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: 9,011
Thanks: 151
Thanked 593 Times in 500 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 05:07 AM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  363
stevech  156
KGB7  119
Kel-L  102
sfx2000  98
azazel1024  93
sinshiva  83
john9527  81
fistv  70
F5ing  68
RMerlin  5601
stevech  329
ryzhov_al  266
TeHashX  217
L&LD  192
RogerSC  190
sinshiva  143
joegreat  127
jlake  122
sfx2000  121
Most Viewed Threads* Hottest Threads*
Old Asuswrt-Merli...  78252
Old Asuswrt-Merli...  47271
Old [Fork]...  20340
Old Asus locking...  10384
Old ASUS...  8388
Old Incoming...  8048
Old Asuswrt-Merli...  3416
Old Asuswrt-Merli...  3042
Old Thinking of...  2203
Old Any reason...  1991
Old Asuswrt-Merli...  393
Old Asuswrt-Merli...  215
Old [Fork]...  136
Old Asus locking...  125
Old Connection...  55
Old [HOW TO]...  50
Old ASUS...  50
Old Incoming...  44
Old 376.44 -...  40
Old Use the same...  35


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