Tony Pearson is a Master Inventor and Senior IT Architect for the IBM Storage product line at the
IBM Executive Briefing Center in Tucson Arizona, and featured contributor
to IBM's developerWorks. In 2016, Tony celebrates his 30th year anniversary with IBM Storage. He is
author of the Inside System Storage series of books. This blog is for the open exchange of ideas relating to storage and storage networking hardware, software and services.
(Short URL for this blog: ibm.co/Pearson )
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With all the announcements we had in June, it is easy for some of the more subtle enhancements to get overlooked. While I was at Orlando for the IBM Edge conference, I was able to blog about some of the key featured announcements. Then, later, when I got back from Orlando to Tucson, I was able to then blog about [More IBM Storage Announcements]. For IBM's Scale-Out Network Attach Storage (SONAS), I had simply:
"SONAS v1.3.2 adds support for management by the newly announced IBM Tivoli Storage Productivity Center v5.1 release. Also, IBM now officially supports Gateway configurations that have the storage nodes connected to XIV or Storwize V7000 disk systems. These gateway configurations offer new flexible choices and options for our ever-expanding set of clients."
In my defense, IBM numbers its software releasees with version.release.modification, so 1.3.2 is Version 1, Release 3, Modification 2. Generally, modification announcements don't get much attention. The big announcement for v1.3.0 of SONAS happened last October, see my blog post [October 2011 Announcements - Part I] or
the nice summary post [IBM Scale-out Network Attached Storage 1.3.0] from fellow blogger Roger Luethy.
Here is a diagram showing the three configurations of SONAS.
I have covered the SONAS Appliance model in depth in previous blogs, with options for fast and slow disk speeds, choice of RAID protection levels, a collection of enterprise-class software features provided at no additional charge, and interfaces to support a variety of third party backup and anti-virus checking software.
The basics haven't changed. The SONAS appliance consists of 2 to 32 interface nodes, 2 to 60 storage nodes, and up to 7,200 disk drives. The maximum configuration takes up 17 frames and holds 21.6PB of raw disk capacity, which is about 17PB usable space when RAID6 is configured. An interface nodes has one or two hex-core processors with up to 144GB of RAM to offer up to 3.5GB/sec performance each. This makes IBM SONAS the fastest performing and most scalable disk system in IBM's System Storage product line.
I thought I would go a bit deeper on the gateway models. These models support up to ten storage nodes, organized in pairs. The key difference is that instead of internal disk controllers, the storage nodes connect to external disk systems. There is enough space in the base SONAS rack to hold up to six interface nodes, or you can add a second rack if you need more interface nodes for increased performance.
SONAS with XIV gateway
XIV offers a clever approach to storage that allows for incredibly fast access to data on relatively slow 7200 RPM drives. By scattering data across all drives and taking advantage of parallel processing, rebuild times for a failed 3TB drive are less than 75 minutes. Compare that to typical rebuild times for 3TB drives that could take as much as 9-10 hours under active I/O loads!
In the configuration, each pair of storage nodes can connect to external SAN Fabric switches that then connect to one or two XIV storage systems. How simple is that? These can be the original XIV systems that support 1TB and 2TB drives, or the new XIV Gen3 systems that support 400GB Solid-state drives (SSD) and 3TB spinning disk drives. In both cases, you can acquire additional storage capacity as little as 12 drives at a time (one XIV module holds 12 drives).
The maximum configuration of ten XIV boxes could hold 1,800 drives. At 3TB drive per drive, that would be 2.4PB usable capacity.
The SONAS with XIV gateway does not require the XIV devices to be dedicated for SONAS purposes. Rather, you can assign some XIV storage space for the SONAS, and the rest is available for other servers. In this manner, SONAS just looks like another set of Linux-based servers to the XIV storage system. This in effect gives you "Unified Storage", with a full complement of NAS protocols from the SONAS side (NFS, CIFS, FTP, HTTPS, SCP) as well as block-based protocols directly from the XIV (FCP, iSCSI).
SONAS with Storwize V7000 gateway
The other gateway offering is the SONAS with Storwize V7000. Like the SONAS with XIV gateway model, you connect a pair of SONAS storage nodes to 1 or 2 Storwize V7000 disk systems. However, you do not need a SAN Fabric switch in between. You can instead connect the SONAS storage nodes directly to the Storwize V7000 control enclosures.
