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Tony Pearson is a Master Inventor and Senior IT Specialist for the IBM System Storage product line at the
IBM Executive Briefing Center in Tucson Arizona, and featured contributor
to IBM's developerWorks. In 2011, Tony celebrated his 25th year anniversary with IBM Storage on the same day as the IBM's Centennial. 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. You can also follow him on Twitter @az990tony.
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This week was the 2008 MacWorld conference. I thought I would reflect on some of the storage related aspects of the products mentioned by Steve Jobsin his Keynote address.Many were updated version of products introduced last year's MacWorld. (In case you forgot whatthose were, here ismy post that covered [MacWorld 2007]).
(Disclaimer: IBM has a strong working relationship with Apple, and manufacturers technology used in someof Apple's products. I own both an Apple iPod as well as an Apple G4 Mac Mini. IBM supports its employees usingApple laptops instead of Windows-based ones for work, and IBM has developed software that runs on Apple's OS X.Apple is kind enough to extend its "employee discount prices" to IBM employees.)
In the first 90 days of its release, Apple sold 5 million copies, representing 19 percent of Mac users. I am stillone of the 81 percent still using 10.4 Tiger, the previous level. My Mac Mini is based on G4 POWER processor, and upgrading is on my [Someday/Maybe] list. I am not taking sides in the [OS X vs. Windows vs. Linux religious debate]; I use all three.
The key storage-related feature of Leopard is their backup software Time Machine, and Steve Jobs announceda companion product called Time Capsule that would serve as the external backup disk wirelessly, over 802.1nWi-Fi. For many households, backup is either never done, or done rarely, so any help to simplify and relieve theburden is welcome.
Time Capsule comes in 500GB and 1TB SATA disk capacities, which Steve Jobs called "server-grade". What about a 750GB model? Looks like Apple followed EMC'sexample and went straight to 1TB instead. After EMC failed to deliver 750GB drives in 2007 that they [promised back in July], EMC blogger Chuck Hollis explains in his post[Enterprise Storage Strikes Back!]:
So there's something in the EMC goodie bag as well for you -- the availability of the new 1TB disk drives you've been hearing about. We skipped the 750GB drive and went right to the 1TB drive.
Apple iPhone and iPod Touch
In the first 200 days, Apple has sold 4 million phones, and has garnered nearly 20 percent of the smart phone market share. New features include a GPS-like location feature that uses [triangulation] with cell phone towers and Wi-Fi hotspotsto determine where you are located.
I covered last year's introduction of the iPhone in my post on [Convergence].All of the features he presented were software updates to the existing 8GB and 16GB models. No new modelswith larger storage were introduced.
I am a T-mobile customer, so am out of luck until either (a) Apple unlocks their phones from the AT&T network, or(b) Apple signs an agreement with T-mobile in the USA. I reviewed the various hacks to unlock iPhones last year, but was not interested in losing official warranty or future software support.
The iPod Touch is an interesting alternative. It is basically an iPhone with the cell-phone features disabled, whichgives you Wi-Fi over the Safari browser, music, videos, and so on. Steve Jobs mentioned enhanced software updates for this as well. The iPod Touch comes in the same 8GB and 16GB sizes as the iPhone.
AppleTV and iTunes
Steve Jobs indicated that they have sold over 4 billion songs over iTunes, 125 million TV shows, and 7 million movies.He announced that now iTunes would allow for movie rentals, with the option to see them within 30 days, but once you started watching a movie, you have 24 hours to finish. I found it interesting that he said rentals were to reduce space on your hard drive, versus outright purchase of movie content.
In a rare concession, Steve admitted that the original AppleTV misunderstood the marketplace. The original AppleTV allowed you to view pictures and listen to music through your television, but people wanted to view movies. Thesoftware upgrade would allow this, using the iTunes rental model above, as well as watch video podcasts and over 50 million videos posted on YouTube.
Some television-related stats from [z/Journal] were quite timely. The older non-digital TVs could be usedwith the AppleTV and gaming systems like Nintendo Wii.
