A group blog about IBM storage, storage news, hints and technical discussions by EMEA storage experts. The postings on this site are our own and don't necessarily represent IBM's positions, strategies or opinions.
Recent news about the new IBM System z13 were the initiator to look back over the last years and summarize IBM synergies between IBM Storage and System z mainframe computers.
IBM System Storage synergy with System z has long tradition at IBM, resulting in many benefits like improved application efficiency, performance and highest possible system availability, due to resiliency functions like remote copy, which are managed by System z software and services packages for effective DR setups.
Already in the 1980s IBM... [More]
Just recently, Storage magazine/SearchStorage.com published the results of their ninth annual Tape Libraries Quality Awards. The results were derived out of 473 evaluations from 321 users, covering five main quality categories. So I believe there’s sufficient market insight and user experience behind the results.
In the “Enterprise Tape Libraries” category, IBM’s TS3500/TS4500 was compared against Hewlett-Packard’s ESL/EML Series and Oracle’s StorageTek SL3000/SL8500, among other competitors.
By Nils Haustein, Andre Gaschler, Sven Oehme and Joerg Walter
We would like to share the first preliminary results (see figure 1) of our Proof of Concept (PoC) running Tivoli Storage Manager (TSM) workloads on Elastic Storage with GPFS Native RAID (GNR) over 40 Gbit Ethernet connections. Thanks to Sven Oehme from IBM Research who provided us with the infrastructure and expertise configuring the GNR and TSM server systems.
The peak throughput results are amazing as you can see below:
I would like to share some experiences configuring Information Lifecycle Management (ILM) with Elastic Storage GPFS 4.1, in particular regarding automatic migration with more than two storage pools and tape being one of them. The ILM function in GPFS allows to seamlessly and transparently migrate data from one file system storage pool to another. A file system storage pool is a collection of storage devices with the same characteristic.
GPFS ILM Function and Policies
For example a file system might have two... [More]
The emerging field of "brain inspired computing" has the potential to revolutionize the computer industry. So why is it so promising to design new computers inspired by the human brain?
Current computer processors are based on the “Von Neumann”-architecture that originates from 1945. This design is extremely powerful for analytic tasks like calculations, regression analysis etc. State of the art computers can execute tasks with ultra-high speed of up to 5 Ghz or an equivalent of 0.2 nano-seconds per operation. In... [More]
When we look at IBM’s strategy for Software Defined Storage (SDS), then the clear focus lies on Elastic Storage .
Elastic Storage is a proven, scalable, high-performance data and file management solution, based upon IBM General Parallel File System (GPFS) technology. It provides simplified data management and integrated information lifecycle tools capable of managing petabytes of data and billions of files.
Today I want to focus on the fact that Elastic Storage supports Flash, Disk and Tape under a single name space. This is a... [More]
There are two major categories of problems usually reported to the technical support:
Ongoing problems, including problems that happen again and again and problems that can be recreated.
One-time occurrences where a so called root cause analysis (RCA) is necessary.
Technically problems from these both categories could be very similar, but the fact if the support person needs to investigate something in the past or something that will certainly happen again in the future totally changes the necessary approach.... [More]
Just recently, Gartner published a report, titled “Magic Quadrant for Deduplication Backup Target Appliances”. This is a completely new analysis, so I’d call it a “Gartner’s first look” on this market.
Strangely enough, the large majority of products were ranked as “niche players”. While this might be an obvious choice for many of the products, I was quite astonished to see IBM’s ProtecTIER solution also ranked as “niche player”.
In the report, Gartner mainly describes... [More]
By Andre Gaschler and Nils Haustein
Elastic storage lives from its use cases. One use case has been around for years: Running TSM servers on GPFS storage.
We would like to elaborate on this use case and demonstrate some outstanding performance test results.
For those who don’t know those product, IBM® Tivoli® Storage Manager products provide backup, archive, recovery, space management, database and application protection, and bare machine recovery and disaster recovery capabilities. They can help protect a wide... [More]
Moving to software defined cloud environment, there is no way to get around OpenStack. OpenStack is an open source infrastructure as a service (IaaS) solution that basically is able to control and manage entire IT infrastructures.
It is a component based solution that includes the following major components:
Storage: BlockStorage: Cinder
Storage: Object Storage: Swift
From the very beginning OpenStack is designed to be massively scalable from small to ultra large... [More]
I was recently involved in some customer engagements and briefings related to secure data access and NFSv4. There seems to be some general misconception that NFSv4 deployments provide much more secure data access than NFSv3 deployments. Here are a few facts which I feel worth to clarify and share:
1. The weakness of machine based authentication
The traditional Unix security model is also referred as machine based or server based authentication. The root user authorizes a user to login on a server by creating a user account which... [More]
The new LTFS Enterprise Edition (LTFS EE) release 22.214.171.124 is now available. There are many new functions in this release . I want to show you the most exciting ones, some of them I tested in our Lab.
Tape Libraries TS4500 and TS3310 are supported: In addition to the TS3500 two new IBM tape libraries are supported. The TS3310 allows creating small LTFS EE solutions, perhaps leveraging the LTFS EE entry configuration bundle . With the TS4500 enterprise solutions with LTFS EE can be established.
True flash architecture – that means being designed for the purpose of ultra-high performance from scratch, and not being limited by a Device Adapter, or FC-AL shortcomings. If you look at the specs of typical SSDs of today, each single drive could do tens of thousands of IOps, but when it comes to creating a RAID across a small pack of these, then we see the real results. Traditional architectures often also call themselves “flash”, but in fact were just using SSDs and kept putting them behind the same Device Adapters that... [More]
I have recently supported an implementation of System Storage Archive Manager (SSAM) with storage pools on N series Snaplock volumes. I would like to share some experiences especially when event based retention is used with SSAM.
The drawing below shows the system architecture. The SSAM software runs on AIX in this example. The AIX server is connected via 10 GBit Ethernet to the N series which is configured to provide NFS shares based on snaplock volumes. The SSAM DB is stored on internal mirrored disk of the AIX server. The storage pools... [More]
Will you be attending the 2014 IBM Systems Technical University (STU) in Istanbul next week?
If you’re not registered yet, you better hurry up now!
The STU is the perfect venue to ramp up quickly on smarter computing implementation, gain an in-depth look at the latest innovations from IBM Systems, learn about recent product announcements, exchange insights with colleagues and learn from the ESCC experts!
To be honest, we are certainly quite proud that a significant portion of the... [More]