aggregate the individual files into large individual files before moving them into the HPSS name space.
The following planning steps must be carefully considered for the HPSS infrastructure configuration and the HPSS configuration phases:
1.Identify the site’s storage requirements and policies, such as the initial storage system size, anticipated growth, usage trends, average file size, expected throughput, backup policy, and availability. For more information, see Section 3.2: Requirements and Intended Uses for HPSS on page 56.
2.Define the architecture of the entire HPSS system to satisfy the above requirements. The planning should:
•Identify the nodes to be configured as part of the HPSS system.
•Identify the disk and tape storage devices to be configured as part of the HPSS system and the nodes/networks to which each of the devices will be attached. Storage devices can be assigned to a number of nodes to allow data transfers to utilize the devices in parallel without being constrained by the resources of a single node. This capability also allows the administrator to configure the HPSS system to match the device performance with the network performance used to transfer the data between the HPSS Movers and the end users (or other HPSS Movers in the case of internal HPSS data movement for migration and staging). Refer to Section 3.4 : Hardware Considerations on page 62 for more discussions on the storage devices and networks supported by HPSS.
•Identify the HPSS subsystems to be configured and how resources will be allocated among them. Refer to Section 3.8: Storage Subsystem Considerations on page 94 for more discussion on subsystems.
•Identify the HPSS servers to be configured and the node where each of the servers will run. Refer to Section 3.7: HPSS Server Considerations on page 80 for more discussions on the HPSS server configuration.
•Identify the HPSS user interfaces (e.g. FTP, PFTP, Client API) to be configured and the nodes where the components of each user interface will run. Refer to Section 3.6: HPSS Interface Considerations on page 79 for more discussion on the user interfaces supported by HPSS.
3.Ensure that the prerequisite software has been obtained, installed, and configured properly in order to satisfy the target HPSS architecture. Refer to Section 3.3: Prerequisite Software Considerations on page 58 for more information on the HPSS prerequisite software requirements.
4.Determine the DB2 disk storage space needed to satisfy the requirements of the HPSS system, and verify there is sufficient free space in the file systems to meet those needs. Refer to Section 3.5.4: HPSS Metadata Space on page 74 for more discussions of metadata sizing requirements.
5.Verify that each of the identified nodes has sufficient resources to handle the work loads to be imposed on the node. Refer to Section 3.5.5: System Memory and Disk Space on page 78 for more discussions on the system resource requirements.
6.Plan the design of the HPSS storage characteristics and HPSS storage space to satisfy the site’s requirements:
•Plan for file families, if any. Refer to Section 3.10.4: File Families on page 112 for
HPSS Installation Guide | July 2008 |
Release 6.2 (Revision 2.0) | 53 |
