How Important Is It To Have RAID On A Dedicated Box
Apr 18, 2008
What really are the chances of a drive failure in any given year?
I worked in corporate IT departments for 15 years and had RAID on everything even though I rarely saw a drive failure. Out of hundreds of drives one might fail in any given year.
It does look like some folks here have experienced drive failures on dedicated boxes though, so my dilemma is this: If both cost the same am I better off to have a box with no RAID at a good host like theplanet, or have a box WITH raid with one of the value hosts?
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Mar 24, 2008
Is Motherboard RAID as good as a dedicated PCI-E card? I am guessing a dedicated card is the best option, though costs more.
We are looking at buying a barebones server from Supermicro. It features an onboard RAID controller which supports RAID 0, 1, 5 & 10 - but for some strange reason it will only support RAID 5 if you use Windows. Here is a link to the page detailing the RAID features.
[url]
We are going to be running Linux, CentOS 5.1, so we will only have the choice of RAID 0, 1 or 10. This isn't an issue, as having RAID 10 on 4x SAS (15k) drives will be fine for speed and stability. What is an issue is would this RAID controller be as fast or reliable compared to a dedicated PCI-E card? If it can only use RAID 5 in windows, does that suggest this controller is too reliant on software? It would be a nightmare to suffer downtime and data loss because the controller couldn't hack it during a drive failure, or one day it decided to bugger up the array when rebooting.
So that leads me to looking at this card, this looks very good for what we need. Are adaptec a reliable brand? I've seen it advertised for £200, which is a good price.
[url]
This card features RAID 5 and 6, would RAID 6 be better than RAID 10 for redundancy, or is it too slow to bother with? Also it seems to have a battery module available for it, what does this achieve? Cos surely if the power dies the hard drives and motherboard can't run off this little battery, or does it just help the controller stay alive long enough with some hard drive information in its memory if the power goes out during a rebuild?
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Feb 28, 2008
I am interested as I am sure others are as well in the results. Please also list things you want to see providers that they are missing the boat on now. Please dont mention specific providers and make this a bash session. I think this type of dialoge will benefit all the providers out there.
This was supposed to have a poll but my laptop died before I could post the poll questions
What is most important to you in a dedicated hosting company?
#1 Price
#2 Support
#3 Network
#4 Client User interface
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Aug 24, 2008
Requires a dedicated server in Europe.
Requirements:
1) Processor: Intel Core 2 Duo 2,2 GHz;
2) RAM: 2024 MB DDRAM;
3) Hard Drive: 2x 250 GB SATA (can be smaller);
4) Traffic: At least 1000 GB or unrestricted;
5) Port: 100 Mbit / sec. (ideally 1000 Mbit / sec.);
6) IP-Addresses: 2.
Mandatory conditions:
1) A great date-center;
2) Operational and anglophone support;
3) Ability to establish a panel, for example: ISPmanager.
Recommended requirements:
1) Protection against DDoS-attacks;
2) The ability to administer the server, a company that provides services to lease (regular updates, round-the-clock monitoring, etc.).
The server is designed for the site, which will:
1) Forum;
2) Video and audio materials (up to 20 spots, for up to 10 minutes each), which can be viewed directly on the site using flash-player or download. Clips will not be frequently changed or supplemented;
3) Downloading developed software, up to 0.5 Mb;
4) Download documentation formats: DOC and PDF, up to 2 Mb;
All audio, video and documentation for its own production.
Additional information:
The number of visitors, initially to 10000 per month (probably much less or slightly more, not yet known) The audience will be visitors from the following countries: Ukraine, Russia, Poland, UK, Germany, France, USA and Canada.
Budget:
up to $ 200 a month. But if such amount is not sufficient for the entry requirements, are ready to revise the budget.
Need a really high-quality channel of communication and operational support, etc. Perhaps for these tasks, you recommend other requirements to a server and placing the territory? Check your real council.
Also look in the direction of affordable rental server and utilization of services: Akamai Technologies. If someone has experience working with Akamai, I ask, share their views. Should I use it for such a project?
A lot of information has been revised to servers in Germany, UK and USA. But the single answer, yet to be found.