33 percent of U.S. households do not know what to do with (their older) TVs after digital switch (Feb 2009)
69 percent of Americans think PCs are more entertaining than TV
Rather than try to fight peer-to-peer website piracy, Apple cleverly decided to compete head-to-head against it. This iswell summarized in Matt Mason's 6-minute video [The Pirate's Dilemma]. Eleven major movie studios are on board with Apple's movie rental plans, making thousands of movietitles available for this, with hundreds in High Definition (HD).
I personally have a Tivo, connected wirelessly to a regular non-HD television, as well as my PC, Mac and internet hub, and this allows me to view my photos, listen to my iTunes collection of music and internet radio stations from [Live365], as well as rent movies and TV shows from Amazon Unbox, with prices ranging from free to four dollars.
The theme of this week was "Something is in the Air", an obvious reference to this product, billed as the world's thinnest laptop.John Windsor on his YouBlog writes[Making it Memorable] aboutthe use of a standard office envelope to demonstrate how thin this new MacBook Air laptop is. It is 0.16 inchesat one end, and 0.76 inches as the other end. Unlike other "ultra-thin" laptops, this has a full-size back-lit keyboardand full-size 13.3 inch widescreen. The touchpad supports multi-touch gestures similar to the iPhone and iPod Touch.Intel managed to shrink down their Core 2 Duo processor chip by 60 percent to fit inside this machine. Thebattery is reported to last five hours.
This laptop was designed for wireless access, with 802.1n and BlueTooth enabled. No RJ-45 connection for traditionalLAN ethernet connection, but I guess you can use a USB-to-RJ45 converter.
Storage-wise, you can choose between the 1.8-inch 80GB HDD or a pricey-but-faster 64GB Flash Solid-State Disk (SSD).In a move similar to [getting rid of the 3.5-inch floppy disk in 1998's iMac G3], the MacBook Air got rid of the CD/DVDdrive. While they offer a USB-attachable SuperDrive as an optional peripheral, Steve Jobs gave alternative methods:
Watching movies on DVD
Rent or Buy from iTunes instead
Burning music CDs for your car stereo
Attach your iPod to your car stereo
Taking backups to CD or DVD
Use Time Machine and Time Capsule instead
Installing Software from CD
Wirelessly connect to a "Remote Optical Disc" on a Mac or PC, running special Apple-provided software that allows you to make this connection
Here's a list to the 90-minute[keynote address video]. If you arenot a fan of recycling, saving the environment, free speech or democracy, you can safely skip the last 15 minutes when musical artist Randy Newman performs.For alternative viewpoints on the keynote, see posts from [John Gruber] and [Tara MacKay].
Continuing my business trip through Canada, an article by Richard Blackwell titled [The Double Bottom Line] yesterday's Globe and Mail newspaper caught my attention.Here is an excerpt, citing Tim Brodhead, president of the J.W. McConnell Family Foundation in Montreal:
The bottom line for any business is making a profit, right?
But how about considering a different, or additional bottom line: helping make the world a better place to live in.
That's the radical proposition underlying the concept of "social entrepreneurship," the harnessing of business skills for the benefit of the disadvantaged.
Young investors, in particular, now want their investments to produce both financial and social returns, he noted.
Until recently, "we could either make a donation [to a charity] and get zero financial return, or we could invest and get zero social return." People now want more of both, but rules governing charities and business make that tough to accomplish.
One stumbling block is the imperative - entrenched in corporate law - that managers and directors of for-profit companies have a fiduciary duty to maximize profits. That structure is a brick wall that limits the expansion of social entrepreneurship, Mr. Brodhead said.
Some companies have embraced the new paradigm of a double bottom line, even if they are uncomfortable with the "social entrepreneur" label.
This fiduciary duty to maximize profits is discussed in the 2003 documentary[Corporation]. However, some organizations are now trying to aligntheir goals, finding ways to benefit their investers, as well as society overall. For example, organization [ONE.org] helped launch [Product (RED)]:
If you buy a (RED) product from GAP, Motorola, Armani, Converse or Apple, they will give up to 50% of their profit to buy AIDS drugs for mothers and children in Africa. (RED) is the consumer battalion gathering in the shopping malls. You buy the jeans, phones, iPods, shoes, sunglasses, and someone - somebody’s mother, father, daughter or son - will live instead of dying in the poorest part of the world. It’s a different kind of fashion statement.
