similar to: Re: Hardware RAID Controller -- not a "bug"

[ Yes, SP^M'n the list with follow-ups to myself ;-] From: Bryan J. Smith > If you are building a new system with such storage requirements, > I would really push you towards a 3Ware Escalade 8006-2 or 8506-4. When cost is supreme, then just a Escalade 7006-2 or 8006-2 with (2) [P]ATA or [S]ATA drives is what you want. It only adds ~$125 to system cost. When you want to minimize

I run a decent amount of 3ware hardware, all under centos-4. There seems to be some sort of fundamental disagreement between ext3 and 3ware's hardware RAID5 mode that trashes write performance. As a representative example, one current setup is 2 9550SX-12 boards in hardware RAID5 mode (256KB stripe size) with a software RAID0 stripe on top (also 256KB chunks). bonnie++ results look

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings folks, I'm currently redoing my home server as one of the hard drives in my RAID-1 array went down and I'm going to replace the lot of it with a 3Ware Escalade 9500S RAID capable card and four Seagate 200GB SATA drives. These drives are supposedly the coolest and quietest SATA drives available (better than the Maxtors I had anyway)

greetings, the subject says it all right? ;-> naw...... is the 3ware Escalade 9500S series mature enough yet for CentOS? - rh -- Robert Hanson Abba Communications http://www.abbacomm.net

From: Harald Finn?s > You seem to know what you're talking about, Seems v. Knows is a whole new ballgame. But I have been deploying SCSI on Linux since 1993 (Advansys, now owned by LSI, was the first vendor to formally support Linux), SCSI RAID on Linux since 1997 (large ICP-Vortex), through 3Ware's original FPGA ASIC designs in the AccelATA and Escalade 5000 series in 1999+. For a

Since good server designs have come up in the past, I wanted to point out a "low-cost" server option that has good I/O, and the vendor offers _your_choice_ of not only Fedora Core or Red Hat Enterprise Linux, but _also_ CentOS _shipped_ with it! IN-A-NUTSHELL ... Starting at just over $750, you can get a single Socket-939 Opteron 1xx (dual-core is an option) system with up to 4GiB of

Is anyone using RAID6 in production? In moving from hardware RAID on my dual 3ware 7500-8 based systems to md, I decided I'd like to go with RAID6 (since md is less tolerant of marginal drives than is 3ware). I did some benchmarking and was getting decent speeds with a 128KiB chunksize. So the next step was failure testing. First, I fired off memtest.sh as found at

On Tue, 22 Nov 2005 11:29:00 -0500 (EST), Joshua Baker-LePain <jlb17 at duke.edu> wrote: > I'm sorry, but making decisions based on Stupid User Tricks is about > the worst policy I can imagine. That way lies madness. No, where lies madness is in the self-centred way in which some people make demands of others to alter innocuous behaviour so that the data requirements of

I'm currently looking at hardware specs for a samba server, its' job will be to hold general office files, cad / solidworks files along with approximately 40 outlook PST files that will be opened off the server. Here are the current specs I'm looking at.. AMD 2600XP Asus A7N8X Deluxe nVidia Serial ATA 2 x 512 MB PC2700 DDR 333 = 1024MB ASUS S520/Generic 52X CD-ROM (OEM) ASUS GrForce4

From: Mike Kercher <mike at CamaroSS.net> > I'm about to deploy a new server for hosting sites and email for a > number of small individuals using a CentOS 4 box. I've been looking > for a recommended installation guide for RHEL4/CentOS4 giving > recommended disk partitioning I have personal recommendations I follow. One thing I really try to do is make 2-3

I'm trying to setup a simple NFSv4 mount between two x86_64 hosts. On the server, I have this in /etc/exports: /export $CLIENT(ro,fsid=0) /export/qb3 $CLIENT(rw,nohide) ON $CLIENT, I mount via: mount -t nfs4 $SERVER:/qb3 /usr/local/sge62/qb3 However: $ touch /usr/local/sge62/qb3/foo touch: cannot touch `/usr/local/sge62/qb3/foo': Read-only file system I'd really

Hi, I've noticed this type of issue has been raised a few times, but I haven't been able to find a solution yet. I'm having transfer performance issues from various clients to my new file server : Server config is : Athlon 3200+ on Nforce 2 Yukon Gb NIC Gentoo with 2.6.9 samba 3.0.7-r1 ebuild 3Ware Escalade 9500S-12 x 2 Clients are XP SP2,2K3 on similar hardware and

I've been having no end of issues with a 3ware 9650SE-24M8 in a server that's coming on a year old. I've got 24 WDC WD5001ABYS drives (500GB) hooked to it, running as a single RAID6 w/ a hot spare. These issues boil down to the card periodically throwing errors like the following: sd 1:0:0:0: WARNING: (0x06:0x002C): Command (0x8a) timed out, resetting card. Usually when this

Hi! I know this is a little bit offtopic, but i couldn't think of any other place where i can get uninfluenced first hand information on these controllers :) I've read about and experienced data loss/system lockup with older 3ware controllers, but the 3ware Escalade 7xxx (i'm especially interested in the 7850) sounds too good to ignore it (8 channels, 8 drives, raid 0/1/5/10,

Hi Everyone, Has anyone had any experience of using the Promise FastTrak SX4000 or SuperTrak SX6000 IDE RAID Controllers under Centos (if it matters I'm using version 4). I've seen it listed on linuxcompatible.org as working but would prefer to find out any first-hand experince before I buy. I'm looking to build a new mini server based on Mini-ITX and have found a great 1U case

Hi all, after an uprade to new kernel 2.4.21-15.0.4.EL on my server appears a lot of these messages: EXT3-fs error (device sd(8,17)): ext3_free_blocks: bit already cleared for block 19268224 EXT3-fs error (device sd(8,17)): ext3_free_blocks: bit already cleared for block 19268225 EXT3-fs error (device sd(8,17)): ext3_free_blocks: bit already cleared for block 19268226 I try to rebuild array but

I've got an i386 server running centos 4.2 with 3 3ware controllers in it -- an 8006-2 for the system disks and 2 7500-8s. On the 7500s, I'm running an all software RAID50. This morning I came in to find the system hung. Turns out a disk went overnight on one of the 7500s, and rather than a graceful failover I got this: Jan 6 01:03:58 $SERVER kernel: 3w-xxxx: scsi2: Command

Hi everyone, I'm looking into setting up a SATA hardware raid, probably 5 to use with CentOS 4. I chose hardware raid over software mostly because I like the fact that the raid is transparent to the OS. Does anyone know of any SATA controllers that are well tested for this sort of usage? From what I can tell from googling, this is more or less where RHEL stands: Red Hat Enterprise Linux

Hi, I've recently benchmarked btrfs v0.11 & v0.12 against ext2, ext3, ext4, jfs, reiserfs and xfs. OS: Ubuntu Hardy Kernel: 2.6.24(-5-server) Hardware: --------- Fu-Si Primergy RX330 S1 * AMD Opteron 2210 1.8 GHz * 1 GB RAM * 3 x 73 GB, 3Gb/s, hot plug, 10k rpm, 3.5" SAS HDD * LSI RAID 128 MB Fu-Si Econel 200 * Intel Xeon 5110 * 512 MB RAM

Hello everybody. I have a problem setting up gluster failover funcionality. Based on manual i setup ucarp which is working well ( tested with ping/ssh etc ) But when i use virtual address for gluster volume mount and i turn off one of nodes machine/gluster will freeze until node is back online. My virtual ip is 3.200 and machine real ip is 3.233 and 3.5. In gluster log i can see: [2011-06-06