A Couple Pics

A Couple Pics

I took this photo yesterday looking down above Jamestown. I took it with the HDR mode of my iPhone, and you can clearly see I did not keep the camera steady. Still, I think it’s a cool picture, and the ghosting on the ridges is kind of interesting.

AboveJamestown

I’ve decided to modify how we back up our lappies at home. Instead of using SuperDuper! to back them up to individual external drives, I’m now backing them up to the Drobo using the sparsebundle backup mode of SuperDuper! over the network. This actually effectively doubles the number of backups for each lappy, but centralizes them for efficiency. As you can see below, I’ve brought the hard drives to school, where I’ve turned them into a striped RAID 500GB array. Making them striped (as opposed to concatenated JBOD) increases the IO speed by roughly 30% over the standard case. Copying a 3.5GB file to any of them individually (or together in JBOD mode) takes about 120 seconds, but as a striped RAID it takes 80 seconds. 500GB isn’t big by today’s standards, a 2TB disk costs less than $100, but I already had these disks, so it’s effectively free. So, why not?

mRAID

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