The company, which has operated in Africa for nearly six decades, expects to increase its investment by more than $US120 million (more than R820 million) over the next two years. In the coming year, IBM expects to hire up to 100 students from Sub-Saharan universities to meet the growing demand in services, global delivery and software development.
"The Sub-Saharan African market is poised for double-digit growth flowing from the development and expansion of telecommunications networks, power grids and transport infrastructure," said Mark Harris, Managing Director, IBM South and Central Africa. "Private and public sector investment in the region is transforming the ability of the market to participate in the global economy."
A recent IBM Global Innovation Outlook (GIO) [report on Africa] indicates that the economies ofdozens of African nations are growing at healthy rates, the best in the past 30 years, with 5.5 to 5.8 percent averageacross the continent. This supports last month's news that [Top IBM thinkers to mentor African students]:
Hundreds of IBM scientists and researchers will mentor college students in Africa. Called Makocha Minds (after the Swahili word for "teacher"), the program will reach hundreds of computer science, engineering and mathematics students.
Makocha Minds is an off-shoot of IBM’s Global Innovation Outlook, an annual symposium of top government, business and academic leaders that uncovers new opportunities for business and societal innovation. "African students need to be trained in entrepreneurship so that they get out there and not just make jobs for themselves but create opportunities to employ others as well,” said Athman Fadhili, a graduate student at the University of Nairobi (Kenya).
Most of the mentoring will be via email and online collaboration.
Mentoring via email and online collaboration is very reasonable. I have mentored both high school and collegestudents through a partnership between IBM Tucson and the Society of Hispanic Professional Engineers[SHPE]. While thekids were all located in Tucson, I rarely am, traveling nearly every week, but I madetime for the kids via email and online collaboration wherever I happened to be.
To make this work, we need to get email and online collaboration in the hands who need them.I got my email thanking me for being a "first day donor" to the One Laptop Per Child "Give 1 Get 1" (G1G1) project,and have added this "badge" to the right panel of my blog. If you click on the badge, you will be takento a series of YouTube videos that further describe the project.
According to the email my donated XO laptop will soon be delivered into the hands of a child in Afghanistan, Cambodia, Haiti, Mongolia or Rwanda.
How do these work? Instead of buying your uncle yet another $25 necktie, consider buying a $25 Kiva certificate.The $25 dollar "micro loan" goes to someone in the third world to improve their situation, start a business, geta job, and so on, and you give your uncle a Kiva certificate so that he can track the progress. I think that isvery clever and innovative.
Last week, a writer for a magazine contacted us at IBM to confirm a quote that writing a Terabyte (TB) on disk saves 50,000 trees. I explained that this was cited from UC Berkeley's famousHow Much Information? 2003 study.
To be fair, the USA Today article explains that AT&T also offers "summary billing" as well as "on-line billing", but apparently neither of these are the default choice. I can understand that phone companies send out bills on paper because not everyone who has a phone has internet access, but in the case of its iPhone customers, internet access is in the palm of your hands! Since all iPhone customers have internet access, and AT&T knows which customers are using an iPhone, it would make sense for either on-line billing or summary billing to be the default choice, and let only those that hate trees explicitly request the full billing option.
Sending a box of 300 pages of printed paper is expensive, both for the sender and the recipient. This informationcould have been shipped less expensively on computer media, a single floppy diskette or CDrom for example. Forthose who prefer getting this level of detail, a searchable digitized version might be more useful to the consumer.
Which brings me to the concept of Information Lifecycle Management (ILM). You can read my recent posts on ILM byclicking the Lifecycle tab on the right panel, or my now infamous post from last year about ILM for my iPod.
His recollection of the history and evolution of ILM fairly matches mine:
The phrase "Information Lifecycle Management" was originally coined by StorageTek in early 1990s as a way to sell its tape systems into mainframe environments. Automated tape libraries eliminated most if not all of the concerns that disk-only vendors tout as the problem with manual tape. I began my IBM career in a product now called DFSMShsm which specifically moved data from disk to tape when it no longer needed the service level of disk. IBM had been delivering ILM offerings since the 1970s, so while StorageTek can't claim inventing the concept, we give them credit for giving it a catchy phrase.
