Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Jim C. Nasby
On Tue, May 09, 2006 at 08:59:55PM -0400, Bruce Momjian wrote: Joshua D. Drake wrote: Vivek Khera wrote: On May 9, 2006, at 11:51 AM, Joshua D. Drake wrote: Sorry that is an extremely misleading statement. SATA RAID is perfectly acceptable if you have a hardware raid

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Joshua D. Drake
You want an in-depth comparison of how a server disk drive is internally better than a desktop drive: http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf BTW, someone (Western Digital?) is now offering SATA drives that carry the same

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Jim C. Nasby
On Thu, May 11, 2006 at 03:38:31PM -0700, Joshua D. Drake wrote: You want an in-depth comparison of how a server disk drive is internally better than a desktop drive: http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf BTW, someone

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Bruce Momjian
Joshua D. Drake wrote: You want an in-depth comparison of how a server disk drive is internally better than a desktop drive: http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf BTW, someone (Western Digital?) is now offering SATA

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Joshua D. Drake
Well western digital and Seagate both carry 5 year warranties. Seagate I believe does on almost all of there products. WD you have to pick the right drive. That's nice, but it seems similar to my Toshiba laptop drive experience --- it breaks, we replace it. I would rather not have to

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Jim C. Nasby
On Thu, May 11, 2006 at 07:20:27PM -0400, Bruce Momjian wrote: Joshua D. Drake wrote: You want an in-depth comparison of how a server disk drive is internally better than a desktop drive:

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Bruce Momjian
Jim C. Nasby wrote: On Thu, May 11, 2006 at 07:20:27PM -0400, Bruce Momjian wrote: Joshua D. Drake wrote: You want an in-depth comparison of how a server disk drive is internally better than a desktop drive:

Re: [GENERAL] [PERFORM] Arguments Pro/Contra Software Raid

2006-05-11 Thread Joshua D. Drake
Hmm... I should figure out how to have OS X email me daily log updates like FreeBSD does... Logwatch. -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-10 Thread Florian Weimer
* Hannes Dorbath: + Hardware Raids might be a bit easier to manage, if you never spend a few hours to learn Software Raid Tools. I disagree. RAID management is complicated, and once there is a disk failure, all kinds of oddities can occur which can make it quite a challenge to get back a

[PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread Hannes Dorbath
Hi, I've just had some discussion with colleagues regarding the usage of hardware or software raid 1/10 for our linux based database servers. I myself can't see much reason to spend $500 on high end controller cards for a simple Raid 1. Any arguments pro or contra would be desirable. From

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread Grega Bremec
-BEGIN PGP SIGNED MESSAGE- Hash: RIPEMD160 Hannes Dorbath wrote: Hi, I've just had some discussion with colleagues regarding the usage of hardware or software raid 1/10 for our linux based database servers. I myself can't see much reason to spend $500 on high end controller cards

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread Bruno Wolff III
On Tue, May 09, 2006 at 12:10:32 +0200, Jean-Yves F. Barbier [EMAIL PROTECTED] wrote: Naa, you can find ATA | SATA ctrlrs for about EUR30 ! But those are the ones that you would generally be better off not using. Definitely NOT, however if your server doen't have a heavy load, the software

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread Vivek Khera
On May 9, 2006, at 11:51 AM, Joshua D. Drake wrote: Sorry that is an extremely misleading statement. SATA RAID is perfectly acceptable if you have a hardware raid controller with a battery backup controller. And dollar for dollar, SCSI will NOT be faster nor have the hard drive capacity

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread Joshua D. Drake
Vivek Khera wrote: On May 9, 2006, at 11:51 AM, Joshua D. Drake wrote: Sorry that is an extremely misleading statement. SATA RAID is perfectly acceptable if you have a hardware raid controller with a battery backup controller. And dollar for dollar, SCSI will NOT be faster nor have the

Re: [PERFORM] Arguments Pro/Contra Software Raid

2006-05-09 Thread William Yu
William Yu wrote: We upgraded our disk system for our main data processing server earlier this year. After pricing out all the components, basically we had the choice of: LSI MegaRaid 320-2 w/ 1GB RAM+BBU + 8 15K 150GB SCSI or Areca 1124 w/ 1GB RAM+BBU + 24 7200RPM 250GB SATA My mistake