To acquire additional storage capacity, you can purchase a single drive at a time. That's right. Not 12 drives, or 60 drives, at a time, but one at a time. The Storwize V7000 supports a wide range of SSD, SAS and NL-SAS drives at different sizes, speeds and capacities. The drives can be configured into various RAID protection levels: RAID 0, 1, 3, 5, 6 and 10.
Each Storwize V7000 control enclosure can have up to nine expansion drawers. If you choose the 2.5-inch 24-bay models, you can have up to 480 drives per storage node pair, for a total of 2,400 drives. If you choose the 3.5-inch 12-bay models, you can have up to 240 drives per node pair, 1,200 drives total. At 3TB per drive, this could be 3.6PB of raw capacity. The usable PB would depend on which RAID level you selected. Of course, you don't have to limit yourself all to one size or the other. Feel free to mix 2.5-inch and 3.5-inch drawers to provide different storage pool capabilities.
All three SONAS configurations support Active Cloud Engine. This is a collection of features that differentiate SONAS from the other scale-out NAS wannabees in the marketplace:
Policy-driven Data Placement -- Different files can be directed to different storage pools. You no longer have to associate certain file systems to certain storage technologies.
High-speed Scan Engine -- SONAS can scan 10 million files per minute, per node. These scans can be used to drive data migration, backups, expirations, or replications, for example. It is over 100 times faster than traditional walk-the-directory-tree approaches employed by other NAS solutions.
Policy-driven Migration -- You can migrate files from one storage pool to another, based on age, days since last reference, size, and other criteria. The files can be moved from disk to disk, or move out of SONAS and stored on external media, such as tape or a virtual tape library. A lot of data stored on NAS systems is dormant, with little or no likelihood of being looked at again. Why waste money keeping that kind of data on expensive disk? With SONAS, you can move those files to tape can save lots of money. The files are stubbed in the SONAS file system, so that an access request to a file will automatically trigger a recall to fetch the data from tape back to the SONAS system.
Policy-driven Expiration -- SONAS can help you keep your system clean, by helping you decide what files should be deleted. This is especially useful for things like logs and traces that tend to just hang around until some deletes them manually.
WAN Caching -- This allows one SONAS to act as a "Cloud Storage Gateway" for another SONAS at a remote location connected by Wide Area Network (WAN). Let's say your main data center has a large SONAS repository of files, and a small branch office has a smaller SONAS. This allows all locations to have a "Global" view of the all the interconnected SONAS systems, with a high-speed user experience for local LAN-based access to the most recent and frequently used files.
If you want to learn more, see the [IBM SONAS landing page]. Next week, I will be across the Pacific Ocean in [Taipei], to teach IBM Top Gun class to sales reps and IBM Business Partners. "Selling SONAS" will be one of the topics I will be covering!
Every year, I teach hundreds of sellers how to sell IBM storage products. I have been doing this since the late 1990s, and it is one task that has carried forward from one job to another as I transitioned through various roles from development, to marketing, to consulting.
This week, I am in the city of Taipei [Taipei] to teach Top Gun sales class, part of IBM's [Sales Training] curriculum. This is only my second time here on the island of Taiwan.
As you can see from this photo, Taipei is a large city with just row after row of buildings. The metropolitan area has about seven million people, and I saw lots of construction for more on my ride in from the airport.
The student body consists of IBM Business Partners and field sales reps eager to learn how to become better sellers. Typically, some of the students might have just been hired on, just finished IBM Sales School, a few might have transferred from selling other product lines, while others are established storage sellers looking for a refresher on the latest solutions and technologies.
I am part of the teach team comprised of seven instructors from different countries. Here is what the week entails for me:
Monday - I will present "Selling Scale-Out NAS Solutions" that covers the IBM SONAS appliance and gateway configurations, and be part of a panel discussion on Disk with several other experts.
Tuesday - I have two topics, "Selling Disk Virtualization Solutions" and "Selling Unified Storage Solutions", which cover the IBM SAN Volume Controller (SVC), Storwize V7000 and Storwize V7000 Unified products.
Wednesday - I will explain how to position and sell IBM products against the competition.
