[OmniOS-discuss] Pliant/Sandisk SSD ZIL

[Richard Elling]

On Feb 27, 2014, at 2:01 PM, Jim Klimov <jimklimov at cos.ru> wrote:

> On 2014-02-27 20:39, Richard Elling wrote:
>>> I hope, NFS cached-data syncs and locks, and ZFS write-syncs are
>>> not very related in this case (i.e. zfs sync=disabled does not
>>> influence co-ordination of NFS data between hosts), right?
>> 
>> Right. The file system is consistent. The NFS sync is for the case when
>> the server reboots. As long as your server isn't rebooting, everything
>> should be consistent (assuming the clients are configured appropriately)
> 
> And "appropriately" is just how much different from "default"?

It depends on the client. Some people prefer performance over correctness
and default to caching strategies on the client that can make multiclient
sync more difficult.

> I.e. if I set sharenfs on the server dataset, and walk in with
> autofs + nfs/client from the build host, with no special configs
> other than those in solaris 10 or OpenIndiana, is that appropriate?
> Or should some specific stuff be configured on clients and servers?

For Solaris derivatives, check the attribute cache settings, noac, and nocto
in mount_nfs(1m) to see if the defaults suit your needs.
 -- richard