Hi, last year was a busy one, but just because we worked in really cool projects and was very, very exciting!
I should be at Las Vegas from May 05-09, and in Santa Clara from Jun 10-12. In Santa Clara I ...
Marcelo Leal, arquiteto da Locaweb, empresa especializada em web hosting e serviços de cloud computing, comenta a atuação da Itautec, que forneceu uma solução customizada de servidores para a companhia. Esta solução permitiu à empresa dobrar a densidade de armazenamento ...
DNLC is something that did create a lot of discussions on ZFS mailing list, and is one of that parts that ZFS did not changed, and (at least for me) a ghost. Let me try to explain...
ZFS ...
I think there is a misunderstanding regarding the protocols and NFS options while using it over TCP.
As the NFS is an old protocol, and used to UDP, when the implementations did change the default transport to TCP, the features from ...
1 - But limits are things that we need to respect in life;
2 - If you have U$10K and do not know how to handle it, U$10M is not the answer for you. Because one cent is overflow in both ...
That was a simple but nice one... i did see a huge write performance on one of our storages.
Take a look at this slog device (SSD):
r/s w/s kr/s kw/s wait actv ...
In my last post about 'Performance', i did talk about a ZFS tuning parameter: zfs_prefetch_disable. And that was a ZFS read parameter...
In this post, we will take a look in another one, with the same 'water to wine' effect. ...
These days i was working to understand a workload: random, many small files (e.g: web servers), running on NFS/ZFS environment.
Interesting to see that the discs were really busy, a very heavy random workload, but a few NFS reads and writes ...
That was an amazing experience, and was really great meet those people that i just talk by email. First was the OHAC Summit, where we had excellent presentations, and the keynote 'The Network is the Cluster' by Dr. David Cheriton ...
Ok, now i did some 'clean up' on the code... did create some functions, have removed duplicated code, and add new features like 'Requests per second'. Now i think is just fix any bugs that we will find, but the ...