6-3 using tiered storage manager with psas, 7 performing a refresh, 7-1 how refresh works – HP StorageWorks XP10000 Disk Array User Manual

Page 22: Using tiered storage manager with psas, Performing a refresh, How refresh works

Advertising
background image

22

Table 1-2

Tiered Storage Manager Operations and Related User Types


Operation

System Administrator or
Storage Administrator


Guest

Delete

Volume

Y

N

Change

Attribute

Information

Y N

Delete

Y

N

Migration task

Create

Y

N

#

Reference

Detailed

Information

Y Y

Reference Search List

Y

Y

Execute

Y

N

Delete

Y

N

Cancel

Y

N

Legend:

Y

― Can operate N ― Cannot operate

#

― On a CLI client, you can create a migration task even when the user type is Guest.

1-6-3 Using Tiered Storage Manager with PSAs

Logical Partition (LPAR) is the generic name for the Cache Logical Partition (CLPR) and Storage Logical
Partition (SLPR) functions.

Tiered Storage Manager uses an SLPR administrator in addition to the administrator for the entire storage
subsystem. The SLPR administrator is called the Partition Storage Administrator (PSA).

In some cases, when a Device Manager user registered in Storage Navigator as a partition storage
administrator (PSA) adds a domain controller to Device Manager, the domain controller added to Device
Manager is called a domain controller for which the PSA is managing SLPR operations.

A domain controller for which the PSA is managing SLPR operations cannot be used as a storage domain for
Tiered Storage Manager.

Do not change a domain controller that Storage Administrator has registered in Tiered Storage Manager to a
domain controller for which the PSA is managing SLPR operations on Device Manager. In addition, in the
storage subsystem that performs LPAR operations, a candidate for the migration target volume is selected
from within the LPAR to which the migration source volume belongs. In a domain controller managed by the
Storage Administrator, a migration can be performed for volumes that have overlapping LPARs.

For details on the CLPR and SLPR, see the manual HP StorageWorks Command View XP Advanced Edition
Device Manager Web Client User's Guide
or the Virtual Partition Manager User's Guide.

1-7 Performing a Refresh

When you change storage configurations or finish performing a migration, you must update —meaning refresh
— information to reflect the latest status. You can view the latest refresh date and time in the List Objects –
Storage Domain Name subwindow of the Web client. You cannot perform most Tiered Storage Manager
operations during a refresh. This section describes the refresh operation, including:

How Refresh Works

When to Perform a Refresh

Refresh Types and Scopes

Refresh Status Information

Using Refresh to Detect Inconsistencies

1-7-1 How Refresh Works

Performing a refresh takes time because it updates repositories and cache information.

The repositories are databases that manage setup information for Tiered Storage Manager, Device Manager,
and Command View XP AE Suite Common Component. The repositories are managed by Command View XP
AE Suite Common Component.

The repository types are:

Repository for Tiered Storage Manager: Manages information defined for migration and the status of the
Tiered Storage Manager server.

Advertising