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2006-09-06 15:46:15
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Upon completion of this module, you should be able to :
Describe the features of the Sun StorEdge T3 Array
Identify each field-replaceable unit(FRU) in the Sun StorEdge T3 Array
Describe the Sun StorEdge T3 array architecture
Describe the supported configurations of the Sun StorEdge T3 Array
Describe the partner group failover and recovery operations of the Sun StorEdge T3 Array
Identify Sun StorEdge T3 Array FRU functionality
Create an administrative connection to the Sun StorEdge T3 Arrey
Identify the software applications supporting the Sun StorEdge T3 Array
Use the plug-in Silicon Operating System (pSOS) software to identify the FRU components
Identify FRU failures with pSOS commands
Confirm replacement of FRUs with pSOS commands
Sun StorEdge T3 Array Product Description
Fibre Channel disk storage solution
Up to nine 36.4Gbyte drives in each array
RAID Levels 0, 1, and 5 are supported
Up to 256 Mbytes of data cache memory
All FRUs are hot-pluggable
Disk Array Components
The Sun StorEdge T3 Array contains four different hot-pluggable FRUs:
Disk drives
RAID controller card
Unit interconnect controller card
Power and cooling unit
All components plug into a common center plane
System Architecture
Modular building block of disk storage
Switched-loop architecture
Independent data and administrative paths
The data path is 100 Mbyte-per-second Fibre Channel
The administrative path is networked-based and serial-based(RS-232)
Two separate serial buses support control and sense operations
Supported Configurations
Single controller unit:
Standalone array with a single hardware RAID cached controller and nine disk drives
Partner group:
Two controller units paired using interconnect cable
Provides redundant hardware RAID controllers with mirrored cached and redundant host channel
Supported Platforms and Software
The Sun StorEdge T3 Array has been successfully tested on:
Sun Enterprise 220R, 250, 420R, 450, 3x00-6x00, and 10000 servers
All releases of Solaris 7 and 8 Operating Environments
Veritas Volume Manager 3.0.2c or higher
Veritas Dynamic Multi-Pathing(DMP)
Solaris Alternate Pathing(AP) 2.3.1 or higher
Partner Group Failover Operations
Automatic data path failover occurs if hardware failures occur in either a:
Host path connected to a Sun StorEdge T3 Array
Sun StorEdge T3 Array controller
Solaris AP or Veritas DMP provides host-channel redundancy between the Sun StorEdge T3 Array and the Solaris host
Introduction to plug-in Silicon Operating System(pSOS)
pSOS is the operating system for the Sun StorEdge T3 Array Controller
pSOS features include:
Command-line interface(CLI)
Daemon processes
A login account
Hierarchical file system structure
Although the pSOS is similar to UNIX, it is extremely limited in its implementation. The pSOS operating system limits the Sun StorEdge T3 Array administration functionality to :
Assigning password to the root login
Attaching the Sun StorEdge T3 Array to a network
Enabling Sun StorEdge T3 Array features
Upgrading Sun StorEdge T3 Array firmware
Defining and mounting RAID volumes
Checking Sun StorEdge T3 Array FRU status
Checking Status
Array status checking procedures, using pSOS CLI commands, are available for the following:
Determing failover- sys stat, port listmap
Checking drive status- vol stat
Checking the hot spare- vol list, vol stat
Checking data parity- vol verify
Checking the battery- id read unpcun, refresh
Displaying FRU information- fru list
Checking the FRU status- fru stat
Process monitoring- proc list, proc kill PID
Replacing Failed FRUs
Check the current firmware level using the ver and fru list commands before replacing a failed FRU
Make sure you have the replacement FRU avaliable before removing the failed FRU
The array powers off 30 minutes after a FRU is removed and not replaced
When replacing a failed drive, if autorecon is not enabled or did not start, begin a manual rebuild:
t3:/:<34>vol recon volume-name from_standby
If the firmware level of the new FRU is a later release, you must upgrade all firmware
