[OpenIndiana-discuss] Linux software-raid with two Comstar iSCSI volumes

[Andrej Javoršek]

@Alex Smith: Single target is SPOF (Sigle point of failure)! And sometimes
is necessary to reboot target without bringing down all datacenter.

Regards Andrej


On Fri, Nov 16, 2012 at 4:36 AM, Alex Smith (K4RNT)
<shadowhunter at gmail.com>wrote:

> If the targets are mirrored via ZFS and COMSTAR, why would the Linux host
> require RAID? If it's using iSCSI anyway, wouldn't the Linux volume
> management just needlessly redundantize the data, that ZFS is mirroring
> already?
>
> Or do I not understand your problem, or how ZFS works?
>
> My apologies if I'm talking out of my *EEE-HAW* ! ;)
>
> On Thu, Nov 15, 2012 at 7:25 PM, Christopher Chan <
> christopher.chan at bradbury.edu.hk> wrote:
>
> > On Thursday, November 15, 2012 08:23 PM, Florian wrote:
> >
> >> Am 15.11.2012 13:15, schrieb Jorge Palma:
> >>
> >>> raid1 at the OS level, but SPOF on network level.....
> >>>
> >>
> >> This is no Problem, I change a switch in 5 minutes, but the Server takes
> >> much longer.
> >> This was not my question! Thanks for the not helping help!!!
> >>
> >
> > Wow, you can change a switch in 5 mins? Nice that you have them
> > replacement switches preconfigured and ready to roll. But it would good
> if
> > you did some testing and pull the cable on the network switch out and see
> > what happens to your md device. Nevermind the having a switch ready to
> > replace in 5 minutes but for some reason not used.
> >
> >
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>
>
> --
> " ' With the first link, the chain is forged. The first speech censured,
> the first thought forbidden, the first freedom denied, chains us all
> irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and
> warning... The first time any man's freedom is trodden on we’re all
> damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG
> episode "The Drumhead"
> - Alex Smith (K4RNT)
> - Dulles Technology Corridor (Chantilly/Ashburn/Dulles), Virginia USA
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