SethBlog

I got a new battery for my 15″ MacBook Pro today. My computer is nearly two years old, and I was sad to give up my beloved 12″ PowerBook at the time I got it, but I really love it now. Sadly, I used it so much the battery was down to less than two hours on a charge, instead of the original 4+ hours. Today, with a shiny new battery in the laptop, I’m showing over four hours left as I type this…

I see a lot of students in my cubicle who have batteries that won’t even last 5 minutes, yet they want to blame the computer, as if it’s defective. Sadly, that’s not the case, if you buy a laptop and you use the battery daily, you need to be prepared to replace the battery after a couple of years. They’re expensive, and paying that out can be painful, but everyone I convince to do it remarks how their computer is like new again.

In short, next time you buy a laptop, just make sure you take into account that you’ll probably need to replace that battery after a couple years, and don’t wait too long to do it, as a notebook you can’t unplug is just a slow desktop…

I noticed tonight that WGN is now live in HD on channel 404 on CFU cable. TiVo doesn’t have guide data yet for what programs are on, but the channel is live…

This clip made me laugh really, really hard, kudos to Ana Marie Cox:

For those of you who “don’t get it”, you’ll have to check out the, um, “adult” practice that teabagging is slang for. Do not click this if you are easily offended.

[Via Andrew Sullivan's Blog]

While I don’t know if the newly released App World is going to create the huge number of apps for the Blackberry that currently exist for the iPhone, I am glad to see that Amazon has released a client for it. This should make my comparison shopping much easier when I’m out and about…

Congrats to Vermont on being the first state to legalize same-sex marriage via the legislature. I’ll be curious to see what those against gay marriage on the grounds of “judicial activism” have to say now that the legislature has passed such a law, twice, even overriding the governor’s veto. I bet Vermonters are feeling even more proud today than we Iowans did last week.

Word on the street is that Old Chicago will open in Cedar Falls on Monday, April 13. You heard it here first.

I started smiling a huge smile on the way to work this morning, as I heard the breaking news that Iowa’s Supreme Court has ruled unanimously in favor of marriage for same-sex couples, making us the fourth state in the union to have them. While it’s not as good as being first, it makes me proud to be an Iowan today!

I’ve been using Mozy ( now owned by EMC) for the last couple of months for my home PC, and I’m pretty impressed. The initial backup takes a while, (14 hours for me) due to the slow uploads that are typical of residential cable internet, but my daily backups tend to take less than a minute, since the software is smart enough to back files up at the block level, rather than the file level. With a little Googling for coupons, it wound up costing me about $40 for a year of unlimited backup service, which seems reasonable to get all my files, photos, and tax records automatically out of the house daily to save me from disaster.

I also looked at their MozyPro service, which is actually pretty decently priced as compared to the backup service I run at work. They charge $6.95 per server per month, plus 50 cents per GB per month. The major downside that I see is that you can only restore from the last 30 days. That’s really all you need for disaster recovery, of course, but it doesn’t protect you from the user who deletes something and doesn’t notice it’s gone until the next semester.

While I don’t think Mozy is going to be replacing our campus backup system anytime soon, it might be a viable alternative for those areas who are doing workstation backups, as it eliminates the need to leave
the machine on for the scheduled backup job (Mozy just runs whenever the user turns the box on). Workstations are cheaper than servers, at $3.95/month + 50cents/GB.

If you haven’t already, read Part I first.

So, what am I considering for hardware? I’m considering several options, here is my homegrown solution, if I couldn’t afford a Filer/NAS device:

Homegrown student storage system:

I planned on filling that MD3000i with 15 1TB disks, and when you get to that level of storage, you seriously need to consider how you’re going to back it up. Right now, we protect a little over 15TB with our current backup systems on campus, so I’d nearly be doubling the size if I fed this data into our existing system. Doing full backups over the network each week would take far too long, so I’d need to utilize synthetic backups in order to reduce the amount of network traffic and the size of the backup window required. To do that, I looked at the DL2000 system, with two shelves of disk storage attached to it. This is essentially a 2U Dell Server, with Windows and Backup Exec (or CommVault) installed, and shelves of disk attached to the back of the server to use for storing the backups. While we typically use NetBackup, I’ve fairly familiar with BackupExec, and knew that it could perform synthetics necessary to reduce network traffic. Purchasing a dedicated backup system for this project also made some sense because I could predict the annual cost of the backups quite easily. Our NetBackup system is run on a charge-back basis, based upon how many GB each “customer” on campus is protecting with the system, as that number would fluctuate wildly, so would backup charges. Using our NetBackup system would be cost-effective if the student storage system stayed small, say under 2 TB, but if it hit 10TB, it would be extremely expensive to feed into our other backup boxes.

Now, if I go back to my list of possible protocols that would be useful in this project, which can I provide with this solution?

So what are the pros & cons of this approach?

Pros:

Cons:

Stay tuned for Part III next week.

Just testing my blog, now that I’ve updated to WordPress 2.7.1. It should look the same to the users, but the UI is waaaay different on my end…