OpenSolaris as a Storage Platform

'The OpenSolaris Operating System as a storage operating system - everything from file sharing, file systems, volume managers, data services, and etc. Features like: ZFS, NFS, pNFS, Shared QFS, Storage Archive Manager, Honeycomb fixed content management, Availability Suite, iSCSI, etc'. That is our LinkedIn Group, where i think we ...
Continue Reading »

Show at Singapore

There are some circuits that are the great ones, where we can see who is who. In my opinion, like Monaco, Silverstone, SPA, and now Singapore. Senna was master on the first three. Singapore saw: N.E.R.D, Beyoncé, Simple Minds, Lindsay Lohan, and many others... but the great show was ...
Continue Reading »

GREP: Trivia

On the server (OpenSolaris 2009.06)... time /usr/bin/grep XXX /tmp/xxx.txt > /dev/null real    0m0.039s user    0m0.031s sys     0m0.008s time /usr/gnu/bin/grep XXX /tmp/xxx.txt > /dev/null real    1m22.448s user    1m22.364s sys     0m0.027s And... /usr/gnu/bin/grep --version grep (GNU grep) 2.5 Copyright 1988, 1992-1999, 2000, 2001 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY ...
Continue Reading »

BTRFS Internals (part #1)

Just kidding... ;-) This is a really nice article pointed out by Iban Nieto. The comparison with ZFS is (like agent Smith was used to say): Inevitable. Reading the article, seems like Linus Torvalds is already using btrfs, and i do remember this mail from him in the GNU/Linux Kernel mailing ...
Continue Reading »
image-1357
image-1357

IO on demand…

Hello there, in these days where 'cloud' is more important than 'sun' (what a terrible joke ;-), storage seems to be the big problem to solve. It's easy to think about memory on demand, CPU, network, and storage capacity. But that is just one dimension of storage, ...
Continue Reading »

ZIO comment…

Every time i'm studying and trying (really hard) to understand what these hackers write, i meet this: 2037 /* 2038 * ========================================================================== 2039 * Error rank. Error are ranked in the order 0, ENXIO, ECKSUM, EIO, other. 2040 ...
Continue Reading »

ZFS Internals (part #8)

PLEASE BE AWARE THAT ANY INFORMATION YOU MAY FIND HERE MAY BE INACCURATE, AND COULD INCLUDE TECHNICAL INACCURACIES, TYPOGRAPHICAL ERRORS, AND EVEN SPELLING ERRORS. From the MANUAL page: The zdb command is used by support engineers to diagnose failures and gather statistics. Since the ZFS file ...
Continue Reading »

FMA Messages WIKI way…

Almost perfect!! Wow, that was a really, really nice surprise! I do like all the new stuff from Solaris 10/OpenSolaris, and i say that in every opportunity, like now. I did write some posts about FMA, like this one... but one problem about the fmdump messages IMHO, was the fact that ...
Continue Reading »