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Mar 7, 2007
Quote:
Today we are going to conduct a detailed study of RAIDability of contemporary 400GB hard drives on a new level. We will take two "professional" drives from Seagate and Western Digital and four ordinary "desktop" drives for our investigation. The detailed performance analysis and some useful hints on building RAID arrays are in our new detailed article.
[url]
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Oct 29, 2009
support request should be on average 30minute or less, at no time no longer then 1 hour.
raid 1, sata, size does not matter
preferably core2duo
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Apr 23, 2009
When you order a dedicated server, do you opt in for the hardware raid? Why or why not?
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Sep 17, 2009
I could try the Software-RAID 5 of the EQ9 Server of Hetzner.
Does anyone here has experiences, how fast a hardware raid 5 compared against the software-Raid 5 is?
The i7-975 should have enough power to compute the redundnacy on the fly, so there would be a minimal impact on performance. But I have no idea.
I want to run the server under ubuntu 8.04 LTS x64.
On it a vitualisation like VMware the IO-Load could get really high.
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Jan 14, 2008
So I've just got a server with 2xSATA raid 1 (OS, cpanel and everything in here) and 4xSCSI raid 10 (clean).
Which one do you guys think will give the best performance:
1. Move mysql only to 4xSCSI raid 10
2. Move mysql and home folder to 4xSCSI raid 10
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Jul 8, 2007
I am in a somewhat complicated situation... I wanted to order a custom server with hardware 3Ware RAID controller but after over a month of waiting I was told the HW RAID controller, as well as any other 3Ware controller they tried, does not work with the motherboard used in the server from Fujitsu-Siemens and that they simply got a reply from FS that the controller is not certified to work with their motherboard.
So although I'd prefer a HW raid, I am forced to either choose a different webhost or setup a software RAID. The problem is, I haven't done that before and am somewhat moderately...scared
I have read a lot of the info about SW RAID on Linux that I could find through Google but there are some questions unanswered still. So I thought that perhaps some of the more knowledgeable WHT members could help me with this problem...
The server specs will be:
Core2Duo E6600 (2.4Ghz), 2GB RAM, 6-8x* 250GB SATA II HDDs, CentOS 4.4 or SuSe, DirectAdmin
* I prefer 8 HDDs (or actually 9) over 6 but I am not sure if their server chassis can hold that many HDDs, I am awaiting answer from them. They don't have any other drives beside the 250GB ones so I am limited to those.
The preferred SW RAID setup is to have everything in RAID 10, except for the /boot partition which has to be on RAID-1 or no RAID I believe, plus one drive as hot spare (that would be the 9th drive). I am quite sure they will not do the setup for me but will give me access to KVM over IP and a Linux image preinstalled on the first HDD so that I'll have a functional system that needs to be upgraded to RAID-10.
How do I do that? The big problem I see is that LILO or GRUB can't boot from a software RAID-5/10 so I will have to mount the /boot partition elsewhere. It's probably terribly simple...if you have done it before which I have not. I have read some articles on how to setup a RAID-5/10 with mdadm (e.g. [url] ) but they usually do not talk about how to setup the boot partition. Should it be setup as a small sized (100-200MB) RAID-1 partition spread over all of the drives in the otherwise RAID-10 array?
What about swap? Should I create a 4-8GB (I plan to upgrade the server RAM to 4GB in near future) RAID-1 swap partition on each of the disks or swap to a file on the main RAID-10 partitions. The second sounds simpler but what about performance? Is swapping to a file on RAID-10 array a bad idea, performance wise?
Is it possible to grow a RAID-10 array in a way similar to growing a RAID-5 array with mdadm (using two extra drives instead of one of course)? mdadm doesn't actually even mention RAID-10 despite it does support it without having to create RAID-0 on top of RAID-1 pairs if the support is in kernel, from what I know.
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Feb 25, 2009
How often do RAID arrays break? Is it worth having RAID if a servers hard drive goes down? I was thinking it may just be a better option to just have a backup drive mounted to my system and in the even of a system failure just pop in a new hard drive, reload the OS, and then reload all my backups?
