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which kind of disk for a light system?
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hujuice
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PostPosted: Sun Feb 19, 2012 9:01 pm    Post subject: which kind of disk for a light system? Reply with quote

In front of my sofa, instead of the popular tv, I've a computer aimed to be a so-called "media center".
It is a totally recycled machine, from old parts, except the screen and a little hi-fi amplifier/speaker system.

I've there a very slow and noisy and oversized IDE disk and I could be very happy to find a cheap solution to substitute it.
Consider this:
Code:
$ df -h
File system                  Dim. Usati Dispon. Uso% Montato su
rootfs                       5,1G  289M    4,8G   6% /
/dev/root                    5,1G  289M    4,8G   6% /
rc-svcdir                    1,0M   88K    936K   9% /lib64/rc/init.d
cgroup_root                   10M     0     10M   0% /sys/fs/cgroup
udev                          10M  224K    9,8M   3% /dev
shm                         1005M     0   1005M   0% /dev/shm
/dev/mapper/media-usr1       8,0G  3,8G    4,3G  47% /usr
/dev/mapper/media-var1       1,0G  474M    551M  47% /var
none                         1,0G   94M    931M  10% /var/tmp
none                         512M     0    512M   0% /tmp
/dev/mapper/media-usrlocal1  512M   37M    476M   8% /usr/local
/dev/mapper/media-opt1       1,5G  189M    1,4G  13% /opt
/dev/mapper/media-home1      1,0G  535M    490M  53% /home
/dev/mapper/media-mass        12G   33M     12G   1% /mass
head:/usr/portage             15G   11G    4,6G  70% /usr/portage
head:/archivio               466G  315G    151G  68% /archivio


So, I need 6-8 Gb.

What's the best?
I feel crazy to find or buy a huge SATA disk or an expensive SSD.
I'm oriented to a pocket flash-disk, but I dislike it, because the leaning out (how many *days* before I give it a kick?) and the slow writings.

Does somebody have other ideas?

Regards,
HUjuice
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NeddySeagoon
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PostPosted: Sun Feb 19, 2012 9:08 pm    Post subject: Reply with quote

hujuice,

If you have another Linux system, root over NFS is good.
You put a copy of your HDD into a folder on on anther system and serve the kernel using tftp to the meda centre and mount root and everything else over NFS.
There is no need for a disk at all in the media centre. There is Gentoo diskless howto document.

I run a media server in the garage and a diskless and fanless media player under the TV.
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gorkypl
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PostPosted: Mon Feb 20, 2012 1:14 am    Post subject: Reply with quote

You can consider a 8GB SD/CF card connected through an adapter to IDE interface, just try to tweak the system to avoid unnecessary R/W cycles (minimize swap, mount /tmp in RAM etc).
Also a 2.5" second-hand laptop disk could be a good alternative.
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hujuice
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PostPosted: Mon Feb 20, 2012 10:57 pm    Post subject: Reply with quote

I like both ideas.

But (why I'm so stupid? :lol: ) a diskless solution could be the best.
That's what I want. I light solution, easy to manage.
What's easier than a system where I can have access when the media-center is off?

I will run there.

Thanks a lot!
HUjuice
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NeddySeagoon
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PostPosted: Tue Feb 28, 2012 6:38 pm    Post subject: Reply with quote

hujuice,

As you say, access when the media centre is off is ideal. Unfortunately my host and client have different CPUs, so I need to build on the media centre system.
I can still ssh into it to do that.
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roarinelk
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PostPosted: Tue Feb 28, 2012 7:22 pm    Post subject: Reply with quote

NFSroot is a pain; I suggest you use iscsi instead.

The CF card idea is great: I have a similar kind of system which boots a
very stripped down Gentoo installation off a 4GB CF card, connected via a ide-to-CF adapter.
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NeddySeagoon
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PostPosted: Tue Feb 28, 2012 7:53 pm    Post subject: Reply with quote

roarinelk,

NFS root over nfs version3 just works. Version 4 is proving to be a pain.
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