This blog is for the open exchange of ideas relating to IBM Systems, storage and storage networking hardware, software and services.
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Tony Pearson is a Master Inventor, Senior IT Architect and Event Content Manager for [IBM Systems for IBM Systems Technical University] events. With over 30 years with IBM Systems, Tony is frequent traveler, speaking to clients at events throughout the world.
Lloyd Dean is an IBM Senior Certified Executive IT Architect in Infrastructure Architecture. Lloyd has held numerous senior technical roles at IBM during his 19 plus years at IBM. Lloyd most recently has been leading efforts across the Communication/CSI Market as a senior Storage Solution Architect/CTS covering the Kansas City territory. In prior years Lloyd supported the industry accounts as a Storage Solution architect and prior to that as a Storage Software Solutions specialist during his time in the ATS organization.
Lloyd currently supports North America storage sales teams in his Storage Software Solution Architecture SME role in the Washington Systems Center team. His current focus is with IBM Cloud Private and he will be delivering and supporting sessions at Think2019, and Storage Technical University on the Value of IBM storage in this high value IBM solution a part of the IBM Cloud strategy. Lloyd maintains a Subject Matter Expert status across the IBM Spectrum Storage Software solutions. You can follow Lloyd on Twitter @ldean0558 and LinkedIn Lloyd Dean.
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Well, it's Tuesday again, and you know what that means! IBM announcements!
Today, I am in New York visiting clients. The weather is a lot nicer than I expected. Here is a picture of the Hudson River through some trees with leaves turning color. Something we don't see in Tucson! Our cactus and pine trees stay green year-round!
The announcements today center around the IBM PureSystems family of expert integrated systems. The PureFlex is based on Flex System components. The Flex System chassis is 10U high that hold 14 bays, consisting of 7 rows by 2 columns. Computer and Storage nodes fit in the front, and switches, fans and power supplies in the back. Here is a quick recap:
IBM Flex System Compute Nodes
The x220 Compute Node is a single-bay low-power 2-socket x86 server. The x440 Compute Node is a powerful double-bay (1 row, 2 columns). The p260 Compute Node is a single-bay server based on the latest POWER7+ CPU processor.
IBM Flex System Expansion Nodes
Do you remember those old movies where a motorcycle would have a sidecar that could hold another passenger, or extra cargo? IBM introduces "Expansion Nodes" for the x200 series single-bay Compute nodes. The idea here is that in a single column, you have one bay for the Compute node, and then on the side in the next bay (same column) you have an Expanions node. There are two choices:
Storage Expansion Node allows you to have eight additional drives
PCIe Expansion Node allows to to have four PCIe cards, which could include the SSD-based PCIe cards from IBM's recent acquisition, Texas Memory Systems.
There are times where one or two internal drives are just not enough storage for a single server, and these expanion nodes could just be the perfect solution for some use cases.
IBM Flex System V7000 Storage Node
I saved the best for last! The Flex System V7000 Storage Node is basically the IBM Storwize V7000 repackaged to fit into the Flex System chassis. This means that in the front of the chassis, the Flex System V7000 takes up four bays (2 rows by 2 columns). In the back of the chassis are the power supplies, fans and switches.
The new Flex System V7000 supports everything the Storwize V7000 does except the upgrade to "Unified" through file modules. For those who want to have Storwize V7000 Unified in their PureFlex systems, IBM will continue to offer the outside-the-chassis original Storwize V7000 that can have two file modules added for NFS, CIFS, HTTPS, FTP and SCP protocol support.
IBM Flex System Converged Network Switch
The Converged Network Switch provide Fibre Channel over Ethernet (FCoE) directly from the chassis. This eliminates the need for a separate "Top-of-Rack" switch, and allows the new Flex System V7000 Storage Node to externally virtualize FCoE-based disk arrays.
Patterns of Expertise for Infrastructure
The original patterns of expertise focused on the PureApplication Systems. Now IBM has added some for the Infrastructure on PureFlex systems.
