Tag: technology

A friend recently asked a very good question, “What disk tools should be in a persons disk utility collection for backup/recovery of a Mac?” At the top of my list is two applications: SuperDuper! ($28) and Chronosync ($30).

SuperDuper is in a class of utilities used to duplicate the contents of your hard drive. There are other options (Synchronize! Pro X – $99, Carbon Copy Cloner – $5, Retrospect), but none that deliver so much for the money.

I owned Synchronize! Pro years ago but gave up on it during the switch to OS X. CCC was the perfect (and only) tool for duplicating OS X drives for quite a while. I used and recommended it for a few years. It’s so good and cheap that I paid the suggested donation for it several times. It “just works.” However, CCC has grown rather long in the tooth. As new versions of OS X arrived, it has been slow to get updated and even the latest version today does not support all of OS X’s file metadata features.

Say hello to SuperDuper.

Like CCC, SuperDuper will duplicate your drive contents from one drive to another, for free. However, with your paid registration, SuperDuper uses a sync engine that copies just the changes from one drive to the other. It works quite well and you (and I) are much more likely to back up often if only takes a few minutes (versus hours). I have a few bare ATA disks with sticky notes on them, so I know which computer they are for. I hook them up to my WiebeTech ComboDock and back up periodically. It works well.

The other half of my backup equation is keeping my home directory in sync between all of my computers. With two laptops and two desktops, keeping them all “up to date” is no small challenge. I have tried several solutions, including OS X Server 10.4 and portable home directories. However, the easiest to use and most reliable solution is using ChronoSync. I configure it to sync my entire home directory, minus Library, Movies, and Music. The latter two I exclude because they simply won’t fit on laptop hard drives. I only sync a small subset of my Library folder.

I run ChronoSync on an “as needed” basis, like right before I’m leaving the house, or when something is not on the laptop. Then I sync that laptop to my primary desktop system. ChronoSync has very good conflict resolution tools built in to help you sort out which version of a file you want to keep when both have changed since the last sync. It can also archive changed files and other nifty tricks. It is well worth the modest fee. Between those two apps, I can do everything I ever need to with my drives.

Notes:

Retrospect: the software from OS 9 days that I’m so pleased to no longer need. While Retrospect worked quite well, it was never easy to use, and thus I was always needed to help when clients needed to set up new backups, restore from them, or do anything more complex than inserting new backup media. It is not a good solution for end users.

Another good “Backing up a Mac” article.

There’s nothing like being away from home for most of the summer to make one realize just how much junk mail is arriving. We get at least one credit card offer a day and 3 morgtage protection insurance offers a week on top of local ad mailers (which are at least somewhat relevant). Today I found a Privacy link on the FTC web site that led me over to the OptOutPrescreen web site.

On the OptOutPrescreen site you can tell the “Big 3” credit reporting agencies not to provide your information to credit card and insurance companies that are “prescreening” you to determine if they want to mail you offers. Hopefully I just cleaned up our “postal” mailbox and helped save a few trees.

NOTE: This is different from the Do Not Call registry in that is is per-by-person so in our case, Jen and I must both opt-out.

I have used Parallels Desktop on my 20″ iMac since well before it was released, including most of the public beta versions. When they offered it for sale, I bought it without hesitation. In short, the software is much better than one would expect for the price.

One thing I must note about Parallels. Do not expect much if your system is RAM starved (ie, you have less than 768MB). Your poor mac will be paging to disk almost constantly and you’ll wonder why your blazing fast computer is so slow. That is because you are beating the tar out of your hard drive. Do yourself a favor. Spare your hard drive (and your precious data) by spending $160 for 2GB of RAM. I did this on my 20″ iMac and my MacBook and both scream.

I use Parallels for running three different operating systems, FreeBSD, Linux, and Windows XP. Since I develop software that runs on the first two, I regularly need access to them both so I am often running one of them in the background. I can code, rsync to the virtual server, test, and continue coding. I open SSH sessions to the virtual server just as if it were a real one. For nearly all intents and purposes, running these operating systems under Parallels is every bit as good as running them on a real server.

In some respects, it is quite a bit better. Since Parallels has come out, the dual 3.0GHz Xeon system that I have tucked away in a rack in our guest bedroom (because the fans are so loud) has not been powered up. In many ways, Parallels is much better than having a real server.

1. It uses far less power, dissipates far less heat, and generates almost no noise pollution which is quite nice in my Texas home.

2. Convenience. My dual Xeon is a server, so switching operating systems meant going into the other room, unplugging the active hotswap hard drive, and plugging in another. With Parallels, simply pause the running one, select another and start it up.

3. Portable. The dual Xeon is anchored to the rack in the closet. My virtual machines can be dropped onto my MacBook drive for portable access. I spent two months away from home this year and that feature was significantly better than dragging along another computer for testing.

4. Easy snapshots. I like to test my software on “virgin” boxes. This means reinstalling the OS quite frequently on a “real” server, or as I do on the Xeon, building a FreeBSD jail to test in. While the SATA disks in the iMac cannot keep pace with the Ultra320 SCSI disks in the server, I can generate a new system with a clean install simply by duplicating a Parallels disk image.

5. Leverages existing computing resources. I already have a really fast desktop, more than fast enough for development work and software testing.

6. More accessible. Because my virtual machines are so much faster (than Virtual PC on a dual G5), I use them much more frequently. Things I would have seldom have taken the time for such as, “I wonder what this looks like in IE for Windows” I check. There is value in that for developers.

7. Stability. My systems never crash. Anything that changes that makes me particularly grumpy. I have had only one crash while running a very early beta of Parallels. I stopped using it until the next beta came out and it’s been steady as a rock every since.

