group. You can schedule
the data migration of all LUNs related to one application, followed by other applications.
If no group is defined, all jobs are assigned to the default group, Group 0. You cannot delete Group
0.

Array properties

DMS discovers the Fibre Channel target ports and forms an array when at least one data LUN is
presented to the DMS running in the MPX200 from that array. If no data LUN is presented to the
MPX200, all array ports are shown in the mpx Manager GUI and CLI as target ports. After the LUNs
are presented to the MPX200, a target rescan is required to form an array (see
DMS classifies the discovered storage array controllers into two categories: targets and arrays. All
array controller ports are initially identified as targets by the MPX200. After a single data LUN is
detected on the target, DMS forms an entity called an array. A specific LUN seen through multiple
Fibre Channel target ports are grouped under a single array.
Configure the array entity created by the DMS for the following attributes:
• Symbolic name: When forming an array, the MPX200 assigns a symbolic name to the array. HP
recommends that you assign a more meaningful name to the array because the migration logs
identify the source and destination LUNs with the symbolic names of the source and destination
arrays.
• Array type: DMS requires the classification of each array as either Source, Destination, or
Source+Destination. During the creation of migration jobs, the Data Migration wizard restricts the
assignment of a source LUN only from arrays that have an attribute Source and assignment of a
destination LUN only from the arrays with attribute Destination. Use the array attribute
Source+Destination only when you need to create copies of a LUN on the same array.
Select the array type attribute None to exclude the storage array from participating in data migra-
tion. The MPX200 simultaneously supports both iSCSI connectivity and data migration service.
Typically, you would use the None attribute when the MPX200 is used to provide only iSCSI
connectivity for that storage array.
• Array bandwidth: This feature is applied only to a source array. This value indicates the maximum
bandwidth available from the array for a data migration task. The bandwidth is computed over
all paths. The MPX200 uses only the user-assigned array bandwidth to migrate the data. This allows
target rescan).
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