Tom's Hardware > Forum > Storage > NAS/RAID & Technologies > SAS drives?

SAS drives?

Forum Storage : NAS/RAID & Technologies - SAS drives?

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!

Ask the community Add a reply

Bottom Search this thread

I own a N7700 Thecus NAS.

I have recently learned that Thecus has released a new model called N7700 SAS. From what i know, it supports SAS hard drives.

My question is, will I be able to add something or upgrade my N7700 to be compatible with these SAS hard drives?

What is the difference between SAS hard drives and standard SATA drives in terms of speed and price.

Thank you in advance for your answers

Vino

Add a reply

All I know is that some SAS links are backward-compatible with SATA drives, so maybe all you have to do is acquire the hard disk controller of the newer NAS and install it on your old one?

Reply to TonCharr28

At this point in time sas isn't really cost effective for the performance gain so you might just wanna hang on to what you got for a while.

------------------------------ E8400 : GA-EP35-DS3L : mushkin 4GB DDR2 800 : HD 2600PRO : 450W ATX12V : Windows 7
Reply to 505090

SAS is a wonderful type of drive if you want to run a server. If you want it for home use , forget it. They are generally made to handle large numbers of simultaneous requests, not provide peak performance for one or two transfers, and are quite expensive per gigabyte (in many cases, making velociraptors look like a good deal).

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
Reply to cjl

N7700 and N7700SAS have different backplane, you can't just upgrade your N7700 to be compatible with SAS HDDs.

About speed, SAS HDDs have a rotational speed of 15000 RPM and SATA HDDs only have 7200 RPM.

Reply to PandaZ

both sata and sas can be found in 10,000RPM

------------------------------ E8400 : GA-EP35-DS3L : mushkin 4GB DDR2 800 : HD 2600PRO : 450W ATX12V : Windows 7
Reply to 505090

Quote :

What is the difference between SAS hard drives and standard SATA drives in terms of speed and price.

In terms of throughput you'll be limited by the controller and GbE of the N7700 SAS so the advantage of using SAS drives faster than 7200RPM is really for higher IOPS.
If it's just between SAS and SATA of same class (e.g. 7200RPM nearlines) then what SAS offers over SATA is really just those. In particular TCQ has many performance advantages over NCQ under multi-user usage.

Quote :

My question is, will I be able to add something or upgrade my N7700 to be compatible with these SAS hard drives?

Swapping the backplane for alone should be suffice to convert SATA version of N7700 to SAS as both uses two Marvell 88SE6340 controllers.

------------------------------ GTL Ref Tweaking Guide - PM for detail
Brand is for the weak-minded, only product matters.
Resilient to marketing.

http://farm3.static.flickr.com/2520/3850950213_aea6bbbcfe_o.jpg

Reply to wuzy

SAS = Serial attached SCSI. it is basically a drive that encapsulates the SCSI commands in the SATA protocol. Hence why SAS controllers will generally also work with SATA drive.

Reply to spinning rust

Ask the community Add a reply

Tom's Hardware > Forum > Storage > NAS/RAID & Technologies > SAS drives?

Go to:

Help |
Forum rules

There are 1225 identified and unidentified users. To see the list of identified users, Click here.

Page generated in 0.338 seconds

Focus On

SAS drives?

Forum Storage : NAS/RAID & Technologies - SAS drives?