Advantages Of RAID 1

Nov 22, 2007

1) I have been wondering what is RAID 1 configuration. is it mirrored? I mean even if one Harddrive goes down does the other other act as backup?

2) what are the advantages of RAID 1.

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400GB Hard Disk Drives In RAID 0, RAID 5 And RAID 10 Arrays: Performance Analysis

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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Advantages Of VPS

Aug 16, 2008

I am on a reseller so I can manage the couple of websites I own and host a couple of friends. However, would I be better off with a VPS?

Would I still have an INODE limit?

Would I be able to remove DNS settings as I keep having to ask my host to do this for me so I can create an account in WHM.

Also, what are these packages like?

VPS 1

* 10GB UK Web Space
* 100GB Bandwidth
* 128MB RAM
* Host unlimited domains
* RAID 1 Protected
* £15.00 Monthly Cost
* £180.00 Annual Cost

VPS 2

* 25GB UK Web Space
* 200GB Bandwidth
* 384MB RAM
* Host unlimited domains
* RAID 1 Protected
* £25.00 Monthly Cost
* £300.00 Annual Cost

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Advantages Of Apache2?

Oct 25, 2007

I am still running apache 1.3 something on my debian vps but debian would really like to upgrade to apache 2 (Ie PHP5 updates).

So I wanted to ask what the advantages and disavantages of running apache2 is?

Can apache2 use a 1.3 httpd.conf?

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Modvps :: Advantages And Disadvantages

Jan 17, 2009

wanna ask you about vps company called modvps

what is the advantages and disadvantages of this company?

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LiteSpeed Advantages Vs. Apache

Jan 24, 2009

I know most webhosts run Apache and it seems to server their needs very well. However LiteSpeed is new and fast, assuming you have relatively static content. At least that's what I've heard. Beyond this, I don't know much, though a year ago I worked with a guy who hosted an iPhone software repository (smallish files, huge demand), and he put LiteSpeed on the servers to deal with the load. Running at 30+ Mbps, with spikes above 60, the server never went above 0.2 load as far as I remember, and it was just a 2GB Core 2 Duo E6300 1.86 GHz machine.

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Advantages Of Various Linux Distros For A VPS

Oct 26, 2008

I'm setting up a new VPS, and I have the option of a number of Linux distributions to choose from. There's all the usual suspects: CentOS, Debian, Ubuntu, Fedora Core, SuSE, etc. Why would I pick one over the others? I've used CentOS before, but I'm open to trying other distros. There's been lots of fuss over Ubuntu on the desktop, but why would I choose it for a server?

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Advantages Of A Control Panel

Jul 12, 2007

Do I need a control panel on a VPS? What are the advantages of one? I see vpslink.com doesn't offer a cpanel?

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Advantages Of Having A Seperate DB Server

Aug 26, 2007

list the obvious and not so obvious. And how easy would it be to set one up?

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Disadvantages (and Advantages) Of Non-root VPS

Oct 9, 2007

I've been leaning toward going with WestHost for a medium-sized project. They offer VPS without root access, though, and much of the advice in the "HOW TO: Secure and Optimize your VPS" thread requires running commands as root.

My experience has all been with colocating my own servers in a data center, with everything accessible when I log in as root (though of course I ordinarily logged in as a normal user instead). This was three or four years ago, and a lot has changed since then.

Can someone who's up on this stuff please describe the pros and cons of non-root VPS service such as WestHost provides? Cost seems to be one advantage :-} and I imagine it's wise for inexpert Webmasters not to have a completely wide-open system. Are there other pluses to non-root VPS that aren't as obvious?

Most importantly, what kind of operations will I not be able to carry out if I go with WestHost or a similar non-root VPS host? Can I reasonably expect the hosting service to perform the kind of locking-down described in WHT's tutorial on VPS security?

I'll be asking similar questions of WestHost's support people but thought it would be a good idea to ask people without a stake in either the root-access or the non-root way of doing things.

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Hardware RAID: Is Motherboard RAID As Good As A Dedicated PCI-E Card

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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Main Advantages Of Dedicated Vs. VPS Servers?

Apr 25, 2009

What are the main advantages of Dedicated Vs. VPS Servers?

I can probably do with a VPS, But before i go out and pay
for it, I want to make sure VPS is the right thing....

Right now i have Shared Hosting with 1 and 1 internet..

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Advantages Of Remote MySQL Server

May 23, 2008

What are the advantages of setting up a remote mySQL server?

If I do set one up, where do I go to look for one and what specs will be recommended?

