Blog Posts

Blog Posts

Items per page
1 ... 18 19 20 21 22 Previous Next

I have noticed a trend when I talk to other netapp users, whenever I bring up "Widelinks" I get that "Puppy on a Dashboard" stare. Ironically that same response seems to flourish via support as well.  I am not sure if I am the only person who bothered to use the technology, but I find it very useful to make our users lives a little easier.

 

For those that havent used Widelinks, they are a way of making a folder on a filer represent a location on a different volume, or even a different system altogether (CIFS ONLY).  It actually uses a DFS referral to do the magic, but it is easier to setup than DFS.

 

One way we use widelinks is to present a single location users connect to i.e. \\filer1\data which actually has subfolders that are on a mix of FC and SATA storage. We have a \\filer1\data\archives that they can move data that is infrequently accessed, which is on a completely different system (an R200 nearstore), they dont need to remember a second path, or have another drive mapped for it. They just drag and drop from one path on \\rffiler1\data to the \\rffiler1\data\archives.

 

Another way it could be used is to have a central location for geographically dispersed data, we are thinking of using it for software installs where we create a folder for each of our geographic regions and then widelinking to filers in those sites so we can use the same path for all our documentation and package writing.

 

We have also used Widelinks to "migrate" cifs data from one system to another. I snapmirrored the data from one filer to another, setup the shares, and then renamed the source folder, created a widelink folder with the original name and pointed it to the new location. Users never even knew the data had been moved, downtime for the data was less than 5 minutes during a scheduled maintenance window.

 

I have found it helpful to use widelinks and hope you all do to, if you want to experiment with them there are numerous papers on the NOW site, and a tool called LN.exe that is useful if you arent unix oriented!

1,282 Views 3 Comments Permalink

My name is Eric Watkins and I have been working at a semiconductor manufacturing company and dealing with Netapp since 2000. I am currently responsible for around 250TB of storage that is accessed via FCP, ISCSI, NFS, CIFS, snapmirror, and snapvault protocols.

I decided to start a blog on things that may not neccessarily be in anyone best practices guide, but can work in the "real world". Many of these things will have the disclaimer "try at your own risk", others may be more supported and hold true to the documentation.

Here we go, Welcome to the Trenches!

753 Views 2 Comments Permalink

The following article was accessed at Techworld.com: http://www.techworld.com

Direct link: http://www.techworld.com/green-it/news/index.cfm?RSS&NewsID=104274

______________________________________________________________________________

 

Green IT News

11 September 2008

IT underestimating coming power shortage

By Tom Jowitt, Techworld

 

UK IT managers are being accused of ignorance over their power consumption figures, despite spiralling energy prices and the looming 'energy crunch', which could lead to power shortages in four years time.

 

IT consultancy The DMW Group, has just published new research that was carried out by Vanson Bourne last month, which surveyed over 100 IT managers and IT directors at UK businesses with revenues exceeding £50 million ($87 million).

 

It found that more than 70 percent of businesses admit they are concerned about future power shortages, but very few are taking any steps to minimise the risk.

 

The survey cited previous data from the power generating company E.ON, which predicts that by 2012, the UK (particularly the south east of England), could experience power 'brown-outs (partial loss of power) or indeed blackouts (complete loss of power).

 

This is because the UK is facing a shortage of power generation due to the fact that many UK power stations are reaching the end of their operating life, or they are facing closure because they contravene European directives. Building suitable replacement power stations, whether nuclear or fossil-fuel, is expected to take at least ten years, when lengthy planning processes, bureaucracy, and environmental debate are taken into account.

 

"We have ourselves have previously said that there could shortfall in power generation by as early as 2016," said a spokesman from rival power generator company EDF. "However we are clearly investing at the moment. We are building a gas fired power station in Nottinghamshire (due 2011). We are also committed to supply 1,000 megawatts of renewable capacity by 2012. We are also clear in our intention to be part of the new nuclear build in the UK."

 

E.ON did not respond to Techworld at the time of writing.

 

The DMW survey meanwhile also found that only 7 percent of UK businesses were able to estimate, with any reasonable accuracy, how much energy their IT operations are using. And 68 percent of organisations did not understand the energy efficiency of their data centres, one of the largest consumers of power for IT operations.

 

"It is certainly true that there are a large number of data centres in the south east of England compared to rest of country," said Simon Williams, director at DMW. "But this is a grid problem. Coal fired power stations are not meeting emission standards, and old nuclear stations need to be replaced. The drop off of generating capacity, plus the steady increase in demand, will mean that by 2012, demand exceeds supply.

 

"The main point from survey was that over half of IT managers are underestimating their IT energy consumption by a factor of two. They have got their numbers wrong," Williams told Techworld.

 

"They are not helped that there are few IT tools out there to measure power consumption," he added. "Knowing for example how many PCs and servers you have, how long they are left on for, etc, is a good start."

