Tag archives for Nfs
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 will be presenting one of the solutions we developed last ...
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 one were mixed to the other in some interpretations.
Well, ...
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 wsvc_t asvc_t %w %b device
0.0 10494.5 ...
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. This time with focus on writes...
We have a set ...
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 requests. On top of it, an idle SSD as a ...
Here you can get the new version.
Here the project's page on OpenSolaris OHAC community.
Here the instructions.
peace.
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 features for this particular tool are done.
Take a look:
FEATURES:
...
I need more eyes on the code... ;-)
I did a few more changes, but i'm not a C programmer. I did add two graphs (clean up the screen with curses is boring, thanks for some procedures from iMil and the great wimon software).
With that graphs (Read and Write), we ...
DO NOT TRY IT IN PRODUCTION. USE AT YOUR OWN RISK!
Hello there! Yesterday i was coding a simple tool to provide a better visualization of the block's sizes (read/write) on a NFS server. The primary objective was not consolidate informations, but just quickly visualize trends, for a short period of ...