[mythtv-users] HELP! I want my mythtv!

[Hika van den Hoven]

Hoi Hika,

Monday, April 14, 2014, 6:05:33 PM, you wrote:

> Hoi Eric,

> Monday, April 14, 2014, 5:15:05 PM, you wrote:

>> On Mon, Apr 14, 2014 at 9:59 AM, Hika van den Hoven <hikavdh at gmail.com> wrote:
>>>> That's the penalty - you "lose" half your space.
>>> No you pay double for the same space! And if you have several drives
>>> running, you're sure to encounter drive loss at some time!
>>> For me, for a workstation, that's acceptable. Not for data I do not
>>> want to lose!

>> For data I don't want to lose, I make backups.  Raid doesn't help
>> protect you against many forms of data loss and can't replace a
>> sensible backup policy.

>> That said, TV recordings do not rise to the level of "data I do not
>> want to lose" compared with the cost of paying significantly more for
>> storage hardware (double for raid 1, or somewhat less for raid 5) and
>> additional administration complexity.  If I lose some shows, so be it.
>>  Most stuff will be rebroadcast soon enough, or can be legally
>> acquired through other means for less than the cost of doubling the
>> storage array.

>> Eric

> True, it is always a risk versus cost analysis (both cost in money and
> in time).
> That said it isn't just the data and raid doesn't say you shouldn't
> backup important data. It is the first line. But backup media also
> cost and the recovery time with raid, is in effect immediately. If
> your system drive is affected rebuilding/restoring from backup takes
> much longer, 2 days up to a week, while your system can't record.
> Unless of cause you can promote a SBE to (temporarily) master and you
> only have to restore the database.

At the risk of becoming to philosophical, everything including speed
is relative. Removing a bottleneck will introduce another one. To many
drives and it will be your controller, more controllers and it will be
your systembus or even your processing power, limiting other
processes.
If it suffices, it suffices, although you should be aware of the
bottleneck.
On the other hand running at peek performance reduces the lifecycle,
but top of the line parts are more prone to (not yet) discovered
design flaws or bad system integration.

That said I am more troubled by increased system instability since I
added mythbackend to my server. If I have the hardware I might move it
to a dedicated system. Or better said, move the server parts.

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

De lerende Mens