Thursday - I will present "Selling Infrastructure Management Solutions" and "Selling Unified Recovery Management Solutions", which focus on the IBM Tivoli Storage portfolio, including Tivoli Storage Productivity Center, Tivoli Storage Manager (TSM), and Tivoli Storage FlashCopy Manager (FCM). The day ends with the dreaded "Final Exam".
Friday - The students will present their "Team Value Workshop" presentations, and the class concludes with a formal graduation ceremony for the subset of students who pass. A few outstanding students will be honored with "Top Gun" status.
These are the solution areas I present most often as a consultant at the IBM Executive Briefing Center in Tucson, so I can provide real-life stories of different client situations to help illustrate my examples.
The weather here in Taipei calls for rain every day! I was able to take this photo on Sunday morning while it was still nice and clear, but later in the afternoon, we had quite the downpour. I am glad I brought my raincoat!
Earlier this week, Jon Erickson from Forrester Reserch, and Chris Saul from IBM, co-presented a webcast on the economic impact of using SAN Volume Controller for storage virtualization. The event was co-sponsored by IBM, InformationWeek, and UBM TechWeb, The Global Leader in Business Technology Media, a Division of UBM LLC. Jon spoke first, covering the cost savings and financial benefits of using SAN Volume Controller in your environment. His analysis shows a payback period of only 18 months!
Chris Saul (IBM) then covered the latest features introduced last June for SAN Volume Controller v6.4 release. Many of these features are available on older hardware models of SAN Volume Controller. One of the most exciting features is Real-time Compression.
If you missed the webcast, you can listen to the [Replay]. There is also a [whitepaper] if you prefer that format.
The Real-time Compression benefits can vary by the type of data compressed. Some data compresses only 20% savings. Other data compresses 80% or more. The best way to find out how much Compression would benefit your environment is to run the [IBM Comprestimator Tool] that runs against your own data!
If you are constantly battling out-of-space conditions, and would like to make extra room on your existing storage devices, your dreams have come true!
Well it's Tuesday again, and you know what that means! IBM Announcements!
For nearly 50 years, IBM has been leading the IT industry with its mainframe servers. Today, IBM announced its 12th generation mainframe in its [System z product family], the IBM zEnterprise EC12, or zEC12 for short. I joined IBM in 1986, and my first job was to work on DFHSM for the MVS operating system. The product is now known as DFSMShsm as part of the Data Facility Storage Management System, and the operating systems went through several name changes: MVS/ESA, OS/390, and lately z/OS. I was the lead architect for DFSMS up until 2001. I then switched to be part of the team that brought Linux to the mainframe. Both of these experiences come in handy as I deal with mainframe storage clients at the Tucson Executive Briefing Center.
Let's take a look at some recent developments over the past few years.
In the 9th and 10th generations (IBM System z9 and z10, respectively), IBM introduced the concept of a large "Enterprise Class", and a small "Business Class" to offer customer choice. These were referred to as the EC and BC models.
For the 12th generation, IBM kept the name "zEnterprise", but went back to the "EC" to refer to Enterprise Class. Rather than offer a separate "small" Business Class version, the zEC12 comes in 60 different sub-capacity levels. Many software vendors charge per core, or per [MIPS], so offering sub-capacity means that some portion of the processors are turned off, so the software license is lower. The top rating for the zEC12 is 78,000 MIPS. (I would have thought by now that we would have switched over to BIPS by now!)
If you currently have a z10 or z196, then it can be upgraded to zEC12. The zEC12 can attach to up to four zBX model 003 frames that can run AIX, Microsoft Windows and Linux-x86. If you currently have zBX model 002 frames, these can be upgraded to model 003.
The key enhancements reflect the three key initiatives:
Operational Analytics - Most analytics are done after-the-fact, but IBM zEnterprise can enable operational analytics in real-time, such as fraud detection while the person is using the credit card at a retail outlet, or online websites providing real-time suggestions for related products while the person is still adding items to their shopping card. Operational analytics provides not just the insight, but in a timely manner that makes it actionable. There is even work in place to [certify Hadoop on the mainframe].
Security and Resiliency - IBM is famous for having the most secure solutions. With industry-leading EAL5+ security rating, it beats out competitive offerings that are typically only EAL4 or lower. IBM has a Crypto Express4S card to provide tamper-proof co-processing for the system. IBM introduces the new "zAware" feature, which is like "Operational Analytics" pointed inward, evaluating all of the internal processes, error logs and traces, to determine if something needs to be fixed or optimized.
