On Feb 6, 2010, at 11:30 PM, Christo Kutrovsky wrote:

> Eric, thanks for clarifying.
> 
> Could you confirm the release for #1 ? As "today" can be misleading depending 
> on the user.

A long time (snv_96/s10u8).

> Is there a schedule/target for #2 ?

No.

> And just to confirm the alternative to turn off the ZIL globally is the 
> equivalent to always throwing away some commited data on a crash/reboot (as 
> if your dedicated ZIL went bad every time)?

If by "turn off the ZIL" you mean to tweak the private kernel tunables to 
disable it, yes.  There is no supported way to turn off the ZIL.  If you don't 
have a log device or your log device fails, then the main pool devices are used.

> I've seen enhancement requests to make ZIL control per data set/zvol is this 
> been worked on? Is there a bug number to follow?

There already is (as of snv_122/s10u9) the ability to change the 'logbias' 
property.  This allows you to turn off slogs for arbitrary datasets.  There is 
no way to turn off the ZIL per dataset, nor are there any plans to allow this.

- Eric

> 
> Thanks again for your reply.
> -- 
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--
Eric Schrock, Fishworks                        http://blogs.sun.com/eschrock



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