[prev in list] [next in list] [prev in thread] [next in thread] 

List:       gentoo-user
Subject:    Re: [gentoo-user] Comparing RAID5/6 rebuild times, SATA vs SAS vs SSD
From:       Tanstaafl <tanstaafl () libertytrek ! org>
Date:       2013-09-21 16:56:24
Message-ID: 523DCFB8.8010806 () libertytrek ! org
[Download RAW message or body]

On 2013-09-20 6:43 PM, Paul Hartman <paul.hartman+gentoo@gmail.com> wrote:
> A couple weeks ago one of the drives died. I hot-swap replaced it with
> a new one (with no down-time) and the rebuild took exactly 10 hours.
>
> Under normal operation, the speed of the array for contiguous
> read/writes is about 600MB/sec, which is faster than my SSD (single
> drive, not RAIDed).

Thanks...

But... RAID read/writes under normal operating conditions has nothing 
whatsoever to do with REBUILD speeds/times.

Again, the reason I'm interested in this is, if the rebuild times are 
'blindingly fast' (as compared to the times for SATA or even fast SAS 
drives - ie, 1 hour vs your 10 hours)), then maybe a RAID6 with SSDs is 
back in the realm of doable, since you don't lose 50% of available 
storage with RAID6...

[prev in list] [next in list] [prev in thread] [next in thread]