Solved

FreeNAS Hardware RAID5 controller

Posted on 2010-09-18
6
1,319 Views
Last Modified: 2013-11-14
I want to setup a FreeNAS server with 4 Samsung 1.5Tb hard drives. The (Dell) Adaptec 2610SA 6 port SATA Raid Controller Card that I have does not seem to like drives over 1Tb so I need another.

Does anyone have any suggestions for a 4, 5 or 6 port SATA RAID controller that IS compatible with FreeNAS and is also reasonable in price. Storage space is the requirement, not speed.

Or, can the RAID control I have be updated with firmware to support 1.5Tb drives?
0
Comment
Question by:DanoliSolutions
6 Comments
 
LVL 15

Assisted Solution

by:JBond2010
JBond2010 earned 166 total points
Comment Utility
There is a 2TB limit on this card. One option would be to create the other disks as dynamic disks.
0
 
LVL 1

Accepted Solution

by:
SSJ3Goku earned 168 total points
Comment Utility
Hello!

I would highly recommend this product: http://www.newegg.com/Product/Product.aspx?Item=N82E16822102042

It works great for me! Too bad the controller you got was no good. 2TB limit is a joke on any modern RAID controller.

0
 
LVL 18

Expert Comment

by:BigSchmuh
Comment Utility
RAID 5 ? I hope this is not for any dosage of random write usages (apart for Archive, Backup, WriteOnceReadMany usages that are good opportunity for parity RAID)

I although hope those HDD are "Enterprise class" Samsung with a UBE of 1 unreadable sector per 10e15bits read...otherwise, you have :
-a 13% probability of a failure at rebuild time
-a very high probability of a "disk disconnect" at the very first error recovery process lasting for more than 8 seconds (RAID capable drives has a CCTL / TLER feature to timeout in 7 seconds max)
0
 
LVL 18

Assisted Solution

by:BigSchmuh
BigSchmuh earned 166 total points
Comment Utility
-a 13% probability of a failure at rebuild time
==> Sorry I wrote a wrong number because 13% is only for ONE 1.5TB "Desktop class" drive read at once

With 3x 1.5TB to be read at once (to rebuild a new 4th drive), the probability of a unrecoverable read error is about 33%...
==> Fyi, this probability (for 3 drives to rebuild a 4th one) with "Enterprise class" drives (UBE of 1 per 10e15) is about 2.6%
0
 
LVL 68

Expert Comment

by:Qlemo
Comment Utility
This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
AWS Glacier is Amazons cheapest storage option and is their answer to a ‘Cold’ storage service.  Customers primarily use this service for archival purposes and storage of infrastructure backups.  Its unlimited storage potential and low storage cost …
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

6 Experts available now in Live!

Get 1:1 Help Now