[mythtv-users] Recommendation for SSD boot drive
dlknight2
dlknight at sdf.lonestar.org
Wed Jan 23 13:32:23 UTC 2013
> I use a USB3 stick on a frontend... 8GB is big enough for a mythbuntu
> install. I have not measured it, but it's fast enough for my
> requirements, and it was the cheapest solid state solution I could
> find.
>
> I was worried about booting from USB3, so instead of trying, I also
> put
> a USB2 stick for /boot on that frontend, no harddisk.
I recently obtained an OCZ Onyx 32GB SATA-2 SSD for £20 (second user).
My existing solution
was 2 x 2.5" 500GB 5400rpm SATA-2 drives with md-raid RAID-1 configured
for root, boot and swap partitions.
I use an LVM stripe volume for my recordings which is split across both
drives.
I have added the SSD to the existing md-raid setup, although I did
stumble across a few issues. My existing partitions
were created quite some time ago so didn't have the luxury of beginning
on the correct/default 1MB boundary. As I am
using GPT and currently Grub I also did not have a BIOS Boot partition.
I had recently upgraded to Fedora 16 and this
shipped with Grub2. So I setup a BIOS Boot partition on the SSD on the
1MB boundary, added the existing RAID partitions
and installed Grub2. I have left Grub installed on the existing
rotating disks for now.
My start-up time is around 25 seconds (systemd --analyze) was
originally approximately 50 seconds, some of this is down
to moving things from rc.local into systemd services however.
I followed several guides for improving SSD performance in Fedora (can
provide links if necessary).
Further improvements I have planned are converting my ext3 partitions
to ext4 to enable TRIM support.
I've also used a USB 2.0 SD reader and high speed 16GB SD card when I
ran out of space compiling the kernel (that is
another story). It was remarkably fast and I did consider it for my
boot / root partition. Also Linux (Fedora)
automatically mounted it for me without any intervention :)
Mythtv Frontend seems a fair bit more responsive on the SSD although I
haven't really noticed any other improvements....
Yet!
Cheers
Dave K. (Long term Mythtv user - since 0.19)
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