[mythtv-users] Disk space for frontend-only machine
Fred Watt
fredwattmythtv at gmail.com
Fri Aug 17 11:54:54 UTC 2012
On 17/08/12 10:14, Michael Watson wrote:
> On 17/08/2012 4:09 PM, Phill Edwards wrote:
>>> You don't happen to have a record of how you set up the iscsi? The
>>> iscsi backend is easy enough, but I think I need to get PXE to boot
>>> gPXE which works with iscsi.
>>> I'm currently netbooting the cd image (pxe + nfs) but its read-only
>>> and a real pain having to reset the timezone and volume every time
>>> (FE is a laptop) - it lowers the WAF considerably.
>> I've never tried setting up a network boot. Isn't it slow to boot? If
>> you have to transfer a few GBs of data for the MythTV frontend image
>> doesn't that take a long time (even over a gigabit network it's going
>> to take some time to transfer all that data)?
>>
> Havent ever timed it, but its boot speed seems faster than it was when
> booting the 500GB SATA drive that use to be in the system.
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users
I use iscsi on al least 3 ubuntu 12.04 pc's ... all run mythfrontend one
is a slave/frontend. From the performance perspective the boot is a
little slower than a 'average h/d', but once booted there is no
noticeable performance loss. It's a great way to centralise all the
virutal disks (for backup/upgrade) and allows for a more robust setup as
the virtual disks use storage on a raid device. This is served from an
atom/ubuntu server which performs many duties including iscsi targer/
myth masterbackend (tunerless, tuners on slave)/mysql/mail server and
others.
I use gpxe served from an 'always on' low powered alix (voyage) box, but
before I had one of these I ran gpxe from usb sticks plugged into each
diskless client (good first step). I also used the gpxe to perform a
WOL to wake the server - if needed - during the boot process.
May a little painful whilst sorting out everything. But now I have
virtual disks for all devices which can also dual boot. I followed
these instructions -
http://etherboot.org/wiki/sanboot/ubuntu_iscsi#installing_ubuntu_directly_onto_the_iscsi_san.
Been running like this for well over 2 years now.
More information about the mythtv-users
mailing list