773 Views 0 Comments Permalink Tags: uk, power_shortage, power, e.on, energy_efficiency, green_it, green_it, energy_efficiency, e.on, power, power_shortage, uk

Abridged as my memory is not what it used to be

To-morrow, and to-morrow, and to-morrow,

Creeps in this petty pace from day to day,

Life's but a walking shadow, a poor player

That struts and frets his hour upon the stage

And then is heard no more. It is a tale

Told by an idiot, full of sound and fury

signifying nothing." — Macbeth (Act 5, Scene 5, lines 17-28)

As a recent transplant from BEA Systems (AKA Oracle), I was struck with the overriding fear that my opening keynotes from last year’s BEAworld’s (see above), where I suggested that the idiots Macbeth referred to were people who tried to deploy SOA (service orientated architecture) in scale without using a virtual infrastructure, was perhaps misrepresented. Sadly, I’m now of the opinion it was me for not realizing that to enable a truly dynamic or agile applications infrastructure you need dynamic/agile storage.

Fast rewind…

I was asked to keynote at BEAworld on the topic of Virtualization and SOA. I hate the opening moments where you step up on stage and awkwardly introduce yourself, so I had a cunning plan to recite the above soliloquy from Macbeth, and then assert that he was the first SOA architect pointing out that ‘situational applications’ wouldn’t be built and discarded but would stick around and have a life of their own, so it’s a smart thing to plan for the unplanned.

I fundamentally believe we’ve redefined what both an application is and what a developer does, with mash-up, compositions and situational applications. Every employee of a business can construct an application or service and create unforeseen computer load on a data centre - a growing phenomenon as the expedient execution of data to knowledge drives a competitive edge and there’s nobody better than the consumers to know what and how they need this delivered.

This does however create volatility in the applications infrastructure, and I’d assert that to be successful you’d better deploy in a virtualized environment to handle the peek workloads without over provisioning or limiting their potential.

So why do I now see myself as the idiot? Because I glossed over the storage aspects by waving a couple of glib acronyms (NAS or SAN), yet didn’t understand that the majority of alternatives would be like creating the world’s fastest boat, where the anchor’s always deployed.

Now don’t get me wrong, I started my professional career as a backup admin in Fleet Street London for a chartered accountants running up and down stairs with arms covered in reel tapes, so I’m no stranger to this world.

Prime.jpg

Guess what systems I started on?

However, it’s easy to be mono focused and to not take into account the holistic challenges which I fell prey to.

The last few months have been a cathartic experience. I’ve been immersed in NetApp’s data protection offerings and their platform innovations. What’s washed over me is the foresight of the architecture to handle the flexible workloads that the emerged application demands will place.

What excites me is not only how NetApp’s addressed storage flexibility inside the systems (Snapshots, FlexClones, thin provisioning and even hetero consistency groups for those pesky portal composite apps using WSRP), but what really gets me going What’s got me cycling is the ONTAP architecture. ONTAP is so flexible, and yet connected that you could potentially re-factor a primary to a secondary, a primary to a VTL, a Vault, a mirror and so on.

Why is this great? ROA (return on assets), I just love the tangibility of buying something for a specific purpose, yet having the faith that if I want to re-use it, it’s flexible enough to morph to my changing needs.

The subtle marriage of software and hardware yet abstracting to a flexible model allows your assets to be as dynamic as your requirements. I’m sure the adages, ‘do more with less’ and ‘evolutions win over revolutions’ resonate well to ROA.

At this point I’d refer to some obvious candidates as examples: your iPod or iPhone as its features morph and extend, and my personal favorite, the Sonos music systems. OMG, I can’t tell you how excited I get when a new software version is automatically downloaded!

Sonos.bmp

http://www.sonos.com/

If you peruse the successful innovations in today’s technology consumer market, there’s clearly a bias towards data and hardware, somewhat abstracted, architected for change and forming a truly symbiotic relationship.

There’s for sure some road still to travel, but I can’t help but feel NetApp’s closer to the end than the start. Kostadis, my ever passionate and vocal associate, has called this a ‘fantastical journey’, but one I’m sure we’re all embarked on, and one that’s easier if we’re cognoscente of the needs and demands of all the passengers.

I’m very excited to be part of this emergence. I don’t believe there’s an alternative anywhere close to such comprehension of bridging the storage and applications divide and with what’s in the hopper it’s only going to get better.

So to this inaugural blog, I confess and therefore absolve myself of my blinkered optics and cast myself towards the shameless abandon of the new order

1,229 Views 2 Comments Permalink Tags: mirror, vault, vtl, roa, consistency_groups, thin_provisioning, flexclone, snapshots, data_protection, dynamic, agility, sonos, kostadis, soa, virtualization, portal, ontap, netapp, netapp, ontap, portal, virtualization, soa, kostadis, sonos, agility, dynamic, data_protection, snapshots, flexclone, thin_provisioning, consistency_groups, roa, vtl, vault, mirror
RSS feed of this list 1 ... 18 19 20 21 22 Previous Next