XFileSharing Pro - Raid or No Raid?? 12x2tb

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joebloggs
Posts: 50
Joined: Mar 13, 2012 3:40 pm

Raid or No Raid?? 12x2tb

#1 Postby joebloggs » Apr 09, 2012 10:41 pm

If you have a server with say 12 x 2tb drives.

Anyone here just set each drive up as a seperate subdomain??

Would that workout okay if each drives data was backed up on a different machine?

How does this compare to raid 10?

How much faster/slower would the above set up be vs raid6?

Raid kind of worries me in that if you lose 2 drives with raid 10 you could lose your entire server data.

There must be a very good reason why everyone uses raid over lots of separate sub domains. Also say you have the nginx mod done, would you need to pay for 12 x nginx mods if the drives are all allocated to different subdomains?

bhanuprasad1981
Posts: 129
Joined: Apr 30, 2009 10:31 am

#2 Postby bhanuprasad1981 » Apr 10, 2012 5:11 am

i havent setup raid so cant comment, but yes if you use nginx mod you will have to pay for all 12 sub domains , but cost is less for servers on same machine

ankurs
Posts: 1054
Joined: Mar 10, 2009 2:34 am

#3 Postby ankurs » Apr 10, 2012 5:41 am

no raid = waiting for data to be lost on a drive failure

i would go with raid10, gives good performance and data is safe

Stefanzm
Posts: 85
Joined: Apr 08, 2012 3:41 pm

Going offtopic

#4 Postby Stefanzm » Apr 10, 2012 7:47 am

Got the answer already , its not needed to buy each time the nginx mod.
Last edited by Stefanzm on Apr 10, 2012 10:01 am, edited 1 time in total.

bhanuprasad1981
Posts: 129
Joined: Apr 30, 2009 10:31 am

#5 Postby bhanuprasad1981 » Apr 10, 2012 7:58 am

servers without raid and multi hdd needs multi subdomains on multi hdd in that scene we have to pay per sub domain / server for nginx mod , in my case i had my server with 4 hdds / 4 servers/subdomains but cost is less compared to physical servers

joebloggs
Posts: 50
Joined: Mar 13, 2012 3:40 pm

#6 Postby joebloggs » Apr 10, 2012 11:51 am

ankurs wrote:no raid = waiting for data to be lost on a drive failure

i would go with raid10, gives good performance and data is safe



Thanks for you help. If we had a back up server with 12 drives though this would be okay right?

With raid 10 if 2 drives fail on same build then the entire 12 drives are lost though right? that is kind of worrying for us.


What about raid 6 ? this can have 2 drive failure i hear and still be okay?

Also about the 12 seperate subdomains one for each drive, would that not be quite a fast solution? without the worry of losing entire array?

ankurs
Posts: 1054
Joined: Mar 10, 2009 2:34 am

#7 Postby ankurs » Apr 10, 2012 12:14 pm

joebloggs wrote:Thanks for you help. If we had a back up server with 12 drives though this would be okay right?

how much time would it take to transfer 2TB from your backup server ? can you afford such a downtime ?

joebloggs wrote:With raid 10 if 2 drives fail on same build then the entire 12 drives are lost though right? that is kind of worrying for us.

chances of that are extremely rare, raid10 is safest; but its not an alternative to offsite backups

joebloggs wrote:What about raid 6 ? this can have 2 drive failure i hear and still be okay?

raid 6 has poor write performance & any 2 drive failures can mean you loose all data

joebloggs wrote:Also about the 12 seperate subdomains one for each drive, would that not be quite a fast solution? without the worry of losing entire array?

as i said previously, it depends if you have a offsite backup & the amount of downtime you can afford

joebloggs
Posts: 50
Joined: Mar 13, 2012 3:40 pm

#8 Postby joebloggs » Apr 10, 2012 12:27 pm

Thanks very much for your fast reply to answer all the points. That has been very helpful.

cheers ankurs :)

gLoad
Posts: 33
Joined: Feb 26, 2012 6:12 pm

#9 Postby gLoad » Apr 10, 2012 1:29 pm

Just to add my point to the discussion:

do not forget that Raid 5/6/10 are usually found on high end controllers, that will surely provide an option to configure some drive as hot spare, and some monitoring software to instantly send an email when a drive fail or has an anomaly.

Bye.

joebloggs
Posts: 50
Joined: Mar 13, 2012 3:40 pm

#10 Postby joebloggs » Apr 10, 2012 2:47 pm

gLoad wrote:Just to add my point to the discussion:

do not forget that Raid 5/6/10 are usually found on high end controllers, that will surely provide an option to configure some drive as hot spare, and some monitoring software to instantly send an email when a drive fail or has an anomaly.

Bye.



Thanks for your input too on this. The email alert is somethign we will certainly use.

thanks


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