IBM has sold over 1,000 Flex System and PureFlex systems, across 40 different countries around the world, since their introduction a few months ago in April! These latest enhancements will help solidify IBM's industry leadership,
Well, it's Tuesday again, and you know what that means! IBM Announcements!
Today also happens to be [Election Day] in the United States, and some have questioned IBM's logic of making major storage announcements on Election Day. During the campaigns, a major theme was to help Small and Medium size businesses, because these are the engines of economic growth and improved employment.
Hopefully, you all saw today's Launch Webcast on these announcements, but in case you missed it, waiting in line at the polling station to cast your vote, or caught without electricity or Internet access from [Superstorm Sandy], it is now available [On-Demand].
The 2U control enclosure can have up to four additional 2U expansion enclosures, for a maximum of 120 drives, or 180TB of raw disk capacity. Like the Storwize V7000, the Storwize V3700 supports a [large number of servers and operating systems.]
Many of the features you already know from the Storwize V7000 are carried forward:
1GbE iSCSI + 8GbFC
8GbFC, 10GbE iSCSI/FCoE, Statement of Direction for 6Gb SAS
8GB per canister
4GB per canister, upgradeable to 8GB
Up to 4 control enclosures in a clustered system, each with up to 9 expansion enclosures
Up to 4 expansion enclosures
Maximum Number of drives/TB
Up to 120 drives/180TB
RAID levels supported
GUI, CLI, SMI-S API
GUI, CLI, SMI-S API
Internal (included), external (optional)
Internal only (included)
Non-disruptive data migration
One-directional (migrate to Storwize V3700, included)
Statement of direction
Up to 256 targets (included)
Up to 64 targets (included) Statement of Direction for optional 2,040 targets
Metro Mirror and Global Mirror (optional)
Statement of Direction (optional)
The IBM Storwize V3700 is offered at attractive leasing options through IBM Global Financing.
IBM LTO-6 drives and midrange tape libraries
Last month, IBM's [Tape and Storage Hypervisor Announcements] included LTO-6 for the enterprise-class TS3500 tape library. Today, the LTO-6 support is complete with support for midrange tape drives and libraries.
There are two tape drive models. The TS2260 is based on the half-height drive, intended for occasional 9-to-5 usage. The TS2360 is based on the full-height drive, intended for 24x7 access. These drives can read LTO-4 and LTO-5 tape cartridge media, and can write LTO-5 cartridge media. The new LTO-6 tape cartridge media is expected to be available next month.
In addition to the IBM TS3500 Enterprise Tape Library, LTO-6 is now supported on all of the midrange tape libraries: TS2900, TS3100, TS3200 and TS3310.
IBM Linear Tape File System Library Edition V2.1.2
There are two levels of [Linear Tape File System], or LTFS for short. The first is the Single Drive Edition (LTFS-SDE), which allows you to attach an LTO-5, LTO-6 or TS1140 tape drive to a single workstation, and allow you to mount tape cartridges as easy as mounting USB memory sticks. This presents a full file system view that allows you to read, edit, create, and even drag-and-drop files to other file systems. The LTFS-SDE driver is available for Windows, Linux, and Mac OS.
The second is the Library Edition (LTFS-LE), which allows you to mount the entire tape library as a file system. Each tape cartridge in the library is presented as a subdirectory folder, that you can access like any file system on disk. This was only available for Linux systems, which could then export the files through NFS, FTP or HTTP protocols to other clients. Now, with release v2.1.2, LTFS-LE supports Windows servers, so that you can share the files with other clients through CIFS as well.
A lot was announced yesterday, so I decided to break it up into several separate posts. This is part 2 in my 3-part series, focusing on: Storwize V7000 Unified, LTO-6 tape, and the SmartCloud Virtual Storage Center.
The Storwize V7000 Unified is a product that consists of a 2U-high Storwize V7000 control enclosure that provides block-based access, combined with two 2U-high File Modules that provide file-based NAS protocols: CIFS, NFS, HTTPS, SCP and FTP. The problem was that when it was introduced, it was based on Storwize V7000 v6.3, so when the Storwize V7000 v6.4 features were announced last June, they did not apply to the Storwize V7000 Unified.
