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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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.
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.