Cisco: fan speed high and will not return to normal limits

Article Number: 492596 Article Version: 2 Article Type: Break Fix



Connectrix MDS-9148S

Fan speed on 9148S goes high after 30 minutes, and will not return to normal.

The cause of a fan speed issue is seen as:

1) High system temperature (could be blockage but not necessarily so)

2) Any SFP temp alarm

3) Any system fan failure

There was no observed blockage or impediment.

There were no sfp alarm, nor a system fan failure.

Customer replaced sfp with long wave GBIC (Cisco compatible).

This sfp was not able to be properly read by the switch, and caused the fan speed issue.

replace the original sfp with Cisco “compatible” long wave GBIC.

use Cisco part. Upon replacing or removing sfp, speed returned to normal limits within 30 mins.

Related:

Re: Gen6 serial port different to Gen5?

pwp,



Are you using a NULL modem cable? They don’t work with Gen6 nodes.

simple 3-wire null modem cable that doesn’t support hardware flow control:

(From https://en.wikipedia.org/wiki/Null_modem)

No hardware handshaking

The simplest type of serial cable has no hardware handshaking. This cable has only the data and signal ground wires connected. All of the other pins have no connection. With this type of cable flow control has to be implemented in the software. The use of this cable is restricted to data-traffic only on its cross-connected Rx and Tx lines. This cable can also be used in devices that do not need or make use of modem control signals.

Hardware flow control was listed in the requirements for gen5 and earlier too, but somehow that cable was working with those nodes.



Full handshaking

This cable is incompatible with the previous types of cables’ hardware flow control, due to a crossing of its RTS/CTS pins. With suitable software, the cable is capable of much higher speeds than its predecessors. It also supports software flow control.

This is the one that works:

Related:

Re: Does HBA /Cisco chassis and FI compatible with target brocade FOS 8.0.2d

I have Brocade Switches 6505B running with 7.2.1d FOS Version. So I’m going to upgrade to target code 8.0.2d using below sequence upgrade path

Steps: 7.2.1d -> 7.3.2b -> 7.4.1d -> 8.0.2d

Before upgrading Target code FOS 8.0.2d,I was checking compatibility of HBA driver versions which should supported by target code FOS 8.0.2d,but I not finding any such compatibility details in the release notes (https://download.emc.com/downloads/DL87413_Fabric_OS_8.0.2d.zip?source=OLS)

We have servers/host connected to switch running with below HBA versions So please can someone guide/correct me what is minimum/recommended firmware and driver version for below HBA supported by target code v8.0.2d

QLE2562 FW:v5.09.00 DVR:v1.1.7.0″

HPAJ764A FW:v8.01.02 DVR:v1.1.55.0″

fnic (Running with different firmware and driver versions such as v1.6.0.17a, v1.6.0.28,etc)

And also does below Cisco chassis and FI is compatible with target code ? as We have few of Cisco Blades which are part of UCSM (3.1(3c) connected to FC Switch via Fabric Interconnects.

IOM: Cisco UCS 2208XP(IOM)

Fabric Interconnect: Cisco UCS 6248UP

Thanks in advance

Related:

(4.19.18) Cryptovest: Huawei Brings Out Blockchain-as-a-Service Offering

Huawei, the company known for being one of China’s most successful smartphone manufacturers, announced this week the release of a blockchain-as-a-service platform.

Dubbed “Blockchain Cloud Service,” the platform came just after Huawei started working with Hyperledger on a blockchain benchmarking tool known as Caliper.

More here.

Related:

Chinese telecom titan Huawei launches Blockchain Service platform

Chinese telecom giant Huawei this week launched its blockchain-as-a service (BaaS) platform, CoinDesk reported.

Called ‘Blockchain Service’ or BCS, the new platform would help companies build smart contracts on top a distributed ledger network for a number of use cases.

“Blockchain Service is a high-performance, high-availability, and high-security blockchain technology platform service for enterprises and developers. It can help companies and developers create, deploy and deploy quickly and inexpensively on Huawei Cloud,” the website states.

Based on Hyperledger Fabric 1.0, the platform currently allows clients to build smart contract applications for areas including supply chain, tokenized securities assets, ID verification, and financial auditing. Huawei has been a member of, as well as a contributor to, the Hyperledger blockchain project since October 2016.

Huawei has also release the project’s whitepaper this month. Designed for enterprises, the BCS can be “integrated with existing Huawei Cloud products and solutions to support enterprises move towards the era of cloud in a secure, efficient, and tamper-proof approach, and quickly deploy new solutions and applications.”