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May 20, 2009
I have a new server and it is rather slow during raid 1 recovery after system installed
CPU: Intel Core2Duo E5200 Dual Core, 2.5Ghz, 2MB Cache, 800Mhz FSB
Memory: 4GB DDR RAM
Hard Disk 1: 500GB SATA-2 16MB Cache
Hard Disk 2: 500GB SATA-2 16MB Cache
root@server [~]# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb1[1] sda1[0]
256896 blocks [2/2] [UU]
md1 : active raid1 sdb2[1] sda2[0]
2096384 blocks [2/2] [UU]
md2 : active raid1 sdb4[2] sda4[0]
480608448 blocks [2/1] [U_]
[=======>.............] recovery = 36.7% (176477376/480608448) finish=1437.6min speed=3445K/sec
the sync speed is just 3.4Mb/second and the total hours needs to be more than 40 hours
Also the server load is very high (nobody uses it)
root@server [~]# top
top - 07:00:14 up 16:55, 1 user, load average: 1.88, 1.41, 1.34
Tasks: 120 total, 1 running, 119 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.2%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 4148632k total, 747768k used, 3400864k free, 17508k buffers
Swap: 5421928k total, 0k used, 5421928k free, 569252k cached
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Oct 22, 2009
I am in the process of restructuring the infrastructure on our servers. I am thinking of using either RAID 5 (1 hot spare) vs RAID 10 as my 1U server has 4 HDD tray.
RAID 5 would have better capacity but RAID 10 has better overall performance. Which one do you guys go for a shared hosting server?
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Dec 23, 2008
Is it possible to turn a non raided setup into Linux software raid, while it is live, and if it's the OS drive? Can you even software raid the OS drive remotely? I've been thinking about doing it for the redundancy (and possible slight performance boost for reads, but doing it more for redundancy). I'm using CentOS.
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May 22, 2008
I want to take some data from a raid-disk (taken from a raid-1 sstem). Put it into a new system already, but this system doesn't have any raid.
When viewing "fdisk -l", it said /dev/sdb doesn't contain valid partition. Is there anyway I can mount it now? I am on CentOS 4 box
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Mar 24, 2009
MY server configure our drives with RAID-1.
How can I check it my server configure with 3ware or software raid ?
Also please advise me how can I monitor raid configuration that my raid is working fine or no ?
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Jul 11, 2008
I've been talking to the Planet about trading in my four and a half year old "SuperCeleron" (from the old ServerMatrix days) Celeron 2.4 GHz system for something new. As part of their current promotions, I've configured a system that looks decent:
Xeon 3040, 1 gig of RAM, 2x250GB hard disks, RHEL 5, cPanel+Fantastico, and 10 ips for $162.
Not too bad. I could bump up the ram to 2 gb for, I think, $12 more, which I'm thinking about and wouldn't mind some thoughts on. But, the thing that has me really confused is RAID. I like the idea of doing a RAID 1 setup with those two hard disks. But, the Planet wants $40/month for a RAID controller to do it. I really don't want to go over $200 a month!
Any thoughts on alternative redundancy strategies that might avoid that cost? Software RAID does not seem to be offered by the Planet, unless I can figure out how to do it after installation (is that possible?) Better ideas in general on the server?
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May 23, 2007
Just curious what your thoughts are on performance:
2 SCSI Drives 10k w/RAID 1
or
4 SATA 10k w/RAID 10
Prices are not too different with 4 drives just being a tad more.
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Jun 5, 2007
how well software raid can perform and how it compares to hardware raid. How does software raid actually work and is it worth it?
How should I look at be setting up software raid if I was going to? Would you recommend just to use hardware raid instead?
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Dec 10, 2007
Which do you guys recommend of the following?
4x 73GB 15,000rpm SAS drives in a RAID 10
or
4x 73GB 15,000rpm SAS drives in a RAID 5 w/ online backup
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May 12, 2009
The market is full of VPS providers with different combinations of features.. some offer huge amounts of ram, bandwidth, managed, unmanaged, etc.. The sheer number of choices is dizzying..
My question is, if you had to pick one feature of a VPS plan that was most important to you, what would it be?
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Oct 11, 2009
I live in Turkey. I'm gonna buy a reseller package from Hostgator which is located in Texas. I will mostly make websites in English language for business(affiliate websites) but I decided to make 2 websites in Turkish language for a hobby of mine. Should I buy hosting from a company in Europe or can I still go with Hostgator? I really like Hostgator's package but how much disadvantage would there be in terms of speed? Would people be able to tell by speed whether the server is close or not? Is there a way to test it? All my friends' computers have a speed around 100kb download per second.
