Barry Whyte is a 'Master Inventor' working in the Systems & Technology Group based in IBM Hursley, UK. Barry primarly works on the IBM SAN Volume Controller and Storwize family of virtual disk systems. Barry graduated from The University of Glasgow in 1996 with a B.Sc (Hons) in Computing Science. In his 18 years at IBM he has also worked on the successful Serial Storage Architecture (SSA) and the IBM DS8000 range. Barry joined the SVC development team soon after its inception and has held many positions before taking on his current role as performance architect. Outside of work, Barry enjoys playing golf and all things to do with Rotary Engines. All posts on this blog are (c) Copyright International Business Machines 2014 - reproduction without prior approval is prohibited.
Configuring IBM Storwize V7000 and SVC for Optimal Performance Part 1
I've been involved in a quite a few pre-sales, proof of concept and after-sales accounts where people have setup their V7000 and then wondered about the performance they are achieving, is it optimal, can they do... [Continue Reading]
As you may have seen, today IBM announced the next product in the Storwize family, the IBM Storwize V3700.
The Stowize V3700 builds on the amazing success that the Storwize V7000 has seen in the last two years- and of course SVC has had in the market for almost 10 years now. I could use... [Continue Reading]
Configuring IBM Storwize V7000 and SVC for Optimal Performance Part 2
Thanks to everyone who responded to my Part 1 post, I'm amazed at how many people must read what I have to say! Based on the number of you that have either spoken to me in person, or emailed. I'm glad to be of some use
... [Continue Reading]
I see that EMC have finally pushed yet another technology family on its customers. Extreme I/O arrays. So now you have to decide which one of these things do I want.
OK, let me buy an all flash array, so how will that fit with my VMax and VNX estate - oh it wont -
... [Continue Reading]
As I try to get back to more regular posting, Part 3 of Configuring for Optimal Performance is getting its final polish to post hopefully next week. Meanwhile its some time since I opened this up for your questions. This is Q & A #5, so feel free to ask away. Obviously I can't discuss... [Continue Reading]
We are delighted to announce an exciting addition to the distribution channel of IBM Redbooks – now available at the Apple iBookstore is the ability to download, for free, (I probably should add some disclaimer about network charges may apply so this is it!) selected books. Not all books... [Continue Reading]
I guess a few folks will comment that I'm raising my head again at announcement time, and true, but thats part of the problem on working on new and exciting stuff, I can't talk about it until days like today where we have announced two major new engines in the SVC and Storwize family. I even... [Continue Reading]
Some of you may have spotted we release another Storwize Family member back in July, but in limited geographies. Today
IBM announced world-wide availability of the IBM Storwize V5000.
As the name suggests, this product sits firmly between the Storwize V3000 and Storwize V7000 ranges, in... [Continue Reading]
A quick update from IBM Edge2013 at the Mandalay Bay, Las Vegas, and we are very pleased to have launched, announced, published as a draft paper the results of work that we have been doing with a company called Bridgeworks, and their SANSlide product. They are here at Edge and we were able to fine... [Continue Reading]
It is hard to look anywhere these days without seeing Flash being used. I think the word that marketing like to use, unless it has fallen out of favour is "pervasive". Mind you in the hands of some people it is definitely moving from "pervasive" to "invasive" but... [Continue Reading]
Just over a week or so ago we completed the ITSO Redbook residency to create a book based on the SAN Volume Controller and the IBM FlashSystem 820. Now, normally we like to get these things out very quickly and the team, Danny Bryant, Christian Burns, Joao Marcos Leite, and Denis Senin worked very... [Continue Reading]
Its just about year to the day since IBM announced the IBM Storwize V7000, today we've announed the next major step in the evolution of the product, and the SVC code base at its heart. The IBM Storwize V7000 Unified. This integrates IBM's Common NAS software which is used in the enterprise level... [Continue Reading]
With the move to the new blog software, there is probably a bunch of you that found yourself here, not knowing what this post was going to contain - as well as my regulars that either reap the benefits of SVC every day, or know the patter , but may not know all the benefits.
I liken SVC to... [Continue Reading]
I thought it was worth spending a few minutes describing a feature that SVC has been supporting for
just over a year now. Call it what you want, "Split Cluster", "Split I/O Group", "Hyper-swap", "Pork"
(Sorry HAM). After HDS made such a wet fish splash... [Continue Reading]
I know, I promised this some months ago, and I've been enjoying my spare time too much, and not blogging enough!
So rather than keep you all waiting even more, here is a PDF of the presentation I gave at IBM Edge 2013 in Vegas.
