Re: [CentOS] Infrastructure HELP!

2009-10-30 Thread Karanbir Singh
On 10/30/2009 10:49 AM, ML wrote: >> Also, lets keep the soliciting for business off this list please. > > Didn't you just contradict yourself? > > How can we support companies that contribute and help the project if > we don't know what each others companies do and specialize in? No, not really.

Re: [CentOS] Infrastructure HELP!

2009-10-30 Thread ML
Karan, >> Also, when you move to a hosted solution, I would appreciate >> your considering my company for it. > > I would highly recommend people consider companies that contribute and > help with the project rather than those that dont. > > Also, lets keep the soliciting for business off this lis

Re: [CentOS] Infrastructure HELP!

2009-10-30 Thread Karanbir Singh
On 10/29/2009 06:11 PM, Neil Aggarwal wrote: > Also, when you move to a hosted solution, I would appreciate > your considering my company for it. I would highly recommend people consider companies that contribute and help with the project rather than those that dont. Also, lets keep the soliciti

Re: [CentOS] Infrastructure HELP!

2009-10-30 Thread Karanbir Singh
On 10/29/2009 05:59 PM, Neil Aggarwal wrote: > > If you want speed, use RAID 10. > Neil, you have been on the list long enough to know howto use it and work with the other people on the list, so keeping that in mind - dont top post. most of the stuff coming from you just breaks the thread. - K

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Ryan Wagoner
Looks like the price has gone up with the economy starting to recover. I paid $68 per WD RE3 500GB drive on Amazon.com back in June. I would still recommend going with 4 drives in RAID 10 over 2 in RAID 1 or even 3 drives in RAID 5. You will get almost double the performance due to being able to s

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread John R Pierce
Craig White wrote: > there actually are server and consumer grade SATA drives and you should > be very careful about what you are buying. > an important consideration is error handling.cheap consumer SATA drives tend to delay error reporting as long as they physically can, doing many retri

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Rainer Duffner
Am 29.10.2009 um 21:50 schrieb Curt Mills: > On Thu, 29 Oct 2009, Matt wrote: > >> What is the cheapest SATA hardware raid card I can get at newegg.com? >> Seems like most turn out not to be true hardware raid that I have >> found and will not run on CentOS 4.8 without a great deal of grief. > >

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Craig White
On Fri, 2009-10-30 at 09:57 +1300, Clint Dilks wrote: > > Curt Mills wrote: > > On Thu, 29 Oct 2009, Matt wrote: > > > > > >> What is the cheapest SATA hardware raid card I can get at newegg.com? > >> Seems like most turn out not to be true hardware raid that I have > >> found and will not run

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
> Not a direct answer to your question, but be careful of SATA drives. Seagate does make enterprise SATA drives. -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Clint Dilks
Curt Mills wrote: > On Thu, 29 Oct 2009, Matt wrote: > > >> What is the cheapest SATA hardware raid card I can get at newegg.com? >> Seems like most turn out not to be true hardware raid that I have >> found and will not run on CentOS 4.8 without a great deal of grief. >> > > Not a direct

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Curt Mills
On Thu, 29 Oct 2009, Matt wrote: > What is the cheapest SATA hardware raid card I can get at newegg.com? > Seems like most turn out not to be true hardware raid that I have > found and will not run on CentOS 4.8 without a great deal of grief. Not a direct answer to your question, but be careful o

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
age- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Matt > Sent: Thursday, October 29, 2009 3:44 PM > To: CentOS mailing list > Subject: Re: [CentOS] Infrastructure HELP! > > > $700, eesh.  You can get some nice Areca cards for much > le

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Matt
> $700, eesh.  You can get some nice Areca cards for much less than that. What is the cheapest SATA hardware raid card I can get at newegg.com? Seems like most turn out not to be true hardware raid that I have found and will not run on CentOS 4.8 without a great deal of grief. Matt __

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
> Is software RAID 10 decent performance? Given that you are just starting out, go with SW raid10. When your usage grows, plan to move to hardware raid or a hosted solution. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract,

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread John R Pierce
> Is software RAID 10 decent performance? > depends on the workload. committed random writes are greatly accelerated by battery backed write caches on real raid controllers.this greatly speeds up things like transactional databases. if your workload is mostly read, software raid perfor

