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: 9,191
Thanks: 165
Thanked 629 Times in 533 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 11:39 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  403
john9527  159
azazel1024  120
htismaqe  105
sfx2000  87
stevech  74
ColinTaylor  69
AndreyPopov  58
TonyH  54
bbb0777  42
RMerlin  6061
john9527  391
stevech  351
ryzhov_al  280
TeHashX  237
L&LD  232
RogerSC  201
sinshiva  147
sfx2000  134
joegreat  126
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  30328
Old RT-AC68P...  2868
Old Brainstorming...  2719
Old Advice on...  2616
Old Looking for...  2371
Old RT-AC68U...  1923
Old Asus...  1829
Old Issues...  1791
Old Stable...  1702
Old AC-68...  1634
Old Asuswrt-Merli...  213
Old Brainstorming...  49
Old Advice on...  49
Old Looking for...  35
Old RT-AC68P...  33
Old WiFi...  27
Old Stable...  25
Old Issues...  25
Old WiFi Rates  23
Old RT-AC68U...  22


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