EMC then started using the phrase four years ago in its marketing to sell its disk systems, including slower less-expensive SATA disk. The ILM concept helped EMC provide context for the many acquisitions of smaller companies that filled gaps in the EMC portfolio. Question: Why did EMC acquire company X? Answer: To be more like IBM and broaden its ILM solution portfolio.
Information Lifecycle Management is comprised of the policies, processes,practices, and tools used to align the business value of information with the mostappropriate and cost effective IT infrastructure from the time information isconceived through its final disposition. Information is aligned with businessrequirements through management policies and service levels associated withapplications, metadata, and data.
Whitepapers and other materials you might read from IBM, EMC, Sun/StorageTek, HP and others will all pretty much tell you what ILM is, consistent with this SNIA definition, why it is good for most companies, and how it is not just about buying disk and tape hardware. Software, services, and some discipline are needed to complete the implementation.
While the SNIA definition provides a vendor-independent platform to start the conversation, it can be intimidatingto some, and is difficult to memorize word for word.When I am briefing clients, especially high-level executives, they often ask for ILM to be explained in simpler terms. My simplified version is:
Information starts its life captured or entered as an "asset" ...
This asset can sometimes provide competitive advantage, or is just something needed for daily operations. Digital assets vary in business value in much the same way that other physical assets for a company might. Some assets might be declared a "necessary evil" like laptops, but are tracked to the n'th degree to ensure they are not lost, stolen or taken out of the building. Other assetsare declared "strategically important" but are readily discarded, or at least allowed to walk out the door each evening.
... then transitions into becoming just an "expense" ...
After 30-60 days, many of the pieces of information are kept around for a variety of reasons. However, if it isn'tneeded for daily operations, you might save some money moving it to less expensive storage media, throughless expensive SAN or LAN network gear, via less expensive host application servers. If you don't need instantaccess, then perhaps the 30 seconds or so to fetch it from much-less-expensive tape in an automated tape librarycould be a reasonable business trade-off.
... and ends up as a "liability".
Keeping data around too long can be a problem. In some cases, incriminating, and in other cases, just having toomuch data clogs up your datacenter arteries. If not handled properly within privacy guidelines, data potentially exposes sensitive personal or financial information of your employees and clients. Most regulations require certain data to be kept, in a manner protected against unexpected loss, unethical tampering, and unauthorized access, for a specific amount of time, after which it can be destroyed, deleted or shredded.
So ILM is not just a good idea to save a company money, it can keep them out of the court room, as well as help save the environment and not kill so many trees. Now that 100 percent of iPhone customers have internet access, and a goodnumber of non-iPhone customers have internet access at home, work, school or public library, it makes sense for companies to ask people to "opt-in" to getting their statements on paper, rather than forcing them to "opt-out".
Avi Bar-Zeeb of RealityPrime has an interesting post aboutHow Google Earth [really] Works.Normally, people who are very knowledgeable in a topic have a hard time describing concepts in basic terms. Avi was one of the co-founders of Keyhole, the company that built the predecessor for Google Earth, and also worked with Linden Lab for its 3D rendering it its virtual world, so he certainly knows what he is talking about. While he sometimes drops down into techno-talk about patents, the post overall is a good read.
It is perhaps human nature to be curious on how things are put together and how they function, leading to the popularity of web sites like www.howstuffworks.com that cover a wide range of topics.
Many things can be used without understanding their internal inner workings. You can put on a pair of blue jeans without knowing how the cotton was made into denim fabric; lace up your favorite pair of running shoes without understanding the chemical make-up of the plastic that cushions your feet; or drink a glass of beer after your five mile run without knowing how alcohol is processed by your liver.
For technology, however, some people insist they need to know how it works in order for them to get the most use of it. When shopping for a car, for example, a guy might look under the hood, and ask questions about how the engine works, while his wife sits inside the vehicle, counting cup holders and making sure the radio has all the right buttons.