There are a couple downsides to using Parallels. For example, I could not run Virtual PC 2004 for Windows under XP when XP was running under Parallels.

You need enough RAM for Mac OS X (1GB min on Intel systems) and the operating system you will run. For most people, that will be XP which should have 512MB set aside for it.

Parallels is highly recommended.

Thank you myspace, for providing your users with a simple mechanism for stealing not just my images, but also my bandwidth. After perusing my web server logs to find the root of another problem, I noticed a significant amount of my images being served for myspace profile pages.

With a glint in my eye and a small grin, I have just single-handedly caused a rash of 403 Forbidden errors to appear on the pages of many myspace users. I doubt having broken images on a myspace profile is cool nor would having a random sysadmin expose your thievery to your fan base.

I can’t stop them from stealing my images, but I can stop them from stealing my bandwidth.

On June 13th, two 1GB RAM chips arrived. I got my cart before the horse.

Two days later, my new white MacBook showed up. I bought the 512MB/80GB/SD configuration from Apple. The free iPod deal for students made it irresistable. I ordered the 2GB of RAM from NewEgg, for a $300 savings. Unfortunately, I did not have the screwdriver required to remove several screws from the RAM slot covers so I used the MacBook in its standard config for a couple days. While being fast at certain operations, it was no speed demon. It doesn’t take a computing genius to discover that at 512MB, it was starved for RAM.

The video card is integrated providing 64MB of VRAM by pilfering 86MB from the system RAM. Combine that loss with Rosetta and the RAM required for OS X itself and your system will enter the land of swap and sluggish performance in a hurry. If you love your MacBook, do not use it with only 512MB of RAM. Be kind to your hard drive (buy enough RAM that the system rarely swaps) and it will in turn be kind to your data. Apple’s upgrade to 1GB is reasonably priced and will suffice for most users. I regularly have Address Book, Mail.app, FireFox, Safari, iChat, iTunes, iCal, Terminal, and a random assortment of other apps all running so I can rapidly jump back and forth between them. This can be nicely accomplished with the PowerPC based Macs with 1.5GB of RAM, but on the Intel systems, I find 2GB is just right.

After Google maps helped me locate a Radio Shack, I bought yet another miniature tool set and installed my RAM. Since then, I have only one other complaint about the MacBook. While the display is nice and bright, the field of view is quite poor. When Jen and I watched a DVD in bed, we could not get it situated so that both of us could see it well. You could consider this a security feature, but I suspect that more often than not, it’ll be annoying when you want to share what is on your screen with someone else. Personally, I prefer my PowerBook screen where colors are what they are, even after shifting your head an inch in any direction.

Now that I’m done complaining, it’s time to extoll the virtues of this little beauty. For starters, there is no longer a “latch.” A magnet holds the iBook closed so it is very easy to open one handed. Once opened, the screen really is quite nice. Colors are rich and vibrant and text is nice and sharp, so long as you are directly in front of it, don’t move about much, and are not in the sun. My fingers love the keyboard. They have a longer throw than the PowerBook keyboard so I make fewer typing mistakes. I cannot imagine a touch typist who would not like it…but I do miss the backlighting.

After sticking in the extra RAM, the slowdowns all went away. Now everything runs really, really fast. I have been working on a few web development projects so I edit the pages locally (vi and TextMate), serve them via Apache, and view them in Firefox. On several occasions I synced the site from my iMac to the MacBook and continued to work while Jen drove us away. Did I mention that the MacBook is really fast? Speed has been my primary dissatisfaction with the aging PowerBook and I’m happy to report that the issue has been resolved completely. The Core Duo is a smokin’ fast chip.

The rest of its virtues are nearly identical to the features I enjoy on my Core Duo iMac: better quality iSight, built in speakers and mic, airport & bluetooth, slot loading SuperDrive, remote control for Front Row, etc. I won’t miss the modem as I rarely used it except when trying to send a fax. The battery life is much better than a PowerBook (or a MacBook Pro) for that matter. I really do prefer the larger screen but having the extra battery life from the MacBook could quickly endear me to it. The new larger trackpad is very nice and I like being able to right click and scroll with it.

Finally, a requisite application for any laptop of mine is GPS and mapping. Route 66 still works, but via Rosetta which is not terribly fast. I was able to pair my GPS receiver up with Mac OS X, and then share it to Windows XP running under Parallels Desktop. XP saw it as a serial device and MS Mappoint saw it and it immediately worked. Now that I can run Windows quickly and get XP to see my bluetooth GPS, I have a lot of choices for mapping software. Very, very, nice.

Speaking of Windows, XP installed just fine under Boot Camp. It runs just like Windows does on any good hardware. However, certain things are missing, such as the ability to right click. The driver for the trackpad is a generic Microsoft one, so it doesn’t support all the drag, scroll, and right click features, yet. The built-in iSight has no XP driver yet. I expect the final version of Boot Camp will address device issues like that.

I recently cleaned up an old video project that has been awaiting attention for almost a year. It was pretty simple footage and required only a few snips, clips and fades in iMovie to be considered “done.” While waiting for my shiny new iMac Core Duo to render the fades, a memory surfaced.

When using the dual G5 systems to edit video, the system would render fades and transitions in only a second or two. In fact, on long segments where lots of fades and transitions were necessary, think of a Ken Burns movie full of photos, the dual G5 could render them as fast as I could drop them into the pasteboard. It was difficult to “stack” a few renders to keep the dual G5 busy.

Fast forward to yesterday as I waited Continue reading “Intel iMac -vs- dual G5 performance continued.”