HP XP7 Storage - Manual (Page 106)

5 Provisioning operations with RAID Manager
This chapter describes storage provisioning operations with RAID Manager.
About provisioning operations
Provisioning operations can be performed using RAID Manager.
For details about provisioning, see the Provisioning Guide for the storage system.
NOTE: The operation of refreshing window on Remote Web Console or SVP might be delayed
while executing provisioning operation on RAID Manager. During maintenance work on the storage
system (SVP in modify mode), the command is rejected (2E10, 8000).
Overview of the configuration setting command
RAID Manager functions enable provisioning operations such as host setting, LDEV creation, and
device group creation. These operations are required for performing the data replication operations.
The is done by using the configuration setting command.
The configuration setting command is specified using the following syntax:
raidcom <action> <resource> <parameter>
The content of operation such as add or delete is specified in the action, and a resource object
such as LDEV or path is specified in the resource. The necessary value to operate the resource
object is specified in the parameter. For the details about contents of specification for the
configuration setting command, see HP XP7 RAID Manager Reference Guide.
Some provisioning operations take much processing time. Therefore RAID Manager provides two
ways to execute the configuration setting command: synchronously and asynchronously.
The processing difference between these two command types are described in “Synchronous
command processing” (page 106) and “Asynchronous command processing” (page 106) .
Synchronous command processing
In addition to the replication commands, the process is executed by synchronizing with a command
execution, and then returning a response after the processing is completed. When an error occurs,
the error is returned to RAID Manager at each occurrence.
Asynchronous command processing
When an asynchronous command is executed, the command is received at the storage system,
and a response is returned before the processing is executed. The actual processing is executed
asynchronously with command input.
The completion of the asynchronous command processing can be checked with the raidcom get
command_status command. Executing raidcom get command_status command after executing an
asynchronous command, the raidcom get command_status command is terminated after completing
all the asynchronous command processing.
When an error occurs by executing asynchronous command, the error information, such as the
total number of errors or error code (SSB1 and SSB2), is provided. After executing the asynchronous
command, execute raidcom get command_status command to check the error information if the
asynchronous command processing completed normally.
Error codes SSB1 and SSB2 are stored only at the first error occurrence. For the second and
subsequent occurrences, only the number of the error occurrence is stored with no error code.
Therefore, before executing an asynchronous command, reset the error information in the storage
106 Provisioning operations with RAID Manager