Showing posts with the label storage

Pogoplug - an easy NAS from your USB disks

Have a few external USB disks laying around you'd like to make them available to everyone in the house without leaving your computer on all the time? It's easy!

You need a NAS server, instead of abusing your computer as such, and give people rights to share files, place backups, create photo albums and so on. The NAS server manages your existing USB disks and handles access control. Pogoplug has a small cute (Pink! So the wife factor approves too) box for $130 with a 1 GB network port and room for 2 USB disks. It integrates with facebook, twitter and myspace too, so you can easily share photos or music if you like or choose not to. ;) Apple Mac users will also like the ability to backup iTunes and iPhoto libraries and get shared access to them. The whole thing is managed thru your browser. And, of course, Linux works too. The only thing I miss is some form of access control, security or encryption, but the specs don't mention anything. Personally, I'm gonna go with the …

Digitally pimping a home network

While visiting Michiel in Singapore, I pimped their home network a bit. It was fine, but cumbersome and loosely tied together: 5 laptops, PS3, Wii. They have a cable modem, but didn't know their connection speed. WiFi was setup but not used because downloading over a fixed connection into the WiFi router was "going faster". Hehe, I told them their ISP limits the speed and after a bit of testing concluded that their 8 Mb down-link would scarcely fill the 54 Mb/s bandwidth of their 802.11g WiFi network. So no need for the fixed network hook-up not sitting near the router, freedom to sit around the house wherever they wanted to. I moved the Linksys WRT54G into a nook, out of the way, receiving thousands of thank-yous from the housekeeper who hated the nasty blue box on the floor in the livingroom. ;)

I then tied the PS3 and Wii to the WiFi network. This meant all devices were now on the same subnet. I installed PS3 media server on Molina's Vista Acer laptop. (It's fr…

ZFS gets inline deduplication

One of the file systems out there, IMHO, is ZFS by Sun for Solaris. Sadly, they can't open source it easily because there are portions that can't be licensed under the GPL license. And if they take them out, there isn't much left of the strength of ZFS. Oh well...

Anyway, ZFS gets inline deduplication! This means, that ZFS can decide -on the fly- if a data block was already written by another process at another time and know where that was. It then merely needs to store a pointer to that particular block elsewhere on the disk (an inode) and it's done.
Expensive data center storage solutions such as NetApp and EMC use this technology too, but these boxes cost $100,000+. ZFS is the file system that you use when you format your disks! Any disks! :)

Engadget: Apple dictated Light Peak creation

What I thought to be an R&D project from Intel could very well a deliberate move into a new technology from Apple. Engadget may have dictated Intel to create this new technology and could begin using it as early as 2010!

El cheapo RAID with ZFS

CSI: Munich, an integrator from Germany, posted a video on YouTube about building an el cheapo disk array using ZFS. They actually use USB disks instead of real disks, to make it even cheaper. Oh and this won't work in Windows, of course: you can't change the %$@&% file system in Windows (NTFS/FAT only). :P
ZFS is a radically new file system developed for Solaris.

The Anatomy of LVM

Well... I seem to have my Tower of Power setup now... pffew!
It's very exciting. I'm a little hesitant still, dunno for sure it works as advertized as I - we - haven't used it extensively yet. But I now have my server setup as file server with NFS and SAMBA (for Windows file sharing).
I have 4 hard disks: one old Quantum 8 GB ATA33 disk used as boot and root drive (for Debian). Then I have 3 identical Hitachi 250GB ATA100 disks for storage. I divided my boot drive into:
- 512 MB swap /dev/hda1
- 2048 MB reiserfs /dev/hda2 as /home
- 6000 MB reiserfs /dev/hda3 as /
Should my hard disk crash and wipe data, it'll be the partition table and/or the swap file. Both of these, I can recover easily. I've formatted the 3 big drives as LVM2. In Linux you set them to type 0x8e, then it won't ask you anymore questions. :) I then installed Webmin, as I want to remotely admin the server and not *have* use ssh nor the command line. Once I had Webmin installed and configured (this t…