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Dec 11, 2008
How important is PCI Compliance to you as a hosting provider? Are you compliant now?
Do you intend to be complaint? Also how many thing that just getting a scan from comodo or another scanner makes you compliant?
As far the rules for PCI-DSS state if you store CC's which all hosting companies do if they are using a billing system, i.e MB, WHMCS etc.. You have to be compliant to a fault for a 37 page document with lots and lots of requirements that most don't do and don't know how to do.
Is it worth it to not make the effort and get compliant or risk losing your merchant account and getting on the TMF list and fined $50k?
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May 5, 2009
I am in the process of finding a host for my website (as I am not very happy with the current one).
My statistics shows that most of my visitors are from Europe and Asia and not much from US.
My question is, should I think of a host in Europe or Asia?
does it actually make a lot of difference where is your host located ?
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Feb 15, 2009
How important is this from a customer standpoint? Assuming ticket response times are under 1 hour, is Live support something that customers really want? I'm considering adding it as a support option, but want to weigh whether or not its worth it.
<<Please setup signature in Member Control Panel>>
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Apr 12, 2009
When I talked with my friends who are into computer stuff, they'd say that it is important that the provider that I am about to host my site with, has good ping response so that my site will load faster.
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Apr 9, 2009
I don't know how some web hosting companies get away with saying they offer 24x7 support but don't. I have come across many companies that all clam the same thing but at the end when it comes down to it they are not there when you need them.
My question is if they have a live chat button on there site and I see there sales team offline, that is an immediate sign they are really not there 24x7. If a person is qualified to manage a server is he/she not qualified to sell a product?
how can a network be monitored if you don't have a staff 24x7?
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Oct 4, 2009
I work for a company that does business mainly in California but we have people all over the country including Boston and NYC. I'm looking for dedicated servers and found good pricing/service in Chicago but worried about response times for my Cali folks. I'm hosting a non public web app that everyone needs to use so the load is low and response times are not super critical.
Will my users experience noticable latency?
Also people that manage the servers may be in Cali as well. Will they find it fustrating to remote into these windows servers and manage them or will it be acceptable or should I find something closer to california?
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Mar 2, 2007
I am based in the UK and ideally I want my server based in the UK too. But the best host I've found so far seems to be American.
If most of my users are from the UK, then I don't want the latency to be too high. Or it so insignificant that I don't need to worry?
I was looking at [url] but if someone knows a similar deal in the UK I'd like to hear about it!
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Jul 25, 2008
I'm receiving this email from the server :
"IMPORTANT: Do not ignore this email.
The hostname (one.icv.ro) resolves to 76.163.193.147. It should resolve to 209.188.81.112. Please be sure to correct /etc/hosts as well as the 'A' entry in zone file for the domain.
Some are all of these problems can be caused by
/etc/resolv.conf being setup incorrectly. Please check this file if you
believe everything else is correct.
You may be able to
automaticly correct this problem by using the ' Add an A entry for your
hostname ' under ' Dns Functions ' in your Web Host Manager"
So everything is working fine ..
I checked the DNS zone and every thing is ok.
but run this on the server :
====================
dig +noall +answer +additional icv.ro NS
icv.ro. 84220 IN NS ns9.ixwebhosting.com.
icv.ro. 84220 IN NS ns10.ixwebhosting.com.
====================
dig +noall +answer +additional icv.ro
icv.ro. 82792 IN A 76.163.193.147
and they are wrong.
strange that the ping is fine.. and is corect ip:
ping icv.ro
PING icv.ro (209.188.81.112) 56(84) bytes of data.
64 bytes from one.icv.ro (209.188.81.112): icmp_seq=1 ttl=64 time=0.060 ms
======================
So my server didn't updated the ns. They are the old ns .. and the new one are
Name Server: ns1.wiredtree.com
Name Server: ns2.wiredtree.com
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Oct 27, 2007
today i was asked if my server support ruby on the rail. The person said that the rail needs at least 256Mb of free RAM to run it. Is it true?
I checked my server memory by using TOP command and saw that it has less than 10MB of free RAM. My question: Where does it go? I got only 30 sites running and mostly are static site and No proxy.
what eats up memory? What ways can i use to free up my memory?
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