[OpenIndiana-discuss] rpool mirror moving to another ports

[Brogyányi József]

Hi Nikola

"/if first disk fails or get removed, I would expect system to boot 
right away from second device that is on rpool/? "

-*You're right. I tried it*.

"/So if one has mirrored rpool and boot device fails,/..."

-*The system is starting with one rpool device (any of them). Nothing to 
do*. Just you have to change the bad drive and make a working rpool mirror.
If you have enough experience then you use the "hot swap". The service 
is working meanwhile you make a new rpool mirror.
Your server is unstoppable. :)
BR
Brogyi

ps
Jim can explain the whole process on your language. Maybe you did it.


2014.11.04. 14:14 keltezéssel, Nikola M. írta:
> On 11/ 4/14 12:01 PM, Jim Klimov wrote:
>> 4 ноября 2014 г. 7:41:59 CET, "Nikola M." <minikola at gmail.com> пишет:
>>> On 11/ 3/14 07:55 PM, Brogyányi József wrote:
>>>> Hi
>>>> I'd like to add a SSD to my pool but I need to move the rpool mirror.
>>> ZFS does not care at what port disks are pugged in and in what order.
>> Zfs doesn't care. Generally. For rpools, the import routine cares - 
>> it gets the single-device name from grub via kernel arguments to 
>> mount the rootfs and doesn't (initially?) import the pool completely. 
>> Hence all the problem and voodoo about rpool migrations with help of 
>> livecd's, etc.
>>
>> On my laptop it was worse - no CD, and when the USB was plugged in, 
>> "sd" (sata+usb) enumeration was different than without USB. So I had 
>> to stick with IDE/cmdk as it was consistent.
> Huh, there it is:
> http://wiki.openindiana.org/oi/How+to+migrate+the+root+pool
>
> So it is a more of a process then I was expected.
>
> How does it behaves anyway, if one installs on one disk and then adds 
> second HD/SSD as mirror on rpool.,
> if first disk fails or get removed, I would expect system to boot 
> right away from second device that is on rpool?
> So if one has mirrored rpool and boot device fails, it still needs to 
> reroute device 2 in place of device1, to be able to boot from it?
>
>
>
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