Safe Harbor Statement: The information on IBM products is intended to outline IBM's general product direction and it should not be relied on in making a purchasing decision. The information on the new products is for informational purposes only and may not be incorporated into any contract. The information on IBM products is not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for IBM products remains at IBM's sole discretion.
Tony Pearson is a an active participant in local, regional, and industry-specific interests, and does not receive any special payments to mention them on this blog.
Tony Pearson receives part of the revenue proceeds from sales of books he has authored listed in the side panel.
Tony Pearson is not a medical doctor, and this blog does not reference any IBM product or service that is intended for use in the diagnosis, treatment, cure, prevention or monitoring of a disease or medical condition, unless otherwise specified on individual posts.
The developerWorks Connections platform will be sunset on December 31, 2019. On January 1, 2020, this community and its apps will no longer be available. More details available on our FAQ.
IBM Systems Technical University - Day 3
This week, I am presenting at the IBM Systems Technical University in Orlando, Florida, May 22-26, 2017. Here's my recap of the sessions of Day 3.
Ethernet-only SANs -- Myth or Reality?
Anuj Chandra, IBM Advisory Engineer, presented an excellent overview of Ethernet-based SANs. He started with a quick history of Ethernet, starting with Robert Metcalfe's original drawing for his concept.
In the past, Ethernet was used for email and message transfer, and so dropped packets were tolerated. However, with the use of Ethernet for SANs, many standards have been adopted to make Ethernet networks more robust. These meet requirements for Flow Control, Congestion management, low latency, data integrity and confidentiality, network isolation, and high availability.
These standards are known as IEEE 802.1Q "Data Center Bridging", including 8012.Qbb Priority Flow Control, 802.1Qaz Enhanced Transmission Selection, 802.1Qau Congestion Notification. There is also the IETF Transparent Interconnection of Lots of Links (TRILL) to replace Spanning Tree Protocol (STP). All of these features are negotiated between endpoints server and storage. Ethernet that supports these new standards is often referred to as "Converged Ethernet" since it handles both traditional email/message traffic as well as SAN data traffic.
In addition to 1GbE and 10GbE, we now have 2.5, 5, 20, 40, 50, 100 Gb Ethernet speeds. By 2020, Anuj estimates over half of all Ethernet ports will be 25 GbE or faster. Amazingly, some of these can work on existing 10BASE-T cables.
Anuj also covered Remote Direct Memory Access (RDMA), and the RDMA-capable Network Interface Cards (RNIC) that support them. In one chart, shown here, Anuj explained Infiniband, RDMA over Converged Ethernet (RoCE) and RoCE v2, and Internet Wide Area RDMA Protocol (iWARP).
While many of these enhancements were intended for Fibre Channel over Ethernet (FCoE), the beneficiary has been iSCSI. Now there is iSCSI Extensions for RDMA (iSER) to take even more advantage of these changes, and can work with Infiniband, RoCE or iWARP. All of these networks can also be used as the basis for NVMe over Fabric (NVMeOF).
Ethernet is the backbone of Cloud usage, and IBM is well positioned to take advantage of these new networking technologies.
Digital Video Surveillance solutions for extended video evidence protection
Dave Taylor, IBM Executive Architect for Software Defined Storage solutions, presented this session on Digital Video Surveillance (DVS).
Most video surveillance is either analog-based, going to standard VHS tapes, or file-based. Sadly, security guards that watch live camera feeds lose their attention span after 22 minutes.
There are an estimated 72 million cameras globally, with 1.5 million more every year.
City governments spend 57 percent of their budget on "public safety". This can include body cams for police departments. Taser International, now called AXON, dominates the body-cam market.
City budgets may not be prepared to store all of this video content into a cloud that complies with Criminal Justice Information Services (CJIS) standards. These Cloud services tend to be more expensive, as the videos must be treated as evidence, tamper-proof, and with appropriate chain of custody.
DVS is not just storing movies. IBM offers Intelligent Video Analytics. It is important to be able to derive insight and actionable response.
Storage capacity adds up quickly. Standard 1080p (1920 by 1080 pixel) camera generates 2.92 GB per hour, 70 GB per day, and over 2TB per month. If you have 1,000 cameras, that's over 2PB of data.
For xProtect servers running Windows, the Tiger Bridge Connector can be used to move the video files to either IBM Spectrum Scale or IBM Cloud Object Storage.
Deep Dive into HyperSwap for Active-Active applications and Disaster Recovery
Andrew Greenfield, IBM Global Engineer for Storage, explained the different ways HyperSwap is implemented across the IBM storage portfolio.
For IBM DS8000, HyperSwap is based on Metro Mirror synchronous replication. In the event that the primary DS8000 fails, the host server can automatically re-direct all I/O to the secondary DS8000. This is often referred to as "High Availability" (HA), and in some cases can serve as Disaster Recovery.
For IBM Spectrum Virtualize products, including SAN Volume Controller (SVC), FlashSystem V9000, Storwize V7000 and V5000 products, as well as Spectrum Virtualize sold as software, the implementation is different.
Previously, SVC offered Stretched Clusters, which put one node in one site, and a second node at another site, which allows for an Active/Active configuration. Unfortunately, the nodes in FlashSystem V9000 and Storwize are "connected at the hip", effectively bolted together, so putting separate nodes in different locations was not possible. To solve this, IBM developed HyperSwap that allows one node-pair to replicate across sites to another node-pair in the same Spectrum Virtualize cluster.
However, even though it is called "HyperSwap", it is not implemented in any way similar to the DS8000 method. Instead, Spectrum Virtualize uses the Global Mirror with Change Volumes to replicate data between sites.
IBM Storage and VMware Integration
This session was co-presented by Brian Sherman, IBM Distinguished Engineer, and Steve Solewin, IBM Corporate Solutions Architect.
For nearly two decades, IBM is a "Technology Alliance Partner" with VMware. To provide consistent integration to all the features and functions of VMware, IBM Spectrum Control Base Edition (SCBE) is provided at no additional charge for IBM DS8000, XIV, FlashSystem and Spectrum Virtualize products.
SCBE is downloadable as an RPM for RedHat Enterprise Linux (RHEL) can run bare-metal or as a VM.
For those using Hyper-Scale Manager, it will automatically install a special A-line-only version of SCBE. It will install SCBE, but it will only manage the A-line products (FlashSystem A9000, FlashSystem A9000R, XIV and Spectrum Accelerate).
Storage admins can define "storage services" that can be assigned to vCenter. This allows VMware admins to allocate storage in self-service mode.
After the meetings were over, IBM had a special event at the Universal City Walk to enjoy some drinks, food, and conversation, and to watch Blue Man Group.