similar to: benchmarking large RAID arrays

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'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 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.

To the Centos maintainers: We tried to install Centos 4.4 i386 (i686 / Athlon) on a Dual Opteron 254 Iwill DK8N MB, 1GB (4 x 256M) system with a 3ware 9500S-4 and 4 x 80 GB disks in a RAID 10 array. Both tries caused Centos to first kernel panic until we turned off IO-APIC in the BIOS. Both tries also only loaded the UP kernel and did not load the smp kernel on the machine. The smp kernel was

Hi, I''m trying to setup my box as described below: - The Dom0 exports two disks as physical devices to the DomU - DomU use the two devices to assemble a software raid device (/dev/md0) - On the /dev/md0 I create a lvm volume group and lvm volumes on it. Everything seems to work fine if the lvm volumes on the DomU are lightly used. Under heavy load the DomU freeze up immediately. The

I've had the chance to use a testsystem here and couldn't resist running a few benchmark programs on them: bonnie++, tiobench, dbench and a few generic ones (cp/rm/tar/etc...) on ext{234}, btrfs, jfs, ufs, xfs, zfs. All with standard mkfs/mount options and +noatime for all of them. Here are the results, no graphs - sorry: http://nerdbynature.de/benchmarks/v40z/2009-12-22/ Reiserfs

I've had the chance to use a testsystem here and couldn't resist running a few benchmark programs on them: bonnie++, tiobench, dbench and a few generic ones (cp/rm/tar/etc...) on ext{234}, btrfs, jfs, ufs, xfs, zfs. All with standard mkfs/mount options and +noatime for all of them. Here are the results, no graphs - sorry: http://nerdbynature.de/benchmarks/v40z/2009-12-22/ Reiserfs

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

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

We (a small college with about 3000 active accounts) are currently in the process of moving from UW IMAP running on linux to dovecot running on a cluster of 3 or 4 new faster Linux machines. (Initially using perdition to split the load.) As we are building and designing the system, I'm attempting to take (or find) benchmarks everywhere I can in order to make informed decisions and so

Hello list First of all: Good work and thanks for GlusterFS! I'm totally new to GlusterFS, but i like it a lot and think about migrating my NFS setup completely to GlusterFS. But i ran into some problems with my chosen structure. Hopefully someone can help out. The first questions: i ran into some performance issues with a certain structure/setup and like to know (before i continue testing)

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

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 have just purchased an HP ProLiant HP ML110 G5 server and install ed CentOS 5.2 x86_64 on it. It has the following spec: Intel(R) Xeon(R) CPU 3065 @ 2.33GHz 4GB ECC memory 4 x 250GB SATA hard disks running at 1.5GB/s Onboard RAID controller is enabled but at the moment I have used mdadm to configure the array. RAID bus controller: Intel Corporation 82801 SATA RAID Controller For a simple

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,