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 offline
Mr. Easy
 
Join Date: May 2008
Posts: 8,508
Thanks: 95
Thanked 463 Times in 395 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 06:59 AM.

Top 10 Stats
Top Posters* Top Thanked
RMerlin  401
stevech  156
thelonelycode...  148
L&LD  126
azazel1024  119
KGB7  86
jim769  80
DrTeeth  69
Adamm  64
speedingcheet...  61
RMerlin  4487
stevech  275
ryzhov_al  199
TeHashX  194
RogerSC  166
L&LD  163
joegreat  105
jlake  102
PrivateJoker  93
sinshiva  88
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  31950
Old Asuswrt-Merli...  24137
Old ASUS...  22772
Old Beta Version...  17535
Old 'Heartbleed'...  14322
Old Linksys...  9438
Old Potential...  7940
Old Asus-Merlin...  7112
Old Groundhog...  6430
Old Linksys...  5764
Old Asuswrt-Merli...  220
Old Asuswrt-Merli...  179
Old Linksys...  144
Old ASUS...  125
Old Beta Version...  112
Old Potential...  98
Old Linksys...  79
Old Groundhog...  49
Old Asus router...  43
Old USB drive...  39



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