That is all fixed now, so the Storwize V7000 Unified now supports the full v6.4 features, including Real-time Compression for both file and block-based access to primary data, and Fibre Channel over Ethernet (FCoE) for block access.
The two File Modules are no longer limited to a single Storwize V7000 control enclosure, you can now connect to up to four control enclosures clustered together. Combined with up to nine expansion enclosures for additional disk raises the total maximum to 960 drives.
If you don't already have an Active Directory or LDAP server, the Storwize V7000 Unified now offers an embedded LDAP server, for smaller deployments that want to reduce the number of servers they need to purchase for a complete solution.
Like the [IBM XIV Gen3 storage system], both the Storwize V7000 and V7000 Unified now also support the OpenStack Nova-volume interface.
Lastly, if you have a Storwize V7000 v6.4, you can upgrade it to a Storwize V7000 Unified by simply adding the two File Modules. This can be done in the field.
IBM LTO-6 for tape libraries and drives
IBM introduces the sixth generation of Linear Tape Open (LTO-6) drives, which can be used as stand-alone IBM TS1060 drives, or in IBM tape libraries. As with previous models of LTO, the LTO-6 can read two older generations (LTO-4 and LTO-5) tape media, and can write to previous generation (LTO-5) tape media. You can buy the LTO-6 drives now, and use the older media until LTO-6 tape cartridges are available (hopefully later this year!)
My friend, Brad Johns, from Brad Johns Consulting, has a great post on this [LTO-6 Announcement]. While you expect the new drives to be faster with a denser tape media format, the key advantage to the LTO-6 is that it improves the compression algorithm, from the previous 2:1 to the new 2.5:1 compression ratio:
Thus, with the improved compression, the LTO-6 is 40 percent faster, with double the tape cartridge density. This can reduce backup times by 30 percent, increase the amount of data that sits in your automated tape libraries, and reduce the courier costs sending tapes off-site.
IBM SmartCloud Virtual Storage Center v5.1
Last year, IBM coined the phrase "Storage Hypervisor" to refer to the underlying technology in the IBM SAN Volume Controller (SVC) and Storwize V7000 disk systems.
At the IBM Edge conference last June, my colleague Mike Griese presented [SmartCloud Virtual Storage Center]. Back then, it was a pilot program (beta test), and this week, IBM announces that it will be formally available as a product.
The idea was simple: take the basic storage hypervisor, and add the necessary software to make it a complete solution.
If all of your disk is currently virtualized behind IBM SAN Volume Controller (SVC), or you want to put all of your data behind SVC, then SmartCloud Virtual Storage Center is for you. Basically, for one per-TB price, you get all of the following:
The software features of SAN Volume Controller v6.4, including FlashCopy, Metro Mirror and Global Mirror.
The full advanced features of IBM Tivoli Storage Productivity Center v5.1, including the Storage Analytics Engine that does "Right-Tiering", recommending which LUNs should be moved entirely from one disk system to another, based on policies and access patterns.
IBM Tivoli Storage FlashCopy Manager v3.2 which manages FlashCopy with full coordination with applications, including Microsoft Exchange, SQL Server, DB2, Oracle, SAP, and VMware. This ensures that the FlashCopy destination copies are clean, eliminating the need to run backout or redo logs to correct any incomplete units of work.
If this combination sounds familiar, it was based on IBM's previous attempt called [Rapid Application Storage] which combined the Storwize V7000 with Tivoli Storage Productivity Center Midrange Edition and FlashCopy Manager.
The key difference is that SmartCloud VSC does not include the SVC hardware itself, you buy this separately. If you want Real-time Compression, that is charged separately for the subset of TB of the volumes that you select for compression.
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!
This week I am in Orlando, Florida for the IBM Edge conference. This is the last day, so it ends early for people who want to get home to their datacenters (er.. families) for the weekend.