Not all technology suffers from need-to-know-itis. For example, the Apple iPod music player and the Canon PowerShot digital camera, are both just disk systems that read and write data, with knobs and dials on one end, and ports for connectivity on the other. Everyone just asks how to use their controls, and might read the manual to understand how to connect the cables. Few people who use these devices ask how they work before they buy them.
Other disk systems, the kind designed for data centers for the medium and large enterprise, apparently aren't there yet. Storage admins who might happily own both an iPod player and a PowerShot camera, insist they need to know how the technologies inside various storage offerings work. Is this just curiosity talking? Or are there some tasks like configuration, tuning, and support that just can't be done without this knowledge? Does knowing the inner workings somehow make the job more enjoyable, easier, or performed with less stress?
I'm curious what you think, send me a comment on this.
Today,Apple and EMI announced that EMI’s entire music and video catalog will be available in May without any digital rights management (DRM) protection.Not only with the music be higher quality, but can be played on any player, presumably using MP3 format instead ofApple's proprietary AAC format. Being locked into any single vendor solution is undesirable. Similar issues abound for Microsoft Office 2007 file formats.
On my iPod, I ripped all my CDs into MP3 format, not AAC. I love my iPod, but if I ever decided to chose a different MP3 player, I did not want to go through the time-consuming process or re-ripping them again.
A blog by Seth Godin feels this Apple-EMI announcement means thatDRM is dead.
Back when music labels added value by producing and distributing music in physical form, it made sense for them to take a cut. Mass-producing CDs and distributing them out to music stores across the country costs lots of money. However, for online music, music labels don't have these same overhead costs, but continue the process of paying the artists only a few pennies per dollar. Some artists have file lawsuits to get their fair share.
This process applies to any published work. For example, you can purchase Kevin Kelly's book in various formats, at different prices, from different distributors. For example:
In PDF for $2, directly from the author via PayPal
black-and-white hardcover, for $20, from Amazon
color softcopy, for $30, from Lulu
Each nets the author $1.50 in royalties per copy. You can decide how much in production and distribution costs you want to pay.
Wrapping up my week's theme of "diversity", with posts on a diverse set of topics,today I will suggest ways to spendyour time while you are walking 10,000 steps per day, as recommended by the authorsof the book "You: On a Diet".
(If you thought this was about the 10,000 steps it might take to implement a storage solution, you should switch over to IBM as your storage vendor. For example, the DS3200 and DS3400 can beimplemented in as little as SIX steps. That's pretty cool.)
Blogs like Lifehacker are an excellent resource for neat littletips and tricks to help you throughout your day, like how to use your iPod, cell phone or computer better, for example. These suggestions are based on the idea that you can walk your 10,000 steps with access to an iPod and cell phone.
Learning a language
... or refreshing yourself on a language you might not have spoken in a while. In addition to formal audio-based lessons from Pimsleur, there are podcasts you can get for various languages. In preparation for my upcoming trip to Japan and China, I have been listening to JapanesePod101.com and ChinesePod.com which have quick lessons that complement the formal training.This Lifehacker postindicates there are similar ones for French, Spanish, Italian, and Brazillian Portuguese.
Practicing your presentation
Walking while practicing your 30-60 minute presentation would be good exercise.MicroPersuasion explains how to turn your iPod into the ultimate PowerPoint accessory, and this article in PlayListmag.com providesthe steps to get a PowerPoint presentation onto your iPod. I did this, and the slides are found underPhotos->Photo Library. The images are small, but heck, they are your charts and you should recognize themwell enough to remind yourself what to say on each slide.Also, I am able to record my practice sessions using MP3 Recorder and listen as I page through each slide. (In theory, you can use your iPod to present your slides to your audience, plugging the iPod directly into the laptop projector, instead of a laptop, using cables available at your local Apple store, and use the iPod controls as your forward/backward remote.)
Working your To-Do list
You can download your to-do list to your iPod. I use BackPackIt from 37 Signals. You can sign up for a free account, or upgrade to a paid account, and have anamazingly simple browser-based tool to develop your to-do lists, one for each project or aspect of your life. Oncedone, the list can be emailed to you as plain text. Enable your iPod as an "external disk drive" and copy this text file to your NOTES directory on the iPod drive. Voila! You can now read your to-do list! (I could also send it to my cell phone, using firstname.lastname@example.org, but I find the iPod easier to read and navigate)
Think of something to add? Send an email from your cell phone. With BackPackit, I can send an email that will directly add my text as a note or todo list item. On my phone, this is simply sending a text message to "500" with text like:
"email@example.com todo # buy bread".
