Archives for Zfs - Page 2
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 dynamics are totally different from many parts of the other ...
Antes tarde do que nunca... é um ditado bem popular. Tenho alguns projetos pessoais como aplicativos de código aberto, e recentemente meu livro sobre ZFS, e estava faltando um canal 'oficial' para tratar destes assuntos com os usuários destes projetos, e possivelmente desenvolvedores que queiram participar também.
Com o ...
Sometime ago i did write about cache, and the little (or none) difference between poor performance and availability.
I still think cache is the solution for all problems, and can be the root of all evil too.
Today i was reading about the problems with 37signals campfire service, and ...
Hello there...
As many of you already know, a new version of Solaris Operating System is available: Solaris 11 Express.
Seems like the Solaris 11 will be released next year, but i really don't know if that is the case neither the diff between Solaris 11 Express and Solaris 11. From what ...
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 ...
Maybe if i could understand the Oracle's mind, i could learn how to make money. I think that is the key in this whole Oracle/Sun situation:
Java, Dtrace 1, 2, 3, 4, and ZFS creators did leave the company.
Why someone would buy a technology company, with so many ...
DO NOT TRY IT IN PRODUCTION. USE AT YOUR OWN RISK!
Good news... here you can get a little script to enable, disable, and check the disksort flag on your disks (not persistent after reboot, take a look on my other post to a link for how to do it).
Take ...
DO NOT TRY IT IN PRODUCTION. USE AT YOUR OWN RISK!
In my last post i did write about some issues related with disksort:
1) Performance (Latency)
2) Consistency
In my D Script i'm printing the buf sector when the sd driver receives it. So, without sorting.
That's important because i'm ...
Hello there, this will be a long post... so, i think if you have no time to waste, think again before you go ahead.
And, no. I'm not Morpheus, so i cannot offer you the truth. Actually, i can just offer you my doubts. And no pills, i do ...
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 ...