[OmniOS-discuss] illumos power management...again...

[Johan Kragsterman]

Hi!

Thanks, Hugh, but that is not one of my concerns. I am not afraid of that the system in any way will mess up my backup/nfs pool, and I am not afraid of thieves currently.

The VERY, VERY important backups I might also replicate to other places, but they are really very small, so no problems to fit them into whatever...

No, I'm more interested in power savings...probably going to measure the electricity difference between when nfs server is running and not running, as well as imported or exported pool.

Best regards from/Med vänliga hälsningar från

Johan Kragsterman

Capvert


-----"OmniOS-discuss" <omnios-discuss-bounces at lists.omniti.com> skrev: -----
Till: omnios-discuss at lists.omniti.com
Från: Hugh McIntyre 
Sänt av: "OmniOS-discuss" 
Datum: 2014-03-01 20:47
Ärende: Re: [OmniOS-discuss] illumos power management...again...

Others have answered the disk power saving part of the question.

But regardless of the power management issues, if your backup disks are 
in the same server as the server disks themselves then your backups are 
not very disaster proof.  What if the home server is stolen or goes 
wrong in ways that destroy the backup as well as live disks?

Maybe this setup is OK for you, since a backup server in the same house 
also carries risks.  But worth considering if this is really for 
valuable backups.

Hugh.



On 2/27/14 11:13 PM, Johan Kragsterman wrote:
> Hi!
>
> I remember a discussion on this theme last year. I've been reading up on that, but that didn't answer my questions.
>
> I'm in the process of building a new main home server, and I would of coarse like it to be energy efficient. I don't use much space normally, so my daily working environment doesn't need much space, which means I can use all SSD's for that.
>
> Though I would like a backup/nfs environment, with more space on spinning disks, and I got two different scenarious to choose from here:
>
> One is building a separate machine for backup/nfs, and only start it when it needs to be started( with wake on LAN).
>
> The other is to have the spinning disks in my main home server, and use illumos power management to take care of powering down the disks when they are not in use.
> This would of coarse be the easiest way, if the power management system is efficient enough.
>
> I don't know if the system can/do power down the disks if the nfs server is active and the shares are mounted? (I don't have any problems with latencies/delays here, since it isn't in regular use)
>
> If so, good!
> If not, I could umount the shares and turn off the nfs server, and export the pool, if that would help spinning down disks...
>
> Someone got any insight and/or suggestions here...?
>
>
>
> Best regards from/Med vänliga hälsningar från
>
> Johan Kragsterman
>
> Capvert
>
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss
>

_______________________________________________
OmniOS-discuss mailing list
OmniOS-discuss at lists.omniti.com
http://lists.omniti.com/mailman/listinfo/omnios-discuss