[OpenIndiana-discuss] The ZFS Pool died when unmirrored CACHE Device is removed ...

[Sašo Kiselkov]

On 01/28/2013 02:36 PM, Sašo Kiselkov wrote:
> On 01/28/2013 02:31 PM, Shvayakov A. wrote:
>> Hi,
>>
>> I created a ZFS Storage Pool with Cache and ZIL Devices on SSD.
>> During the performance test I removed the Cache  Device to simulate failure.
>>
>> Now I can't get an output from the commands "zpool status", "format" etc.
>> This commands hangs.
>> Is this normal?
> 
> No.
> 
>> Sometimes a system reboot is strongly unacceptable
>> How to restore the system from this state without rebooting?
> 
> You'll need to give some more info to diagnose the issue. What do
> "dmesg" and "fmdump -e" say?

Also, what kind of hardware are we talking about? We need to know the
types of buses involved (SATA/SAS/FC), pool topology and port
configurations where applicable.

For example: if you are trying this on your home PC box with SATA ports
in IDE emulation mode, I can tell you right away that hot-plug won't
work. IDE doesn't support that, you'll need to switch your SATA ports
into AHCI mode for that to work.

Cheers,
--
Saso