HAST + ZFS + NFS + CARP

[Julien Cigar]

On Fri, Jul 01, 2016 at 03:44:36PM +0200, InterNetX - Juergen Gotteswinter wrote:
> 
> 
> Am 01.07.2016 um 15:18 schrieb Joe Love:
> > 
> >> On Jul 1, 2016, at 6:09 AM, InterNetX - Juergen Gotteswinter <jg at internetx.com> wrote:
> >>
> >> Am 01.07.2016 um 12:57 schrieb Julien Cigar:
> >>> On Fri, Jul 01, 2016 at 12:18:39PM +0200, InterNetX - Juergen Gotteswinter wrote:
> >>>
> >>> of course I'll test everything properly :) I don't have the hardware yet
> >>> so ATM I'm just looking for all the possible "candidates", and I'm 
> >>> aware that a redundant storage is not that easy to implement ...
> >>>
> >>> but what solutions do we have? It's either CARP + ZFS + (HAST|iSCSI), 
> >>> either zfs send|ssh zfs receive as you suggest (but it's
> >>> not realtime), either a distributed FS (which I avoid like the plague..)
> >>
> >> zfs send/receive can be nearly realtime.
> >>
> >> external jbods with cross cabled sas + commercial cluster solution like
> >> rsf-1. anything else is a fragile construction which begs for desaster.
> > 
> > This sounds similar to the CTL-HA code that went in last year, for which I haven’t seen any sort of how-to.  The RSF-1 stuff sounds like it has more scaling options, though.  Which it probably should, given its commercial operation.
> 
> rsf is what pacemaker / heartbeat tries to be, judge me for linking
> whitepapers but in this case its not such evil marketing blah
> 
> http://www.high-availability.com/wp-content/uploads/2013/01/RSF-1-HA-PLUGIN-ZFS-STORAGE-CLUSTER.pdf
> 
> 
> @ Julien
> 
> seems like you take availability really serious, so i guess you also got
> plans how to accomplish network problems like dead switches, flaky
> cables and so on.
> 
> like using multiple network cards in the boxes, cross cabling between
> the hosts (rs232 and ethernet of course, using proved reliable network
> switches in a stacked configuration for example cisco 3750 stacked). not
> to forget redundant power feeds to redundant power supplies.

the only thing that is not redundant (yet?) is our switch, an HP Pro 
Curve 2530-24G) .. it's the next step :)

> 
> if not, i whould start again from scratch.
> 
> > 
> > -Joe
> > 
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-- 
Julien Cigar
Belgian Biodiversity Platform (http://www.biodiversity.be)
PGP fingerprint: EEF9 F697 4B68 D275 7B11  6A25 B2BB 3710 A204 23C0
No trees were killed in the creation of this message.
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