SmallNetBuilder Forums
Go Back   SmallNetBuilder Forums > NAS > General NAS Discussion

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-28-2012, 06:41 AM
Tarrant1701 Tarrant1701 is offline
New Member
 
Join Date: Aug 2008
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Tarrant1701 is just starting out
Default benchmarking NAS RAID rebuild times

Tim,

I enjoy reading your NAS reviews, but was hoping you could comment on RAID rebuild times. QNAP seems to be moving away from Intel Core processors and instead outfitting their SMB/SOHO/home lines with Atom processors. Since I doubt QNAP uses a dedicated RAID controller, that means all parity calculations are done on processor, and usually Atom processors have less compute power than their Core counterparts.

Do you think the choice of an Atom processor affects NAS performance at all? Certainly their RAID5 file read/write performances are solid, but what about RAID rebuild times?

Thanks!
Reply With Quote
  #2  
Old 02-29-2012, 02:55 PM
thiggins's Avatar
thiggins thiggins is online now
Mr. Easy
 
Join Date: May 2008
Posts: 8,983
Thanks: 149
Thanked 585 Times in 498 Posts
thiggins is just starting out
Default

I have been noting rebuild times, but have been forgetting to include them in reviews.

I've noticed a trend where rebuild times are actually getting shorter. I believe this is because vendors are changing the rebuild defaults to skip the bad block check. Here are a few examples:

Thecus N4200PRO: "Quick RAID" rebuild time for 4 X 160 GB RAID 5 and 10 arrays, under 2 minutes!

QNAP TS-1079 Pro: 4 x 1 TB RAID 5. 2 hr, 30 mins

Before these lower numbers, RAID 5/10 rebuild of a 4 x 1 TB RAID with no other activity would take 8-10 hours.
__________________
Tim Higgins
Managing Editor,SmallNetBuilder.com
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 11:41 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  495
azazel1024  154
stevech  133
KGB7  128
sinshiva  113
hggomes  91
Kel-L  88
microchip  84
sm00thpapa  83
fistv  81
RMerlin  5517
stevech  322
ryzhov_al  264
TeHashX  215
L&LD  188
RogerSC  187
sinshiva  140
joegreat  123
jlake  122
sfx2000  118
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  73861
Old Asuswrt-Merli...  58612
Old Asuswrt-Merli...  22459
Old Asus locking...  9044
Old [Fork]...  8023
Old ASUS...  6782
Old Incoming...  5926
Old Asus...  5261
Old Share What...  2981
Old Download...  2850
Old Asuswrt-Merli...  392
Old Asuswrt-Merli...  389
Old Asuswrt-Merli...  132
Old Asus locking...  125
Old [Fork]...  87
Old Asus...  52
Old ASUS...  48
Old Inherited PC...  45
Old 376.44 -...  40
Old What's...  39


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
© 2006-2014 Pudai LLC All Rights Reserved.