Hopefully most of it is self-explanitory, and I WILL... [Continue Reading]
On Friday we will release SVC software version 6.4 - it used to be simple, I could just reference SVC, but of course the same software package can be installed on V7000 systems. At present V7000 Unified systems remain at 6.3 features and functions.
You've probably seen the news in the press,... [Continue Reading]
Recently we published an IBM Redbooks Solution Guide on Implementing IBM Easy Tier with IBM Real-time Compression.
IBM® Easy Tier® is a performance function that automatically and non-disruptively migrates frequently accessed data from magnetic media to solid-state drives (SSDs). In... [Continue Reading]
I find I start so many posts these days describing how busy I've been as an excuse to why my post
frequency has been lower than normal. This has to have been a new record as I spotted my last post was over a
month ago. This time however I do have a much better excuse, two weeks time off away... [Continue Reading]
“To err is human; to forgive, divine.” Alexander Pope.
Well we are mixing up poetry and Star Wars here today (or tomorrow, if it is already tomorrow where you are), and finish it off with a cryptic message.
Anyway, let's cut to the chase here: a long time ago, in an IBM... [Continue Reading]
Its been so difficult to keep all this to myself over the last few months, especially last month when we actually reached our goal. 1 Million real life IOPs at less than 1ms - no caching, just pure raw performance. You may, or may not have seen the IBM press release , covering the first part of... [Continue Reading]
Well, i guess I should first wish, any readers I still have left a Happy New Year. Not only are we now into 2012, but hey its February too, where did January go... must be some kind of temporal locality thing going on (private joke - sorry, all will become clear all too soon)
For those of you... [Continue Reading]
As most people are aware (see Barry's post) we just announced the Storwize V5000. It fits neatly between the Storwize V3700 and the V7000.
And of course no product is complete without an accompanying IBM Redbook.
So, here goes:
One new one:
... [Continue Reading]
Greetings this week from the Storage Buddhist as I do a guest spot on this blog for Barry. I'm wondering if he's a little sensitive about Nigel Poulton 's recent Infosmack jibe about how often this blog gets updated, so I'm stepping in while Bazza contemplates possible topics for his next blog... [Continue Reading]
One of the key benefits of the Storwize V7000 product is its built in Virtiualization capabilites. Or as some vendors like to call it Federation?
Its been almost 9 years since we first released SAN Volume Controller (SVC) and in that time, its been through 6 hardware iterations, and 16 major... [Continue Reading]
One of the internal, and IBM Business Partner mailing groups I subscribe and participate in ( Hi to all on Diskcore ) recently debated :
Want to know whether IBM V3700 are true symmetric active active controllers.
A response was made, but also asked :
Can you define... [Continue Reading]
Tony Pearson has posted a great set of FAQ questions that were answered during a session at last weeks IBM's 2009 Storage Symposium. For any current or prospective SVC users, its worth a read, and it got me thinking I haven't had one of my Q&A posts for a while..
So here is you chance. If... [Continue Reading]
As hinted by my last post, the next release of SVC software is on its way, available in early June, along with the new optional 10Gbit iSCSI support. Since SVC, and V7000 are essentially the same thing, just packaged in different hardware vehicles, all of the software updates apply to both... [Continue Reading]
At the risk of re-gurgitating recent Storage benchmarketing scars and rumblings, its probably escaped most people that we just published another Storwize V7000 SPC-1 benchmark. Why another I hear you ask, well the first one we published was back in November when the product first GA'd.
However, we... [Continue Reading]
... a mid-term interrupt... The storage system behind IBM's PureFlex, PureSystems recent announcement, is of course the IBM Storwize V7000 controller... Check out more details at http://www.ibm.com/ibm/puresystems/us/en/index.html#tab:overview/subtab:default (Hence all my expert video posts over... [Continue Reading]
Your Personal Invitation to the SVC and Storwize V7000 User Group Meeting
This is an unrivalled opportunity for you to meet with and talk to IBM’s leading SVC and IBM Storwize V7000 subject matter experts. Our team will formally present their views on the strategic directions of SVC and... [Continue Reading]
The interop just keeps growing. As you would expect you can today attach the new IBM Storage products behind SVC, running the latest 4.3.0 software. SVC has actually supported XIV since August, we completed the controller qualification during our last SVT cycle, and the IBM Storage teams in the US... [Continue Reading]
This is a bit of an opus I'm afraid, but I've had my hands tied for so long in what I could / couldn't say so think of this as a catch up for my last 6 months of sporadic posting! Please do try to make it to the end, I'm covering a lot here!
