Re: Shrinking a zpool?

Kyle McDonald wrote:
> Jacob Ritorto wrote:
>> Is this implemented in OpenSolaris 2008.11?  I'm moving move my 
>> filer's rpool to an ssd mirror to free up bigdisk slots currently 
>> used by the os and need to shrink rpool from 40GB to 15GB. (only 
>> using 2.7GB for the install).
>>
>>   
> Your best bet would be to install the new ssd drives, create a new 
> pool, snapshot the exisitng pool and use ZFS send/recv to migrate the 
> data to the new pool. There are docs around about how install grub and 
> the boot blocks on the new devices also. After that remove (export!, 
> don't destroy yet!)
> the old drives, and reboot to see how it works.
>
> If you have no problems, (and I don't think there's anything technical 
> that would keep this from working,) then you're good. Otherwise put 
> the old pool back in. :)
>
This thread dicusses basically this same thing - he had a problem along 
the way, but Cindy answered it.

> Hi Nawir,
>
> I haven't tested these steps myself, but the error message
> means that you need to set this property:
>
> # zpool set bootfs=rpool/ROOT/BE-name rpool
>
> Cindy
>
> On 08/05/09 03:14, nawir wrote:
> Hi,
>
> I have sol10u7 OS with 73GB HD in c1t0d0.
> I want to clone it to 36GB HD
>
> These steps below is what come in my mind
> STEPS TAKEN
> # zpool create -f altrpool c1t1d0s0
> # zpool set listsnapshots=on rpool
> # SNAPNAME=`date +%Y%m%d`
> # zfs snapshot -r rpool/ROOT@$SNAPNAME
> # zfs list -t snapshot
> # zfs send -R rpool@$SNAPNAME | zfs recv -vFd altrpool
> # installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk 
> /dev/rdsk/c1t1d0s0
> for x86 do
> # installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c1t1d0s0
> # zpool export altrpool
> # init 5
> remove source disk (c1t0d0s0) and move target disk (c1t1d0s0) to slot0
> -insert solaris10 dvd
> ok boot cdrom -s
> # zpool import altrpool rpool
> # init 0
> ok boot disk1
>
> ERROR:
> Rebooting with command: boot disk1
> Boot device: /pci <at> 1c,600000/scsi <at> 2/disk <at> 1,0  File and args:
> no pool_props
> Evaluating:
> The file just loaded does not appear to be executable.
> ok
>
> QUESTIONS:
> 1. what's wrong what my steps
> 2. any better idea
>
> thanks 
 -Kyle

>
>  -Kyle
>
>> thx
>> jake
>>   
>
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