TuM'Fatig

What to use deduplication for?

2010-11-12 2112 words, 10 minutes
data deduplication
deduplication
nas
nexenta
san
solaris

I recently discover a storage feature named “Data deduplication” also called “Deduplication”. Quoting Wikipedia: In computing, data deduplication is a specialized data compression technique for eliminating coarse-grained redundant data, typically to improve storage utilization. In the deduplication process, duplicate data is deleted, leaving only one copy of the data to be stored, along with references to the unique copy of data. Deduplication is able to reduce the required storage capacity since only the unique data is stored. I was first thinking “well, a video/document/… is a file ; and a file is a sets of 0 and/or 1. Like a ZIP archive doesn’t care if it stores pictures or text files, I may be able to use deduplication to store my 32GB of personnal pictures into a smaller storage size… sounds great!”. That’s what I want to figure out.

Toshiba MK1059 GSM in MacBookPro5,5

2010-11-08 407 words, 2 minutes
disk
macbook
macbook pro
memory
osx
ram
sata
ssd
toshiba

I had issues with my Seagate Momentus 5400.6 500GB… It felt very slow… But it also only had 10% free space left… It’s been two weeks I’m trying to work on this… Defragmentation, Onyx on the system… Maybe it’s just to full… Thank my Sanyo HD1010 for that… So let’s go for it… upgrading to 8GB of RAM (from stock 4GB) and to TOSHIBA MK1059GSM 1TB.