Dell Sm Bus Controller

[Skye Severy]

There is no reconfiguration for the replacement of the battery. There is no configuration data being maintained by the battery, it is simply there to preserve cache data long enough to write to disk. The configuration is stored on the card and within the drives.

Best will be to check the config. Can you restart both servers ??? on the POST message you should see which RAID controllers you have exactly. Or just connect to iDRAC and all the info should be there as well

The Dell Container Storage Modules Operator is a Kubernetes Operator, which can be used to install and manage the CSI Drivers and CSM Modules provided by Dell for various storage platforms. This operator is available as a community operator for upstream Kubernetes and can be deployed using OperatorHub.io. The operator can be installed using OLM (Operator Lifecycle Manager) or manually.

The installation process involves the creation of a Subscription object either via the OperatorHub UI or using kubectl/oc. While creating the Subscription you can set the Approval strategy for the InstallPlan for the operator to:

NOTE: Dell CSM Operator is distributed as both Certified & Community editions. Both editions have the same codebase and are supported by Dell Technologies, the only difference is that the Certified version is validated by RedHat. The Certified version is often released couple of days/weeks after the Community version.

Here is the output for preparing the bundle for installation (localregistry:5000 refers to an image registry accessible to Kubernetes/OpenShift. dell-csm-operator refers to the folder created within the registry.):

Now that the required images are available and the Operator is installed, you can proceed to install the driver by executing kubectl create -f . Manifests for all the supported drivers will be available inside the samples directory. Using Unity XT as an example

The Update approval (InstallPlan in OLM terms) strategy plays a role while upgrading dell-csm-operator on OpenShift. This option can be set during installation of dell-csm-operator on OpenShift via the console and can be either set to Manual or Automatic.

As part of the Dell CSM Operator installation, a CRD representing configuration for the CSI Driver and CSM Modules is also installed.containerstoragemodule CRD is installed in API Group storage.dell.com.

tolerations - List of tolerations which should be applied to the driver StatefulSet/Deployment and DaemonSet. It should be set separately in the controller and node sections if you want separate set of tolerations for them.

During the process, news hit that the President of the Dell EMC Division responsible for DSSD, C J Desai, had quit, and then that Bill Moore, President of DSSD, had also quit. Is there an issue over DSSD's future?

Mike Shapiro: As a general statement, NVMe drives offer higher IOPS and bandwidth capability, but they also consume fewer CPU cycles per IOP on a host or storage controller (by running a far simpler software stack than does SCSI/SAS/SATA). So depending on how such drives are used in each product line, and in what quantity, and other system design properties, they may or may not require new controllers.

Secondly, systems that use a modular architecture of controllers and drives, such as VMAX, can incorporate NVMe without needing new controllers. VMAX currently uses NVMe within its controllers and due to its modular architecture the VMAX architecture will be able to take advantage of NVMe drives without waiting for next generation controllers.

Mike Shapiro: For dual-controller HA systems, of which we have many in the Dell EMC portfolio, we certainly will provide dual-port NVMe drives at affordable cost. The hardware cost for the drives is essentially no different for such drives: the flash media is the same as for any SSD, and PCIe NVMe controller ASICs all provide PCIe lanes and endpoints sufficient for dual-porting.

So as the NVMe ecosystem of servers and drive enclosures rolls out, we expect dual-port NVMe drives to be available everywhere we see dual-port SAS drives today and at essentially the same cost structure as SAS dual-port SSDs. We believe that in the 2017-18 timeframe dual-port NVMe drives will be comparable in price to their SAS counterparts.

El Reg: Are customers ready to adapt NVMeF array-accessing servers with new HBAs and, for ROCE, DCB switches and dealing with end-to-end congestion management? Do they need routability with ROCE?

Mike Shapiro: There are multiple pieces to the NVMeF readiness: one is the switch ecosystem, where we do already see widespread deployment of DCB-capable switches. Two is client-side RDMA NICs, where we are seeing a set of new chips available in 2016-2017 that will provide low-cost RDMA NICs for Ethernet (including both RoCE and iWarp options), Omnipath, and Infiniband.

Three is host software being available in all operating systems: since the NVMeF spec was only recently finished, this is something we expect to mature rapidly over the first half of 2017. So all the necessary pieces for readiness are happening with significant industry momentum behind NVMeF.