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Related:

Does HBA /Cisco chassis and FI compatible with target brocade FOS 8.0.2d

I have Brocade Switches 6505B running with 7.2.1d FOS Version. So I’m going to upgrade to target code 8.0.2d using below sequence upgrade path

Steps: 7.2.1d -> 7.3.2b -> 7.4.1d -> 8.0.2d

Before upgrading Target code FOS 8.0.2d,I was checking compatibility of HBA driver versions which should supported by target code FOS 8.0.2d,but I not finding any such compatibility details in the release notes (https://download.emc.com/downloads/DL87413_Fabric_OS_8.0.2d.zip?source=OLS)

We have servers/host connected to switch running with below HBA versions So please can someone guide/correct me what is minimum/recommended firmware and driver version for below HBA supported by target code v8.0.2d

QLE2562 FW:v5.09.00 DVR:v1.1.7.0″

HPAJ764A FW:v8.01.02 DVR:v1.1.55.0″

fnic (Running with different firmware and driver versions such as v1.6.0.17a, v1.6.0.28,etc)

And also does below Cisco chassis and FI is compatible with target code ? as We have few of Cisco Blades which are part of UCSM (3.1(3c) connected to FC Switch via Fabric Interconnects.

IOM: Cisco UCS 2208XP(IOM)

Fabric Interconnect: Cisco UCS 6248UP

Thanks in advance

Related:

Re: ScaleIO support for 512e (4K) drives

Hi,

My customer is looking to deploy scaleIO on existing Cisco hardware with 4K drives installed.

I know that native 4K is not currently supported, but these drives (mode number HD18TB10KS4K) also support 512e



Does the current release of ScaleIO support 4K drives with 512e?

What needs to be done in way of configuration to enable this?

What are the gotchas?



thanks



Phil

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Huawei Developing Solution For Evaluating Blockchain Performance

Since May 2017, the Chinese telecommunications hardware giant Huawei has been developing a set of open-source software solutions collectively known as Project Caliper which, it hopes, will be able to evaluate the performance of different blockchain platforms based on a variety of metrics.

According to a Google Doc ostensibly written by Huawei engineers Haojun Zhou and Victor Hu, the performance indicators that the system can currently measure are “Success Rate;” transactions per second; “Transaction confirmation latency;” and “Resource consumption (CPU, Memory, Network IO,…).” Hu told ETHNews that although the Google document could be edited publicly, the information in it pertaining to the project was accurate at the time that ETHNews accessed it.

The project’s goal is to create a “commonly accepted blockchain benchmark framework” that actors in the blockchain space can agree is a fair and accurate way to assess the relative strengths of different blockchain environments. Zhao and Hu, who note that no such framework currently exists, report that the team at Huawei has been discussing the project with Hyperledger‘s Performance and Scalability Working Group (PSWG), in addition to using the group’s “definitions, metrics and terminology” as a guide in designing its solution.

Project Caliper is not “intended to be an authoritative performance assessment,” nor is it expected to support the publication of results for the sake of comparing different blockchain platforms anytime soon. Instead, its creators hope that it will help members of the blockchain community test blockchain environments themselves, so that they can be better informed as they choose which environments would best suit their projects.

Huawei will consider the project a success if it “attracts many users within or out of the community to use it as the benchmark framework.” By the same token, if a competing project “shows up and the community is more interested in putting more resource on [sic] it over Caliper, a merge should occur and development will be moved to the new project.”

The software currently interoperates with Hyperledger Fabric v1.0.5, Hyperledger Sawtooth Lake v0.8, and Hyperledger Iroha, and its developers hope to investigate and begin trying to integrate with “non-hyperledger DLTs” by December 2018.

The project’s “adaptation layer,” which Zhao and Hu tout as its “key component,” is the software that actually interfaces with other blockchains. It apparently has the capacity to “install” and “invoke” EDCCs, also known as smart contracts, and to “query state from the ledger.”

In addition to Huawei and Hyperledger’s PSGW, the project’s current participants include Hyperchain, Oracle, Bitwise, Soramitsu, IBM, and the Budapest University of Technology and Economics.

Other leading Chinese tech firms, notably Alibaba, Baidu, and Tencent, have also made forays into the blockchain space.

Related:

Is China ready for what US could unleash in trade war?

As rumblings of a trade war between Washington and Beijing grow louder, the Trump administration appears to be gearing up for renewed confrontation with China.

