similar to: 3Ware 9500 vs 9550 vs CentOS 4.latest kernel

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'm just wondering what folks are using to benchmark/tune large arrays these days. I've always used bonnie with file sizes 2-3 times physical RAM. Maybe there's a better way? Cheers,

I've gotten roped into helping a local charity with some computing/infrastructure snafus. It seems their last good Samaritan installed Ubuntu all over the place and is "unavailable" now to clean up the mess. CentOS has made me somewhat lazy because everything just works out of the box for the most part and you've got the occasional "yum update". :) These are

I have been trying to install CentOS 4.1 on a new server today. The installation went fine but the system doesn't boot. It doesn't even get to the Grub screen. The system has a 3ware 9500 series controller and 12 250GB SATA disks which are configured for RAID5 with one hot spare. I searched on the web and noticed that this is a Grub (and Lilo) limitation. Is there any way around it other

I was asked this question today and frankly, I didn't know the answer. So I thought I'd post it here.... If you don't need to access greater than 4GB RAM, is there any benefit to running the 64-bit version of CentOS vs the 32-bit one? That's assuming, of course, that the target machine utilizes a 64-bit capable processor. I hadn't seen any noticeable difference, but I

I checked Best Buy again. The second system I recommended is in stock at the Best Buy in Warwick. It's on sale for $353. :) http://www.bestbuy.com/site/olspage.jsp?skuId=8254569&type=product&id=1169512522677 I'm thinking about getting out of Dodge today to unwind so if you pick it up early today I can come up and help you install it and then just come home later in the day.

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

Anyone know of any PCI-e hardware RAID adapters? -- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the LORD, and their righteousness is of me, saith the LORD. -- carpe ductum -- "Grab the tape" CDTT (Certified Duct

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 --

Hi, I posted in the Solaris install forum as well about the fileserver I''m building for media files but wanted to ask more specific questions about zfs here. The setup is 8x500GB SATAII drives to start and down the road another 4x750 SATAII drives, the machine will mostly be doing reads and streaming data over GigaE. -I''m under the impression that ZFS+(ZFS2) is similar to

Just wondering if any 4.2 users out there have a favourite "dumb" PCI controller to add a couple of SATA ports to a motherboard that doesn't include SATA support. I'm not looking for anything fancy, just 2 SATA ports that a recent vintage kernel will recognize without a lot of configuration gymnastics. The intended use is for relatively light weight internet browser

Hi folks, I have just installed a PCI SATA controller based on the SIL3112A chipset into my Centos-3 (latest kernel patches applied) system and moved an existing (not the boot disk) SATA drive from the onboard controller to the SIL-based one so I can setup software RAID with two 300GB drives. Kudzu/Linux found the controller and drives straight away and they've appeared as 'hda' and

Has anyone on the list used one of these w/Linux? We currently use Linux + Cinelerra for editing uncompressed video (and a few dual G5 macs running Final Cut Pro). Current editing stations are getting a bit long in the tooth so I've been mulling over a mass upgrade. 8-) These cards are interesting to me because they are PCI-X and support 4 SATAII drives per multilane/infiniband

I''m still using CentOS 3.3 as our install mechanism, then adding some packages from a tarball of RPMs we need. Then I run # yum update yum which sometimes takes a while. Yesterday it took many hours. I like to run these from behind a firewall in our office before taking the server to the datacenter, but the delay meant a whole day''s delay in our trip to the datacenter

All, I would like to announce our Official CentOS CD/DVD Vendor Program. We currently have 3 vendors, and 2 more who are putting together their information. (Not bad ... the official program has been going for less than 12 hours :) The details of the program (how to get in it, what they give back to the CentOS Project, etc.) are here: http://www.centos.org/images/CentOS_CD_Vendors.pdf Here is

All, I would like to announce our Official CentOS CD/DVD Vendor Program. We currently have 3 vendors, and 2 more who are putting together their information. (Not bad ... the official program has been going for less than 12 hours :) The details of the program (how to get in it, what they give back to the CentOS Project, etc.) are here: http://www.centos.org/images/CentOS_CD_Vendors.pdf Here is

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

Anyone know where I could find this package for Centos 4.4 x86_64? I've googled all over and haven't been able to find anything more current the 0.8.4a. I'm not much of a programmer, but if someone could point me at a "packaging for dummies" perhaps I could have a go at creating a package if one doesn't already exist? Cheers,

Seems like a nice lightweight server platform for non-disk-intensive apps. Cheers,