Matt Ingenthron wrote:
> Hi all,
>
> Does anyone have any data to show how ZFS raidz with the on-disk cache
> enabled for small, random IOs compares to a raid controller card with
> cache in raid 5.
>
> I'm working on a very competitive RFP, and one thing that could give us
> an advantage is the
For small random I/O operations I would expect a substantial performance
penalty for ZFS. The reason is that RAID-Z is more akin to RAID-3 than RAID-5;
each read and write operation touches all of the drives. RAID-5 allows multiple
I/O operations to proceed in parallel since each read and write
Hi all,
Does anyone have any data to show how ZFS raidz with the on-disk cache
enabled for small, random IOs compares to a raid controller card with
cache in raid 5.
I'm working on a very competitive RFP, and one thing that could give us
an advantage is the ability to remove this controller ca