We do expect for Ethernet that most customers will use RoCEv2 which is routable, although not all solutions require routability. As an example, many high-performance storage clusters might consist of only dozens of servers and shared storage in a handful of racks, and therefore not require routing. Single-rack solutions can be built today from our DSSD product line, using NVMe over shared PCIe as a fabric, which is the fastest possible solution for single-rack and similarly does not require external switches or routers.

Solutions that require wide-area routing will push the industry to continue to work on end-to-end congestion management for RDMA, and Dell EMC is participating in multiple hardware and software efforts related to this area. Dell EMC is in a great position to enable industry adoption through its end-to-end offerings across servers, networking, storage and management software.

Mike Shapiro: First, essentially all enterprise storage controllers provide caching in some form, whether it be for metadata or data. Workloads that have higher locality greatly benefit from this cache to improve application response time. The new NVDIMM technology provides the ability to increase the amount of cache by providing higher density memory at lower cost.

So in places where DRAM caching is used today and it would benefit to significantly expand the cache, these technologies may find a home in future products. We are always looking at new ways to expand caches with these types of DIMM alternatives where the resulting price/performance of the system is benefited.

Second, 3D XPoint technology will also offer opportunities for performance improvements as a high-speed tier for user data. VMAX is uniquely positioned to add next-generation memory tiering due to the built-in performance-based tiering feature of the VMAX architecture. And performance-focused products such as DSSD will incorporate next-generation memory in the form of new storage modules.

Mike Shapiro: Yes, one can imagine scenarios where that would be of benefit, just as in previous product generations it has been useful to speak FC to an array that no longer contains FC connected drives. Fundamentally once customers choose an overall server/storage deployment model, it will be convenient to make other types of products that augment that deployment plug into the environment using the same protocol.

For customers who move to NVMeF in the future to gain advantages of high-speed networks with RDMA and converged storage and network traffic, it might well make sense to provide NVMeF connectivity not just to high-speed data with NVMe drives, but other kinds of services like a data lake, backed by non-NVMe drives on non-Flash media, or by a hybrid pool.

Mike Shapiro: At the start of 2016, Dell EMC launched the industry's first NVMe enterprise shared storage system, the DSSD D5, filled with the industry's densest NVMe drives and supporting enterprise applications like Oracle. Dell is also already shipping the industry's leading portfolio of servers supporting NVMe 2.5-inch SSDs.

NVMe drives and NVMeF protocols will continue to be added to other products in the overall Dell and Dell EMC portfolio as we enhance more of our overall software and hardware platforms to support this new technology. These new storage offerings will include the full complement of enterprise data services that customers expect and rely on when they purchase a Dell EMC storage system.

An emerging possibility is the notion of having hyper-converged nodes' storage connected by an NVMe type fabric, one using RDMA, to speed inter-node linking and virtual SAN operations. An Excelero NASA Ames case study illustrates the idea.

La documentazione per questo prodotto stata redatta cercando di utilizzare un linguaggio senza pregiudizi. Ai fini di questa documentazione, per linguaggio senza di pregiudizi si intende un linguaggio che non implica discriminazioni basate su et, disabilit, genere, identit razziale, identit etnica, orientamento sessuale, status socioeconomico e intersezionalit. Le eventuali eccezioni possono dipendere dal linguaggio codificato nelle interfacce utente del software del prodotto, dal linguaggio utilizzato nella documentazione RFP o dal linguaggio utilizzato in prodotti di terze parti a cui si fa riferimento. Scopri di pi sul modo in cui Cisco utilizza il linguaggio inclusivo.

Per autorizzare un punto di accesso, l'indirizzo MAC Ethernet del punto di accesso deve essere autorizzato per il database locale con controller LAN wireless 9800 o per un server RADIUS (Remote Authentication Dial-In User Service) esterno.

Questa funzione garantisce che solo i punti di accesso autorizzati possano unirsi a un controller LAN wireless Catalyst 9800. Questo documento non copre il caso di access point mesh (serie 1500) che richiedono una voce del filtro mac per collegarsi al controller ma non tracciano il flusso tipico di autorizzazione degli access point (vedere riferimenti).

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