[OmniOS-discuss] Where to Run Omni

[Doug Hughes]

On 2/3/2014 10:12 AM, Dan Swartzendruber wrote:
>>
>> Hello,
>>
>> I have a few questions about a project that i am trying to work on,
>> needless to say i have 1 80GB SSD Drive that i can fit in this case, the
>> rest of the drives are a RaidZ2 configuration and there cannot be anymore
>> added Disks to this system period!
>>
>> My goal is to make the SSD capable of making NFS run better
>> (Slog/ZIL/L2ARC) whatever... but i need the OS to go somewhere!
>>
>> My Questions are
>>
>> 1) Splitting the SSD into partitions and running is that bad i always
>> heard it was my question is why?
>> 2) Can Omni be run from say a 32GB USB3 key directly?
>> 3) What options do i have here outside of adding a drive.
>>
>> I have SATA Slots on the mobo just no place to add an additional drive!
>

Yes, we do this all the time. The OS image doesn't take that much space. 
Just carve off 8GB partition on your SSD for the ZIL, and you are set. 
It vastly improves NFS synchronous operations such as deletes, metadata 
changes, and small file writes.

What kind of SSD is it? I wouldn't recommend on an X-25M because there's 
no cap to write it out on power failure, but the Intel-320 line is a 
very good choice in general.