In my last post I covered whats coming with SVC 5.1... [Continue Reading]
As I previewed back on the 9th May, the new 6.2 version of the SVC software is now generally available (GA in IBM speak). This software not only supports the latest generation of SVC CG8 node hardware, but the new Model 300 versions of Storwize V7000 - 8x 8Gbit Fibre ports, 4x 1Gbit iSCSI and now... [Continue Reading]
There are two reasons that my blogging this year has been sporadic at best. One, the sheer volume of work, its become the norm at the moment for the whole team to be spending evenings and weekends working on our baby.Why have we been all so dedicated over the last year or so, mainly because we've... [Continue Reading]
I've been waiting for what seems like far too long for this series of posts. The development and test teams have been working flat out for the last year to bring SVC 5.1 to market.
Today IBM issued a press release detailing a little of whats coming next month with SVC release 5 software, the... [Continue Reading]
I thought it was time to get back to some technical content, and with recent blog posts, it clear that there is some confusion over how SVC works. In particular how the actual virtual to physical blocks are mapped, how they can be changed without application disruption, and how you get data into... [Continue Reading]
As we approach SVC's 6th birthday its interesting to see the rest of the industry starting to catch up and realise not only that a modular commodity storage controller is the way forward, but that also clustering of said modular controllers has many benefits. We all await todays announcement of HDS... [Continue Reading]
I mentioned in the summary for 6.2 that we now fully support the VMware VAAI protocols, check out Anthony's blog for a great write up and some real life customer experience using vMotion and SVC offload. ... [Continue Reading]
I'm busy crafting part 2 of my Configuring for Optimal Performance series, meanwhile check out part two of my interview with Hal Jennings hosting IBM's blog talk radio channel , click on the image below :
The kids very kindly passed on their latest 'bring-home' from school - a stinking cold! Been feeling pretty rotten since I got back
from SNWE in Frankfurt a couple of weeks back - so hopefully I didn't pass it on to anyone I met there! Was a great couple of days,
thanks to everyone that came... [Continue Reading]
While catching up on some old and new posts out here I came across an interesting article from Chris Mellor discussing a report about various PCIe card benchmarks performed by the Swiss National Computing Centre (CSCS).
I was going to reply to his post but as I started typing realised I had a... [Continue Reading]
These days I'm spending more and more of my time with customers visiting Hursley wanting to hear
about our smart planet initiatives, how we can help to make their infrastructure dynamic and of course
most of my involvement in this is around presenting how and where SVC and storage... [Continue Reading]
2000-2007 The "Virtual" Storage - SAN Virtualization Appliance Years
First of all thanks again for all the feedback regarding this series of posts, great that people are enjoying a bit of a history lesson, or even a reminder into your own histories!
So where was I... The Hursley... [Continue Reading]
For the last few years we have often talked about 'flexible hardware' options for SVC. While we have offered the internal SAS HBA and SSD attachment within the nodes, and a 10Gbit iSCSI/FCoE capable upgrade, we've never quite made it to true flexible hardware, with respect to Fibre... [Continue Reading]
I know its been a long time since I posted the first to parts in my "optimal performance" series, and I've been promising parts 3 and 4 for some time, but they are more or less written - well the basic information has been distilled into a presentation...
The world... [Continue Reading]
So after all the EMC hype, and all the claims that the DS8000 was "pushing up daises" it seems
that IBM have managed to announce the GA of ship our sub-lun hot-spot management, aka Easy Tier before EMC
have shipped their FAST function.
Now, before you all jump and say EMC have been... [Continue Reading]
As you may or may not have seen, IBM has agreed to acquire Texas Memory Systems : http://www-03.ibm.com/press/us/en/pressrelease/38594.wss This has many implications (all good) for SVC, Storwize V7000, and Pure Systems. Better integration with existing RamSan products, and of course integrated... [Continue Reading]
Well as you have probably read, or heard, the Storwize V7000 is why the SVC team has been so busy over the last 18 months, and why my blogging has been sporadic at best. Hopefully the point of this series of posts is clear, although this is a brand new modular storage box - organically developed by... [Continue Reading]
I see that Hu thought he'd better make up some mumbo-jumbo about their 'chubby-provisioning' solution. I did post a comment but, as usual, his moderating means he ignores comments he doesn't like. I'd point you back to my discussion about random 4K writes randomly across a large volume, say one hits... [Continue Reading]
Hi all, Happy New Year (are we almost in February already!)
This is just a quick heads up, the next UK based SVC, Storwize family User Group meeting is planned for the 8th of May 2013. To register, see here :... [Continue Reading]