The hash mark (#) separates the subject line from the body of the email, and this is how Backpackit knows its a todo item or a note. If you pre-program the huge email address in advance on your phone, then it isn't as bad as it looks. It will be on your packpackit page the next time you log in.
Well, that's three suggestions. The next time you complain that there is no time to walk, you now have no excuse.
I would fall into the "not for me" category, at least at this time. The iPhone is GSM-capable phone with the ability to store 4GB or 8GB of music, photos and video, and has incorporated a 2 megapixel camera. Currently, I have separate components:
A cell phone that is GSM plus CDMA, with features like "speakerphone" which I use quite a lot, but NO camera.
A 7 megapixel camera, also very small, with removable memory cards.
A 60GB iPod, with music and photos. My model is older and doesn't handle videos.
Since I visit government agencies, research and development labs, and other places that don't allow cameras, I have to either chose a cell phone that does not have camera capability in it, or have a camera phone that I leave behind in the car or at the front desk. I have chosen to get cell phones with NO camera. So, NOT having a camera is a primary feature I look for, but this is getting harder and harder these days. I don't know if Apple plans to have a non-camera version of their iPhone, but that would be a deal-breaker for me.
I do carry a separate camera, and where it is permissible, use it separately. This is especially useful if you do a lot of whiteboard or flipchart presentations, and want to capture what you have written for later. (For a great example of how effectively whiteboards can be used, check out these videos from UPS.)A picture is worth a thousand words, and is easier to convey an idea with pictures, especially in countries that may not speak English. Last month, I got a 7 megapixel camera to replace my 5 megapixel. For my work, 2 megapixel as found in the iPhone is not detailed enough.
As for my iPod, I enjoy that I can carry 60GB of music and photos. When I go on vacations, I can bring my camera and iPod, and connect the two, transferring and viewing the pictures that I take. I can easily free up 5-10 GB of space on my iPod for photos in preparation for a trip, then replace that with music when I am back at home. I also use my iPod as a remote disk drive for my laptop on business trips. Again, the 4GB and 8GB may not be enough for what I need.
Printers were never converged into Personal Computers, but they did have their own convergence. I have a multi-function printer/scanner/fax machine. I used to have separate printer, scanner and fax machines, but now the technology is so inexpensive that it got all combined into one solution.
The same is happening for Storage Area Networking gear.
Thanks to Fibre Channel, switches and directors can handle both SCSI commands (FCP) and CCW commands (FICON). This allows the mainframe and distrbuted systems to converge their traffic onto a single network, and is less expensive than trying to maintain one network for the mainframes, and another for the distributed platforms.
On the SCSI side, there are now switches that let you have pluggable ports of different flavors. For example, you can have some ports be Fibre Channel to receive FCP, and other ports to be Ethernet to carry iSCSI. iSCSI is a protocol co-developed between IBM and Cisco to carry SCSI commands over Ethernet. Since most computers already have Ethernet "network interface cards" and most buildings are already wired with an Ethernet infrastructure, this provides a less expensive alternative to Fibre Channel.
Routers, and combination Router/Switches, can send all the FCP/FICON/iSCSI traffic over various long distances to remote data centers, using either iFCP or FCIP protocols. This is a less expensive alternative to dropping your own private "dark fiber" between the two locations, which often involves negotiating access rights to dig trenches through other people's property.
Which brings me back to Apple's iPhone. One device can make calls, watch video, and download webpages all because the networks have converged into sending all data in "packets". The network just routes packets from one place to another. It doesn't care that a packet is a voice packet, a video packet or a webpage packet. It doesn't matter.
"Users can pay for groceries and other purchases by swiping a phone over a reader that electronically communicates with a microchip on the phone. Phone owners confirm the purchase with the push of a button and the deal is complete.