Cloud Agile - When people hear the phrase "Cloud Agile" they immeidately think of IBM System Storage, but servers can be Cloud Agile also, and the mainframe can run Linux and Java better, faster, and at a lower cost, than many competitve alternatives.
IBM has announced it has entered into a definitive agreement to acquire Texas Memory Systems, Inc. (TMS), a privately held Houston, Texas-based company with about 100 employees, that focuses on solid-state flash optimized systems and solutions, including the RamSan family of external rack-mounted storage, as well as PCIe cards for internal storage that fit inside servers.
I've mentioned Solid-State Drive storage quite a few times over the past few years in this blog, which included some great interactions with my friends over at Texas Memory Systems. Here's a quick look:
In my now infamous blog post [Hybrid, Solid State and the future of RAID], I resort to a deck of [Tarot cards] in an effort to fight [writer's block] responding to query about combining solid-state with spinning disk. In the original post, I poked fun at Texas Memory Systems having the slogan "World's Fastest Storage". Woody Hutsell, then VP of marketing for Texas Memory Systems, explained that the reason that TMS did not have faster benchmark results was because it did not have a million dollars to buy the fastest IBM UNIX server.
In my post [Good News and Bad News], I mentioned that Texas Memory Systems has an impressive SPC benchmark result. The Storage Performance Council [SPC] publishes the benchmarking industry standard by which all block-based storage devices are measured. It looks like the TMS performance test department finally got the million-dollar IBM server they needed for this.
My colleagues in marketing were not amused, afraid that mentioning small companies like TMS would give them a huge boost in marketing awareness, above and beyond what TMS could do on their own modest marketing budget, similar to the [Colbert Bump]. I could call it the Pearson Bump. If you first heard of Texas Memory Systems from my blog, or bought TMS products based on my discussion, please post a comment below!
IBM made history as the first major storage vendor to [break the 1 million IOPS barrier with Solid State Disk]. The project was known as "Quicksilver", and was able to demonstrate that a product like SAN Volume Controller with Solid-State Drives (SSD) can indeed provide a significant boost in performance to external disk arrays. The IBM 2145-CF8 and 2145-CG8 models allow up to four SSD in each node. I was asked not to blog the entire month of August, so that our upcoming September announcements would get more notice, but I couldn't resist covering Quicksilver. The original post had mentioned Texas Memory Systems, but were later removed to avoid the "Pearson Bump".
In my post [Day 2 IBM Storage University - Solutions Expo - TMS After-party], I mentioned that I attended the TMS after-party. Texas Memory Systems had just been qualified as Solid-State Drive (SSD) storage behind the IBM SAN Volume Controller, and the two products work extremely well together for IBM Easy Tier, the sub-volume automated tiering capability to optimize storage performance. I was able to catch up with my friend Erik Eyberg, and meet CEO and Founder Holly Frost.
Nearly half (43 percent) of IT decision makers say they have plans to use SSD technology in the future or are already using it in their datacenter. Solid-state can refer to both volatile Random Access Memory (RAM) and non-volatile Flash, and Texas Memory Systems has built solutions around both types. The survey question referred to non-volatile Flash Solid-State Drives (SSD) that do not require a battery to keep the data from fading away after the power goes out. Nearly all storage in the datacenter has volatile Random Access Memory (RAM).
Speeding delivery of data was the motivation behind 75 percent of respondents who plan to use or already use SSD technology. I would have thought this would have been 100 percent, but the other options included reduced energy consumption, and improved drive reliability, which are both also true with Solid-State Drives.
However, for those who were not using SSD today, the major factor was cost, according to 71 percent of respondents. On a Dollar-per-GB basis, Solid-State Drives continue to be anywhere from 10 to 25 times more expensive spinning disk. Last year's tsunami in Japan, and the floods in Thailand, have caused spinning disk prices to rise to cover component shortages, thereby shrinking the price gap between SSD and spinning disk.
Nearly half (48 percent) say they plan on increasing storage investments in the area of virtualization, cloud (26 percent) and flash memory/solid state (24 percent) and analytics (22 percent).