Jack Scott's Blog

Recently I found a quite awesome piece of software, and I thought I’d share it with you.

ExpanDrive is basically an SFTP file system driver for Windows. What it does in plain English is turn an SFTP share on a remote computer (say, for instance, my virtual server on the other side of the world) and turn it into a drive letter on my laptop. Like so:

My Computer using ExpandDrive

This is the first piece of software I’ve found that does this, and does it well enough that I can just click on the drive, click on any file inside the drive, and it automatically copies and opens in the appropriate application. Saving inside the application also works. For instance, I had a word document lying around on my server, so I thought I’d test it out. I opened it up just like a normal file, edited it, saved it, and so on, and it just all worked normally.

The only difference from a local drive or a Samba share is the speed at which things happen. There is a noticeable difference (to be expected, it going over several ADSL connections). Opening a text file took about half to one second, saving it about the same.

The people who make this software say that it’s “rediculously simple”. They are very right, it is. Anybody who has used WinSCP would be familiar with that software’s connection screen. ExpanDrive’s is very similar:

ExpanDrive Main Window

One bug I have noticed is that the drive usage is wrong. I know for a fact my vserver doesn’t have 12TB of storage space available (as shown in picture above). I’m actually using about 30% of 12GB, so I’m guessing they just checked total disk space wrong.

The only downside is to this software is cost. It’s $39.95USD for a single license (a license can be used for multiple SFTP shares). While it’s not a huge amount, it’s more than I’d like to pay for something like this (in my mind, this sort of thing is worth about $20USD). I haven’t bought it yet, I’m still using the trial (which lasts for 30 days). But I think I will.

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Upon request, here is some more information on how my file server is coming along. Last week I ordered a a Seagate 1TB HDD (of the latest revision, released a short time ago). It would have been preferable to buy all eight at once, but I lacked the money to buy them all at once, and I need the file server to be up and running.

The choice of brand of hard drives was difficult. Because of differences in platter density (and thus overall size), you can’t mix and match brands. Being the stupidly pedantic person I am, it’s not something I would have done anyway. I first considered Seagate, but the adventures (read: complete data loss) that a few other people at work have had with Seagate 1TB hard drives somewhat put me off. Western Digital was also an option, mostly because they have lower power requirements. This means two things: lower heat (and thus less noise), and a lower overall power requirement. For a server that is going to be on most (if not all) of the time, both these factors are quite important to consider. In the end though, I went with Seagate. I’ve never had any problems with them in my past, and I am hoping that they have fixed their problems with faulty control boards.

Only having one hard drives to begin with means I can’t begin with a RAID 5 array. I currently have my controller set to use my single drive as a JBOD disk. This obviously isn’t optimal, as my RAID controller will have to do an online upgrade of the RAID array. Apparently, this is in the feature set, so I thought I’d take advantage of it. I’ll let you know how it goes. I paid enough for it (Highpoint RocketRaid 2320 for ~$360AUD) that I trust it.

At this stage, it was time to configure my (non-) RAID array, FTP, and Samba. Configuring FTP was fine, the RAID array was tolerable (involved recompiling kernel with a few patches, etc), but Samba was a complete pain in the rear end. In the end, then, I went with Windows Vista Business. I was erring on buying a copy before to use on the server, and problems with Samba and so on just drove me over the edge.

This also allowed me to go back to my original RAID setup. After switching the cables over, I created a RAID 0 (fast stripe) on my JMicron controller for the two 80GB drives. This gives me an extremely fast Vista installation to 160GB of space. After installing the Highpoint management software, I then had my file server up and running, to a degree.

Final configuration involved installing AVG, setting up remote desktop (so I can administer changes from my laptop without having to attach a screen), installing Service Pack 1 for Vista, and disabling a few unnecessary services that slow down network transfer speeds (see this guide). After all that, I now have a decent, centralised place to store all my data. The only complaint is the noise produced by my gigabit switch (of course I had to buy a fan-cooled model).

Pictures coming soon (when I can be bothered finding a working camera).