How Real-Time Compression Can Maximize Storage Efficiency for Production Applications
This was a split session with two speakers. First, Ian Rimmer, Senior IT Engineer and Architect at iBurst, presented their experience with the IBM Real-Time Compression Appliance in front of NetApp NAS storage arrays. Second, Jerry Haigh, IBM offering manager for IBM System Storage, presented the new Real-Time compression feature announced this week on IBM SAN Volume Controller (SVC) and Storwize V7000.
iBurst is the #1 Wireless Telecom for South Africa. The also offer cable broadband and VOIP. They have 200 employees servicing 120,000 subscriber/households. They need to keep five years' worth of text files, and have chosen real-time compression of their NAS storage. This was before IBM acquired the Storwize company, as they have been using it for the past six years.
The monetary savings from compression was used to purchase Performance Accelerator Modules (PAM) cards for their NetApp NAS gear, which benefit from the compression (more data stored in SSD to improve performance).
For backup, they use NDMP with Symantec NetBackup that keeps data in its compressed form as it is written to tape. They have an IBM TS3100 library with LTO tape as the backup repository.
Jerry Haigh presented Real-Time compression for primary disk data. Unlike the competition, this is designed to be used with primary data, including databases, and does this real-time, not post-process. In some performance tests, DB2 compressed on 48 drives out-performed the same data uncompressed on 96 drives. In another test focused on VMware Vmark benchmark, the compressed data was able to be same or better performance as uncompressed. In a third test with SVC virtualizing XIV running Oracle ORION test, the Oracle databases compressed 50 to 64 percent, and had better performance.
For those who already have SVC or Storwize V7000, consider a 45-day trial to check out compression for yourself.
NAS File Systems: Access and Authentication
Mark Taylor, IBM Technical Specialist for SONAS, N series and Storwize V7000 Unified, presented the nuances of authentication and authorization for NAS file systems. The differences between these two are:
Authentication - Yes, you are who you are.
Authorization - Yes, you are permitted to do what you are trying to do
(Prior to working with SONAS, my only experience with access and authentication in NAS was setting up my LAN at home, which I have connecting my Mac, Linux and Windows machines. I have both N series and SONAS at the IBM Executive Briefing Center in Tucson, Arizona, so I know first-hand how complicated NAS access and authentication systems can be.
A few months ago, I taught "Intro to NAS" as one of my topics at the Top Gun class in Argentina and Brazil. Several of the students had mentioned they thought they knew NAS solutions but had not realized all the technical issues with access and authentication that I discussed in my presentation.)
Mark explained the differences between Windows NTFS-style System identifiers (SID), versus UNIX-style user and group identifiers (UID, GID). For NAS solutions that support both CIFS and NFS, there are four options:
Microsoft Active Director (AD) extended with Identity Management for UNIX, formerly known as Services for UNIX (SFU). AD servers normally store SID information, but the extensions add extra columns to hold UID/GID mappings.
AD with Network Information Service (NIS) server. The problem with this approach is that AD and NIS are separate databases, and you need to coordinate updates to them, and their backups.
Lightweight Directory Access Protocol (LDAP) with SAMBA extensions. LDAP holds UID/GID information, and the SAMBA extensions adds extra columns to hold SID mapping.
Local mapping. The dangerous part of local mapping is that the storage admin is also the security admin, and you may want different people doing these roles.
Of these four methods, Mark recommends the first and third as best practices for multi-protocol authentication.
SID-to-UID mapping, UID-to-SID mapping
SONAS and Storwize V7000
SID-to-UID/GID mapping, NFS v4 ACLs
NFS v4 ACLs
Mark then explained how NFS v4 ACLs work, basically an ordered collection of "Access Control Elements" or ACEs. Each ACE on the ACL may "allow" or "deny" the request. You want to avoid "Inheritance" as that can cause problems and unxpected results.
That's it folks. Next week, I am spending time with my research buddies at the Almaden Research Center near San Jose, California, and then it is off to Moscow, Russia to kick off a series of IBM events called "Edge Comes to You" (ECTY).
The ECTY conferences will be a smaller subset of the Edge conference here in Orlando, but offered in other countries for those who were unable to travel to the United States.