Replacing a 512byte/Sec HDD with a 4K/Sec HDD

[C.C. Chan]

Hi, I am moving my nas box from Freenas to nas4free. I have 3x2T 512byte/sec HDD working well. I plan to use zfs, and will configure them into raidz1. My question is: As I create the pool without the 4K check, how do I replace dead HDD with a new 4K/sec HDD in the future, because it's hard to find a new 2T 512byte/sec HDD from the market? Or can I create the pool with 4K ckeck for the 3x2T 512byte/sec HDD, and then I can replace dead HDD with a new 4K/sec HDD in the future? Any problem if I create the pool with 4K check for 512byte/sec HDDs?

Thanks!
Chan

[raulfg3]

not possible, but you can use a 4K disk in a 512 byte Disk-pool and do not notice speed penalty ( at least not a lot of penalty) please replace it an do several test to see if really notice differencies on speed.

[raulfg3]

Hi, my question is:
Hi, I am moving my nas box from Freenas to nas4free. I have 3x2T 512byte/sec HDD working well. I plan to use zfs, and will configure them into raidz1. My question is: As I create the pool without the 4K check, how do I replace dead HDD with a new 4K/sec HDD in the future, because it's hard to find a new 2T 512byte/sec HDD from the market? Or can I create the pool with 4K ckeck for the 3x2T 512byte/sec HDD, and then I can replace dead HDD with a new 4K/sec HDD in the future? Any problem if I create the pool with 4K check for 512byte/sec HDDs?

Please advise me what to do.
Thanks!
Chan

[raulfg3]

My question is: As I create the pool without the 4K check, how do I replace dead HDD with a new 4K/sec HDD in the future,

replace in the normal way, your 4K disk are used by your pool like a 512 Bytes Disk, this, do not suppose a great problem, only (in theory suppose a speed problem), but in my experience do not notice, so my point is:

Replace it and test if notice less speed.


PD: Read this post is really interesting: viewtopic.php?f=59&t=5811

adn http://forums.freenas.org/threads/9-2-n ... 883/page-2