Sign in with
Sign up | Sign in
Your question
Solved

NAS Raid performance question

Tags:
  • Performance
  • Storage
  • NAS / RAID
Last response: in Storage
Share
July 22, 2013 1:16:32 PM

ok hello,
i am building a new nas for all my media files and what not, and i have a question i would like to ask
For a Nas accessed by multiple Pcs at the same time would using 4 x 250GB HDD in Raid have much performance gain over 1 x 1TB. data security is not so much a problem as this nas will be backed up to another set of hardrives (my current nas) the problem at the moment is how slow file access is ( i think its called latency)
any help would be greatly appreciated , thank you for any advice information you can offer!!

More about : nas raid performance question

Best solution

a c 950 G Storage
July 22, 2013 2:47:09 PM

Performance of a nas is usually limited by the network its on. A sinlge GB link will top out at about 100MB/s without caring if the drives can do 400mb/s or not. If you want the best performance its best to split up the load and heavy users into multiple network branches. This means multiple gigabit network cards need to be installed in the nas. Many come with two to begin with.

Multiple drives are better suited for multiple users than a single drive. Two users trying to pull different files at 50mb/s will 'work' a drive and then throw in user#3 who wants to write (which is an even slower process than reading) and the first two will come to a crawl; one drive just cant serve 3 masters at full speed.
Share
July 22, 2013 3:52:27 PM

popatim said:
Performance of a nas is usually limited by the network its on. A sinlge GB link will top out at about 100MB/s without caring if the drives can do 400mb/s or not. If you want the best performance its best to split up the load and heavy users into multiple network branches. This means multiple gigabit network cards need to be installed in the nas. Many come with two to begin with.

Multiple drives are better suited for multiple users than a single drive. Two users trying to pull different files at 50mb/s will 'work' a drive and then throw in user#3 who wants to write (which is an even slower process than reading) and the first two will come to a crawl; one drive just cant serve 3 masters at full speed.


Right, ok so basicaly for streaming the media i need idealy multiple gigabit ethernet connections but for seeking files and multiple 'masters' i will be better of with 4 x 250GB than 1 x 1TB because the 3 'masters' will 'work' the single drive into unusability, ok thanks thats great
m
0
l
!