The signs have been clear. Last month, Donald Trump’s move to slap punitive tariffs on solar panels and washing machines, mostly on imports from China, was an opening salvo, while the “renegotiation” of the Nafta and Korea-US (KORUS) free trade agreements has drawn the most attention.

It’s a matter of time before Trump and China embrace the TPP

But these moves are just a small part of the policy arsenal Washington could unleash under the banner of “national security interests” to monitor, control and block commercial activities between Chinese and American entities.

Watch: Trump’s new tariffs spark outcry in Asia

This month Wendy Cutler, a former US government trade official, made an ominous warning towards China, saying the tariffs were “just the beginning of a series of announcements that will be coming”.

There are a variety of show-stopping actions the administration could take, with little or no warning, including: blocking foreign acquisitions or deals with firms and industries Washington considers “nationally sensitive”; new or increased sanctions against individuals, companies and countries; and introducing new export licensing requirements for seemingly benign materials and components – causing rapid disruption to global supply chains.

Locked and loaded, China and the US are heading into a trade war

These scenarios fall under the lengthening shadow of what are known as strategic industries and economic security, through which more than a dozen US federal agencies enforce hundreds of regulations and restrictions.

Any enterprise that fails to realise the gravity of these measures will have calamity visited upon it. Take the example of Chinese telecoms firm ZTE, which recently paid out US$892.4 million in penalties to US government agencies. ZTE violated export controls and sanctions regulations on shipments of US origin materials to Iran and North Korea.

Despite being major trading partners – with all of the benefits this brings to both sides – Beijing and Washington are both pursuing increasingly self-serving agendas based on national security, and that seems destined to intensify.

Trump’s first year failed the China test. His second looks far worse

Important technology sectors have been pulled into the fray and the rivalry has spilled over into cyber warfare, espionage and the militarisation of space.

The consequences of this growing power rivalry are deadly serious. Recent reports of a supposed spy-killing campaign in China, reportedly instigated by Jerry Chun Shing Lee, a CIA-agent-turned mole – are a sobering reminder of this reality.

In the latest round of blocked Chinese business ventures, the US Federal Communications Commission (FCC) last month forced AT&T to back out of a major deal with the Chinese smartphone maker Huawei.

The deal would have made Huawei, the world’s largest maker of telecommunications equipment, a major supplier of phones to AT&T’s customers. However, the firm has long been suspected by US lawmakers of links to Beijing’s economic and political policy apparatus. Huawei’s founder, Ren Zhengfei, was an officer in the Chinese military.

Why a cooling in China’s economy would be a good thing

Although Huawei is a private company, most US authorities are convinced that virtually all big Chinese companies have murky ties to Beijing’s power circle. The thought of millions of American consumers using Chinese-made phones with secret “back doors” and data-tracking features written into the operating systems was enough to kill the deal.

Since 2012, Huawei had been blocked from selling network equipment to US telecommunications carriers, so the latest rebuff on telephone sales has dealt a major blow to the company, essentially locking it out of the world’s largest economy.

Another recent deal blocked on similar grounds saw Ant Financial, the fintech arm of Chinese internet giant Alibaba, which also owns the South China Morning Post, being barred from purchasing Moneygram, the US money-transfer company. The deal, worth US$1.2 billion, was killed by the Committee of Foreign Investments in the US, on the grounds that Chinese interests would have access to the private data of millions of Americans.

Sovereign wealth funds: just a way for China and Russia to flex muscles?

In the current climate in Washington, espionage and sabotage are on equal footing with the fear of losing competitive advantage in critical sectors, particularly in semi-conductors, artificial intelligence and robotics.

In September, the Trump administration took its first major action when it blocked Canyon Bridge Fund – owned by Chinese state-backed entities – from buying Lattice Semiconductor Corporation, a cutting edge American tech company. This trend will continue into 2018, and probably intensify, as Chinese firms increasingly target hi-tech acquisitions.

Watch: China-US relations in Trump era

Beijing, of course, is no stranger to blocking foreign companies from operating in its markets. Google, Facebook and Twitter have all been blocked from providing services in rulings motivated as much by security concerns as they were designed to protect local Chinese firms.

The only game in town? Why China will keep buying US Treasury debt

The Chinese are also said to have reacted to Edward Snowden’s divulgence of the NSA’s surveillance activities in China by excluding US vendors Cisco and Apple from approved government supplier lists.

How far will this all go? And will claims of national security serve as instruments of trade protectionism? No doubt, they will.

International businesses should get ready for a bumpy ride ahead.

Alex Capri is a visiting fellow at the Department of Analytics & Operations at National University of Singapore Business School

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