[ug-bosug] A brief review of Nexenta

Moinak Ghosh Moinak.Ghosh at Sun.COM
Fri Jun 2 22:07:31 PDT 2006


Moinak Ghosh wrote:
> Sriram Narayanan wrote:
>> Hi all:
>>
>> I decided to give Nexenta Live CD a spin. Here are my observations.
>>
>> [...]
>
>   I will try to explain this in layman's terms in the next Bosug meet. 
> For
>   now I can say that this I/O scheduler implements C-LOOK + deadline
>   + I/O coalescing. C-LOOK is a variant of C-SCAN.
   BTW ZFS also includes a deadline based I/O scheduler that reorders and
   merges I/O requests. This has beneficial effects on ZFS performance. The
   algorithm I used is somewhat different and suited for CDROM access.

Regards,
Moinak.




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