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: 9,178
Thanks: 164
Thanked 627 Times in 532 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 07:00 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  365
john9527  148
azazel1024  134
stevech  117
htismaqe  99
L&LD  97
sfx2000  77
TonyH  71
AndreyPopov  56
ChristineBCW  54
RMerlin  6019
john9527  374
stevech  349
ryzhov_al  277
TeHashX  232
L&LD  231
RogerSC  199
sinshiva  147
sfx2000  133
joegreat  126
Most Viewed Threads* Hottest Threads*
Old Shellshock...  27547
Old Asuswrt-Merli...  11591
Old Antenna...  3961
Old Simple NAS...  2419
Old Brainstorming...  2221
Old Looking for...  1993
Old RT-AC68P  1907
Old Advice on...  1654
Old RT-AC68U...  1406
Old Asus...  1346
Old Asuswrt-Merli...  94
Old Antenna...  73
Old Brainstorming...  47
Old Advice on...  47
Old Simple NAS...  36
Old Looking for...  35
Old Shellshock...  31
Old Stable...  25
Old Issues...  24
Old WiFi Rates  23


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