similar to: 3ware 9550 series

I have two identical servers. The only difference is that the first one has Maxtor 250G drives and the second one has Seagate 320G drives. OS: CentOS-4.4 (fully patched) CPU: dual Opteron 280 Memory: 16GB Raid card: 3ware 9550Sx-8LP Raid volume: 4-disk Raid 5 with NCQ and Write Cache enabled On the first server I have decent performance. Nothing spectacular, but good enough. The second one

I have two identical servers. The only difference is that the first one has Maxtor 250G drives and the second one has Seagate 320G drives. OS: CentOS-4.4 (fully patched) CPU: dual Opteron 280 Memory: 16GB Raid card: 3ware 9550Sx-8LP Raid volume: 4-disk Raid 5 with NCQ and Write Cache enabled On the first server I have decent performance. Nothing spectacular, but good enough. The second one

I have the latest kernel with the drivers for my 3ware 9550SX built in. Where can I find the tools and monitoring apps for this card? Are there rpms hiding somewhere, or do I need to build it from source? -- Bowie

I'm using CentOS5 64bit on a system with a 3ware 9650SE card. I installed the OS using the driver disk files provided by 3ware. It worked fine with the original CentOS5 kernel. After doing a "yum update", which also installed an updated kernel, the system didn't work after a reboot, using the new kernel. I rebooted the old kernel, moved the 3w-9xxx.ko file from

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

Hi all after being a silent reader for some time and not very successful in getting good performance out of our test set-up, I'm finally getting to the list with questions. Right now, we are operating a web server serving out 4MB files for a distributed computing project. Data is requested from all over the world at a rate of about 650k to 800k downloads a day. Each data file is usually

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,

From a buddy of mine that has spent a little time with the new cards. This was in response to my email asking about his impressions of them: It just came out in mid-September. There are a couple reasons I'm not thrilled with it: 1) no 8-port multilane version (only 12) 2) the 8-port non-multilane version is a kludge, connector-wise (a row of 3 double-stacked connectors along the

I just built up a server running CentOS 4.3, and trying to boot from a 3Ware 9550SX-16ML, 16 port card. This system has 9x500GB drives, AMD Opteron, Tyan K8SD mobo and 1 GB of ram. I downloaded the latest (9.3.0.4) driver from 3Ware, and after a couple of botched attempts, I got CentOS installed. In my two botched attempts, the problem was X hanging during the formatting of the drives, so I

Hi All, I am looking for advice on how to cure a constantly-crashing NFS server which crashes every few hours, or at least, every few days. The kernel log file (below) points toward NFS as a likely cause. The system disk is a 3ware 8000 series RAID1 mirror. The data disk is using a 3Ware 9000 controller to produce two RAID1 devices; these are then striped (RAID0) in software to form a RAID 10

Hello everyone! Working on putting a storage server together and wanted to get some input as to what motherboards have been working for people with the 3ware 9650SE-12ML raid board. This is large, bulk storage, 2-tier stuff. This will not be used for realtime editing of video or something, but a gig nic is almost a given I hope. I have an AMD chip available (AM2 slot) but I can get a new chip

I'm looking to do a bit more monitoring of my 3ware 9550 with smartd, and wanted to see what others were doing with smart for monitoring 3ware hardware. Do you have the smartd.conf configured to test, or simply monitor health status? Are you monitoring the drive as centos sees it (/dev/sdX) or are you using the 3ware /dev/twaX for monitoring? Opinions and discussions are welcome :-P --

Folks- I have had a machine dropped in my lap that I am trying to get CentOS 4.1 to run on as a first pass (the hope is for it to eventually run Rocks -- http://www.rocksclusters.org , which uses CentOS 4.x as its underlying OS). The machine has 2 Opteron 250DP (2.4GHz) with 4 GB of RAM. It is using a Tyan Thunder K8WE (S2895A2NRF) motherboard with an nVidia nForce chipset --

I had posted a question recently on this list regarding the new series of cards from 3ware, and wanted to follow up with some real-world results. My test motherboard was an Intel D945GTPLKR (a desktop board). I was able to use the motherboard video and plug the 3ware card into the PCIe x16 slot. The card I was testing with (16ML) is a PCIe x8 card. Hardware-wise, everything worked without

I know there are a few 3Ware fans here and I was hoping to find some help. I just built a new server using a 3Ware 9550SX-4LP with four disks in raid 5. The array is fully initialized but I'm not getting the write performance I was hoping for -- only 40 to 45MB/Sec. 3Ware's site advertises 300MB/Sec writes using 8 disks on the PCI Express version of this card (the 9580 I think.)

Hi everyone. I am running Samba 3.2.0-22.1 (as packaged by OpenSUSE in 11.0) on a storage server connected to multiple windows based clients over a gigabit ethernet link. The server is a quad core Intel CPU and is equipped with an Intel e1000 based gigabit ethernet controller and plugged into a common gigabit ethernet switch with the windows clients. I am seeing performance issues on transfers

I tried updating the BIOS on my K8WE (S2895) yesterday to 1.03, but after the update, FreeBSD (RELENG_6 dated March 26) would randomly freeze after booting. As I was updating from v1.01, I suspect it may be the updates to the nVidia SATA firmware that caused the issue, as things generally froze shortly after the background fsck processed kicked in (with, obviously, the exception of the first

Hi All, I am looking at ZFS and I get that they call it RAIDZ which is similar to RAID 5, but what about RAID 10? Isn''t a RAID 10 setup better for data protection? So if I have 8 x 1.5tb drives, wouldn''t I: - mirror drive 1 and 5 - mirror drive 2 and 6 - mirror drive 3 and 7 - mirror drive 4 and 8 Then stripe 1,2,3,4 Then stripe 5,6,7,8 How does one do this with ZFS?

Hi, I do have a disk array that is providing striped LUNs to my Solaris box. Hence I''d like to simply concat those LUNs without adding another layer of striping. Is this possibile with ZFS? As far as I understood, if I use zpool create myPool lun-1 lun-2 ... lun-n I will get a RAID0 striping where each data block is split across all "n" LUNs. If that''s

Hello, I know that this card has support in FreeBSD but I'm curious if anyone has used them under heavy load in a RAID-5 configuration. We're thinking of equipping two of these cards with 8 120GB Hitachi drives and run it in an RAID-5 array for video material. The usual data streams will likely be 2-3 streams at about 5-20MB/s (totally) and I know that a single drive will handle that,