[OmniOS-discuss] performance extrremely low from nothing !

[Fábio Rabelo]

answering to myself :

The disks in this system are all Western Digital, I may be in this issue :

http://letsgetdugg.com/2009/10/21/zfs-slow-performance-fix/

But the module does not accept this command ( zfs_vdev_max_pending is
not defined )

so, how can solve this issue ??


Fábio Rabelo

2016-05-24 10:10 GMT-03:00 Fábio Rabelo <fabio at fabiorabelo.wiki.br>:
> Hi to all
>
> Got something here, and I have no idea what it can be !
>
> Supermicro motherboard and chassis .
>
> LSI 2008 with IT firmware .
>
> Evething was working fine till yesterday .
>
> 2 years and a half !
>
> Then, the performance goes terrible down .
>
> read/white from 5 to 8 MB/s sinse day one .
>
> Now is is in the Kb  !!!
>
> none of the hard disks shows any error or warning .
>
> smart OK in all .
>
> I cannot find anything wrong, but there are something ...
>
> How can I figure it out ??
>
>
> Fábio Rabelo