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Advantages Of Using A Separate Host For Images

Aug 6, 2008

I'm starting to see this, or maybe it's always existed, but it seems like bigger sites are hosting their images on external servers. I've even seen some sites use Flickr as the host for all of their images. I guess for Flickr that means you have a guarenteed image CMS, but I really don't see that as why Flickr was created.

I'm sure there are bandwidth advantages, and maybe that's the main reason. Is there a point where the traffic gets so high that moving images off site would improve load times and sever loads? Is it a worthwhile endeavor for smaller sites? I'm curious to see what the thoughts are on this trend.

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VPS Advantages Over Shared & Recommended Hosts

Sep 5, 2008

Is it possible to get a rough description of the benefits of a VPS host over a shared host?

1) Support. Should support with a VPS host be better than my current shared provider? They offer live chat and a ticketing system. Tickets can take hours to get a response, live chat minutes but often there are no support operaters to answer the question.

2) Uptime. Will uptime be improved upon? My current host tends to range from 97%-99% in a month. Importantly will it suffer from soft outages where parts of the account are down (such as MySQL or http)?

3) Traffic. What levels of traffic will base VPS packages handle? Will a few semi active forums (say max 20 users on 3 forums) be manageable alongside several PHP/MySQL galleries and several hundred normal PHP pages?

4) Load. Does the load usage of other customers on the same server effect your account in the same way it does in a shared environment? Can one user bog down the entire server for everyone else?

5) Management. How much control is given to a user in managed VPS environment. Can you restart OS yourself (and do things like edit the firewall blocks)? Do you have to keep the OS (Linux in my case) and things like Apache and PHP up to date yourself or is that done for you.

6) Usage Policies. Are the usage policies in place in a VPS environment (limiting the amount of CPU process and memory you can use). If yes are they higher than in a shared environment.

Is it possible to get a little more on a few of the hosts I've looked at (if possible I'd like to be below the $50 a month mark).

JaguarPC ($20 / $40)
WiredTree ($50)
LiquidHost ($60)

Is it a case of picking any of these and getting a similar support and hosting service?

WiredTree seems to offer a decent compromise of price against value. Given that my site is still pretty small at the moment, would the smallest JaguarPC package be a better fit (so I'm not spending money for specs I'm not using).

Unfortunately disk space is a fairly big factor as the site uses quite a few image and small video files (I'm using something like 2GB at the moment but this would increase fairly rapidly over time). Does that mean a shared host is better suited for my needs?

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Advantages Of A Reseller Hosting Plan

Jan 18, 2007

I see Site5 have a 5 dollar deal on their homepage, but I don't know if it's any good. I hear from a lot of people to get a reseller account if you plan to make a lot of websites. It's more expensive than the 5 dollar plan with less bandwidth and storage, so there got to be something to it. What are the benefits of a reseller account compared to that 5 dollar deal plan?

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Any Experiences With Software-Raid 5 Vs Hardware-Raid 5? (e.g. Hetzner EQ9)

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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Whats The Best For Server With SATA Raid 1 And SCSI Raid 10

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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How To Setup Software RAID-10 On Linux With /boot On RAID-1

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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Additional Competitive Advantages For Hosting Packages

Aug 11, 2008

As far as I see each hosting company uses various methods to make customers buy their domains. They can provide free domains, free Fantastico scripts, website building software, templates etc. I am planning to launch my hosting company really soon. Also I think to include free internet marketing services in some hosting packages. I am just wondering if such internet marketing program can be considered as a significant competitive advantage stimulating customers to make a purchase?

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Main Advantages Of VPS Over Shared Reseller Hosting

Oct 1, 2007

I know to some of you this may sound like a totally silly question. But I would like to know what the main advantages are if you have a VPS instead of a shared reseller hosting.

I notice some of the basic VPS packages give you 512MB of memory. Other than that, the rest of the stats seem to be along the lines of what you might get in an advanced reseller hosting plan such as one available from Reseller Zoom.

I am looking into VPS as a dedicated server is a little over my budget, however, I am not entirely clear what makes VPS better.

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Worth Having RAID 1 If Raid Arrays Break

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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Software Raid 1 - Rather Slow During Raid 1 Recovery

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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RAID 5 Vs RAID 10 In Shared Hosting Server

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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Turn Non Raid Into Raid On Live Server

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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Read Raid-disk On Non-raid System

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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3ware RAID Or Software RAID

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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RAID Or Not To RAID: Trying To Decide On A New Server

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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Raid 1 SCSI Or Raid 10 SATA 10k

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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Software Raid Vs. Hardware Raid

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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RAID 10 Or RAID 5 With Online Backup

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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