The platform is the result of many years of trials around the world and will enable mobile contactless payments, remote payments, person-to-person payments, and mobile coupons."
I wasn't at the event, but thought it would be good to explain some basic concepts ofInformation Lifecycle Management (ILM),using the files on my iPod as an example. (Disclosure: IBM makes the technology inside many of Apple's computers, and so IBMers get to buy Appleproducts at employee prices. I own a Mac Mini based on IBM's POWER4 processor, and an iPod Photo 60GB model).
I have 20,000 MP3 music files, representing 106GB of data. This fits nicely on my 250GB external disk system attached to my Mac Mini, but won't all fit on my little 60GB iPod. I needed a way to decide what music I keep on bothmy iPod and Mac Mini, and which I keep only on my Mac Mini. When I am traveling, I am able to listen only to the musicin the first group, but when I am at home, I am able to listen to all my music in both groups.(Another disclosure: I use my Tivo connected to my LAN to play all my MP3 music through my home stereo system.I had my entire house wired with Cat5 to make this possible.)
Apple's iTunes software lets me decide which MP3 files are copied to my iPod using "playlists". A playlist is a list of songs. Fixed playlists are created manually, each song copied to its list in a specific order. Smart playlists are createdautomatically, via policy. I give it the criteria, and it finds the songs for me. If I import a new music CD,none of the songs will be added to any fixed playlists, but could be added to my smart playlists if I set the policiescorrectly. Apple iTunes supports both "include" and "exclude" methodologies.
I use primarily smart playlists, based on genre and rating. I have tried to keep the number of genre down to a small manageable list:
Rhythm & Blues
Of course, what I have for genre may not match what's in theGracenote database, so I sometimes have to makeupdates to match my convention. I've picked these based on my different "applications" for my music. For example, I listen to Ambient music to help me fall asleep on airplanes, but Rock when I exercise at the gym.
Next, I use the ratings from one to five stars. The advantage to the rating is that I can change them on-the-fly directly on my iPod. All other "metadata" has to be entered only from the keyboard of my Mac Mini.
Files for Mac Mini only, not copied to my iPod
Non-mix, copied to my iPod, but typically spoken words, such as language lessons
Mix, music to include in my music mixes
Keep on my iPod, but re-evaluate
So, I have five smart playlists, "One Star", "Two Stars", etc. for each rating, and have decidedto keep only the 2, 3, 4 and 5 star songs on my iPod, by simply putting check marks on those playlists to copythem over. I have about 50 songs with 5 stars, and 8000 with 3 stars, and the rest in the other categories,leaving me a few GB to spare.
I also have playlists for each genre, "Rock mix", "Pop Mix", "Ambient Mix", etc. where I have selected thosethat match the genre, AND have 3, 4 or 5 stars. In this manner, I can listen to a mix. If I find a song mis-classified for that genre, I change it to four stars, which serves as myreminder to re-evaluate when I am back at home on my Mac Mini. If I don't want a song in my mix, I just lowerit to 2 stars. I want it off my iPod altogether, I lower it to one star.
This method is simple enough, and allows me to enjoy my music right away, and more effectively, without having to wait for completely finishing my classification process.
Next week, I'm traveling to Africa (purely vacation, not related to my job, my senator, or myinvolvement in anycharitable organizations). My Canon camera has only a 1GB IBM Microdrive, but I am able to offloadmy pictures to my iPod, connected via USB cable, and review the pictures on the little 2-inch screen. By simply "unchecking" my 2-star and 3-starplaylists, and checking only those mixes I plan to take with me, I was able to clear 17GB of space, plenty ofroom for all my photos of elephants and giraffes, but still plenty of music to listen to. Thanks to my simple methodology, I was able to do this with minimal effort, and willhave no problem putting all my music back when I return.
When evaluating an ILM process, many people are overwhelmed by their fear of the classification process, when in reality it doesn't have to be so complicated.
Is there an "iTunes" for the storage in your datacenter? Yes! It's called IBM TotalStorage Productivity Center. It can help you list and classify all the files in your IT environment,including files in your internal disks inside the servers, your NAS and SAN external disk systems, across both IBM and non-IBM hardware.It's a good thing to consider as part of your overall ILM strategy.