Troubleshooting the A2 or B2 FC Link

The A2 or B2 link is the FC link from the first switch to the virtualization engine. This link exists in the Sun StorEdge 6900 Series only. An error with the FC link can cause a path to go offline.

FIGURE 5-6and FIGURE 5-7are examples of A2 or B2 Link Notification Events.

From root Tue Jan 8 18:39:48 2002

Date: Tue, 8 Jan 2002 18:39:47 -0700 (MST)

Message-Id: <200201090139.g091dlg07015@diag.xxxxx.xxx.com>

From: Storage Automated Diagnostic Environment.Agent

Subject: Message from ’diag.xxxxx.xxx.com’ (2.0.B2.002)

Content-Length: 2742

You requested the following events be forwarded to you from ’diag.xxxxx.xxx.com’.

Site

:

FSDE LAB Broomfield CO

Source

:

diag226.xxxxx.xxx.com

Severity :

Normal

 

Category :

Message

Key: message:diag.xxxxx.xxx.com

EventType:

LogEvent.driver.Fabric_Warning

EventTime:

01/08/2002 17:34:47

Found 1 ’driver.Fabric_Warning’ warning(s) in logfile: /var/adm/messages on diag.xxxxx.xxx.com (id=80fee746):

Info: Fabric warning

Jan 8 17:34:36 WWN:2b000060220041f4 diag.xxxxx.xxx.com fp: [ID 517869

kern.warning] WARNING: fp(0): N_x Port with D_ID=108000, PWWN=2b000060220041f4 disappeared from fabric

<snip>

multipath status: degraded, path /pci@6,4000/SUNW,qlc@2/fp@0,0 (fp0) to

target address: 2b000060220041f4,1 is offline

Jan 8 17:34:55 WWN:2b000060220041f4

diag.xxxxx.xxx.com

mpxio: [ID 779286 kern.info] /scsi_vhci/ ssd@g29000060220041f96257354230303052 (ssd18)

multipath status: degraded, path /pci@6,4000/SUNW,qlc@2/fp@0,0 (fp0) to

target address: 2b000060220041f4,0 is offline

FIGURE 5-6A2 or B2 FC Link Host-Side Event

Chapter 5 Troubleshooting the Fibre Channel (FC) Links 49

Sun Proprietary/Confidential: Internal Use Only

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Image 69
Sun Microsystems 6900, 3900 manual Troubleshooting the A2 or B2 FC Link, 6A2 or B2 FC Link Host-Side Event

6900, 3900 specifications

Sun Microsystems was a pioneering force in the computer industry, especially known for its innovative workstations and servers during the late 20th century. Among its notable product lines were the Sun 6900 and 3900 series, which played a critical role in enterprise computing, offering substantial advancements in performance and reliability.

The Sun 6900, also known as the Starfire, was an advanced multiprocessor server introduced in the mid-1990s. One of its standout features was its ability to support up to 64 processors, making it one of the most powerful systems of its time. This scalability was made possible by Sun’s innovative design, which utilized a high-bandwidth crossbar switch architecture that facilitated fast communication between processors, ensuring minimal latency and optimal performance for demanding applications.

The 6900 was built on the UltraSPARC architecture, which provided support for 64-bit processing. This was a significant advancement over 32-bit systems, allowing for improved memory addressing and overall application performance. The server supported large amounts of RAM, up to 512 GB, which was critical for memory-intensive tasks such as database management and scientific computation.

On the other hand, the Sun 3900 series catered to a different segment of the market, targeting businesses requiring robust, yet cost-effective server solutions. The 3900 was designed primarily as a mid-range server and offered impressive reliability features such as hot-swappable components and redundant power supplies. It came equipped with the SPARC architecture, ensuring compatibility with a wide array of software applications.

Both the 6900 and 3900 series made extensive use of Sun’s Solaris operating system, which was known for its stability and security. This operating system allowed for seamless multitasking and efficient resource management, a necessity for enterprise environments where uptime was critical.

In terms of connectivity, both systems supported advanced networking capabilities, including Fast Ethernet and Gigabit Ethernet options, facilitating improved data throughput. Their modular designs allowed for easy upgrades, ensuring that organizations could adapt to changing technological demands without major overhauls.

Overall, the Sun 6900 and 3900 series represented a significant leap forward in server technology, combining powerful processing capabilities, advanced scalability, and reliable performance. These systems played a crucial role in establishing Sun Microsystems as a leader in the enterprise computing arena during their era.