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread ML
Ryan, > If you want performance stick with RAID 10. In general the more drives > (spindles) the faster the array. The Western Digital RE3 500 GB drives > are a good deal. You should be able to get 4 of those in the low > $200s. In RAID 10 this would give you better performance than 2 x 1TB > in RA

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Ray Van Dolson
On Thu, Oct 29, 2009 at 02:07:22PM -0500, Neil Aggarwal wrote: > > If I can find a cheap enough RAID Card that wil fit the Mac Pro, I > > would do hardware RAID, but Apple wants $699 for theirs... > > $699 is pretty steep, but RAID cards are not cheap. > They are worth it for performance though.

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
> If I can find a cheap enough RAID Card that wil fit the Mac Pro, I > would do hardware RAID, but Apple wants $699 for theirs... $699 is pretty steep, but RAID cards are not cheap. They are worth it for performance though. If you don't need absolute performance, software RAID will work. Giv

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Ryan Wagoner
If you want performance stick with RAID 10. In general the more drives (spindles) the faster the array. The Western Digital RE3 500 GB drives are a good deal. You should be able to get 4 of those in the low $200s. In RAID 10 this would give you better performance than 2 x 1TB in RAID 1. Ryan On T

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread ML
>> Would 2 x 1TB enterprise drives be enough mirrored? > > Are you going to to software RAID1 or hardware? > > I find software RAID1 bogs down for intensive database > applications. If I can find a cheap enough RAID Card that wil fit the Mac Pro, I would do hardware RAID, but Apple wants $699 f

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
> Would 2 x 1TB enterprise drives be enough mirrored? Are you going to to software RAID1 or hardware? I find software RAID1 bogs down for intensive database applications. NOTE: Host based RAID is the same as software RAID. You will need an actual external RAID card like one from Areca.

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Rainer Duffner
ML schrieb: > Hi Everyone, > > I want to be sure the data is protected, but machine resources and > money are limited. > Why don't you rent a VPS for the time being and rsync the file+data to your MacPro, where you can use TimeMachine to create further backups? Rainer

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread ML
On Oct 29, 2009, at 11:11 AM, Neil Aggarwal wrote: > RAID 10 is striping across mirrored drives. > > So, if you have 4 x 1TB drives, think of it as two separate > 1 TB volumes. The system will write half your data to > volume A and the other half to volume B. The data in volume > A and B do not

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Corey Chandler
Curt Mills wrote: > On Thu, 29 Oct 2009, ML wrote: > > >> My question is about initial setup. The 4 x 1TB drives. How to set >> this up for I have some protection? >> >> RAID 0+1? (striped + mirrored) I would end up with 2TB useable space. >> >> RAID 5? so what one is a hot spare? 3TB useable sp

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Curt Mills
On Thu, 29 Oct 2009, ML wrote: > My question is about initial setup. The 4 x 1TB drives. How to set > this up for I have some protection? > > RAID 0+1? (striped + mirrored) I would end up with 2TB useable space. > > RAID 5? so what one is a hot spare? 3TB useable space? > > What about striping the

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
s-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of ML > Sent: Thursday, October 29, 2009 1:03 PM > To: CentOS mailing list > Subject: Re: [CentOS] Infrastructure HELP! > > Neil, > Can you explain how RAID 10 would work with 4 x 1tb drives? > > Should I just get

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread ML
Neil, Can you explain how RAID 10 would work with 4 x 1tb drives? Should I just get 2 x 2tb drives and mirror? I probably dont need 4 x 1tb drives to start, maybe even 2 x 2tb. I can't image this growing faster than I can get money to add more equipment, move to Co-Lo, etc. On Oct 29, 2009,

Re: [CentOS] Infrastructure HELP!

2009-10-29 Thread Neil Aggarwal
If you want speed, use RAID 10. Neil -- Neil Aggarwal, (281)846-8957, http://www.JAMMConsulting.com CentOS 5.4 KVM VPS $55/mo, no setup fee, no contract, dedicated 64bit CPU 1GB dedicated RAM, 40GB RAID storage, 500GB/mo premium BW, Zero downtime > -Original Message- > From: ce