search for: bevand

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2008 Sep 14
10
ZFS system requirements
Hi, this says that opensolaris only requires 512MB ram: http://dlc.sun.com/osol/docs/content/IPS/sysreq.html This says 1GB ram and a 64bit processor are recommended: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Memory_and_Swap_Space Am I going to have problems if I run opensolaris and zfs at the minimum requirements? -- This message posted from opensolaris.org
2008 Mar 13
12
7-disk raidz achieves 430 MB/s reads and 220 MB/s writes on a $1320 box
I figured the following ZFS ''success story'' may interest some readers here. I was interested to see how much sequential read/write performance it would be possible to obtain from ZFS running on commodity hardware with modern features such as PCI-E busses, SATA disks, well-designed SATA controllers (AHCI, SiI3132/SiI3124). So I made this experiment of building a fileserver by
2004 Mar 12
1
bin/64150: [PATCH] ls(1) coredumps when started via execve(2) with no argv.
On Fri, Mar 12, 2004 at 11:57:30AM +0100, Morten Rodal wrote: > On Fri, Mar 12, 2004 at 12:49:14PM +0200, Ruslan Ermilov wrote: > > On Fri, Mar 12, 2004 at 10:22:00AM +0100, Morten Rodal wrote: > > > >Description: > > > ls(1) calls the fts(3) functions for traversing a file hierarchy. > > > If ls(1) is executed via execve(2) system call with a NULL argv >
2008 Mar 19
2
aclinherit property changes fast track
Here is a draft of the fast track to allow ZFS to inherit mode permission via owner@, group@ and everyone@ -Mark -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: aclinherit.fasttrack URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20080319/42e8ace7/attachment.ksh>
2010 Jun 25
13
OCZ Vertex 2 Pro performance numbers
Now the test for the Vertex 2 Pro. This was fun. For more explanation please see the thread "Crucial RealSSD C300 and cache flush?" This time I made sure the device is attached via 3GBit SATA. This is also only a short test. I''ll retest after some weeks of usage. cache enabled, 32 buffers, 64k blocks linear write, random data: 96 MB/s linear read, random data: 206 MB/s linear
2020 May 22
2
[PATCH] Optimized assembler version of md5_process() for x86-64
...patch introduces an optimized assembler version of md5_process(), the inner loop of MD5 checksumming. It affects the performance of all MD5 operations in rsync - including block matching and whole-file checksums. Performance gain is 5-10% depending on the specific CPU. Originally created by Marc Bevand and placed in the public domain, later integrated into OpenSSL. This is the original version so no need to muck about with OpenSSL license exemptions. It applies on top of my previously submitted 'v3' patch for get_checksum1(), and though this is technically not SIMD it is wrapped by the S...
2005 Feb 17
4
multiple crypto accelerator cards in one FreeBSD box
Hi there! we are thinking of deploying a IPSEC VPN concentrator using multiple PCI bus version VPN1401 cards in a FreeBSD box using hifn support.. From the technical specs in Soekris website http://www.soekris.com/vpn1401.htm, each card can support 24 to 70 connections. The question is if we put 3 VPN1401 cards in a single box, does this mean the FreeBSD box can support 3 x (24 to 70) IPSEC
2007 Jun 17
18
6 disk raidz2 or 3 stripe 2 way mirror
I''m playing around with ZFS and want to figure out the best use of my 6x 300GB SATA drives. The purpose of the drives is to store all of my data at home (video, photos, music, etc). I''m debating between: 6x 300GB disks in a single raidz2 pool --or-- 2x (3x 300GB disks in a pool) mirrored I''ve read up a lot on ZFS, but I can''t really figure out which is
2005 Apr 21
6
Information disclosure?
Hello, For some reason, I thought little about the "clear" command today.. Let's say a privileged user (root) logs on, edit a sensitive file (e.g, a file containing a password, running vipw, etc) .. then runs clear and logout. Then anyone can press the scroll-lock command, scroll back up and read the sensitive information.. Isn't "clear" ment to clear the
2008 Feb 05
31
ZFS Performance Issue
This may not be a ZFS issue, so please bear with me! I have 4 internal drives that I have striped/mirrored with ZFS and have an application server which is reading/writing to hundreds of thousands of files on it, thousands of files @ a time. If 1 client uses the app server, the transaction (reading/writing to ~80 files) takes about 200 ms. If I have about 80 clients attempting it @ once, it can
2007 Oct 24
182
Yager on ZFS
Not sure if it''s been posted yet, my email is currently down... http://weblog.infoworld.com/yager/archives/2007/10/suns_zfs_is_clo.html Interesting piece. This is the second post from Yager that shows solaris in a pretty good light. I particularly like his closing comment: "If you haven''t checked out ZFS yet, do, because it will eventually become ubiquitously implemented