Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 3: External Storage and SAN Subsystems 45/116
9es3s1c3.doc
Rev 5.9
02/12/2003
Navisphere lets administrators configure the storage systems on local and remote servers. Using
Navisphere, they can:
•
Set the configuration, memory, and cache properties for storage systems.
•
Combine physical disks into RAID groups and create logical units (LUNs) on those RAID Groups
on storage systems with RAID Group support.
•
Combine physical disks into LUN on storage systems without RAID Group support.
•
Change the user-defined parameters of LUNs, such as their rebuild time and storage processor (SP)
owner.
•
Update the Licensed Internal Code (LIC) and programmable read-only memory (PROM) code that
controls storage systems.
Navisphere lets administrators monitor faults and problems with storage systems on local and remote
servers. Using Navisphere they can:
•
Monitor the status of the storage system and the physical disks and other customer-replaceable
units (CRUs) that comprise it and the RAID Groups and LUNs on it.
•
Monitor the status of ATF software on the storage-system server.
Navisphere Manager Version 5 supports all DAS models and all features:
•
DAS 5300, 5700, 4500, 4700 and 4700-2
•
management of Access Logix, SnapView, MirrorView
•
capability to manage multiple DAS connected to multiple servers.
Navisphere Manager Version 4 and Navisphere Supervisor have the following limitations:
•
DAS 4700 (or later) not supported
•
Access Logix, SnapView and MirrorView not supported
•
Management of a single DAS at a time.
However, for compatibility reasons, Bull will still provide the latest available version of Navisphere
Supervisor.
Regarding the high availability aspect, a failure of the Navisphere Manager for AIX does not affect
DAS operations; it is fully transparent to the applications using the managed DAS and does not
prevent ATF operations.
Navisphere Manager vs. Navisphere Supervisor
The difference between managing a single or multiple DAS is easy to understand. When starting the
Navisphere Supervisor, the administrator must select a server on the LAN, and then, one of the DAS
attached to this server. To manage another DAS, the administrator must exit the tools and restart it.
The monitoring is limited to the DAS currently selected. With Navisphere Manager, a window allows
to browse all the known servers and disk arrays. It is also possible to have simultaneously two
windows to compare configuration parameters of two different DAS. The monitoring is done for all
the DAS, and there is a global indicator telling that a problem occurred in one of the managed DAS.
Thus the Navisphere Manager is better suited to the management of multiple DAS than the Navisphere
Supervisor.