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 so

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: > > > >> > > > >> > > > >> http://www.seag

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: > > >> > > >> > > >> http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_In

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

2006-05-11 Thread Bruce Momjian
Joshua D. Drake wrote: > > >> 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,

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 replace

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

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 > >

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 MTBF

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 hard

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 non

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

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

2006-05-09 Thread Bruce Momjian
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 controller with a > >> battery backup controller. > >> > >> And do

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 hard

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 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 > so

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 >

[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