Is bcache ready for enterprise production?

[David Hardy]

A possibly relevant comment on bcache not being in RH 7 here:

http://serverfault.com/questions/616129/centos-7-bcache


On Thu, Aug 14, 2014 at 5:57 PM, Alan Johnson <alan at datdec.com> wrote:

> I'm in the process of replacing a FreeNAS install at $WORK with Linux.  I
> currently have Ubuntu 14.04 installed so that I can try bcache.  It is
> teir-2 storage, but of course every one gets fussy if it is down no matter
> how much we tell them not to put really critical stuff there, and of
> course, we don't want any real data corruption risk.
>
> I have a compelling reason to use it: to protect against performance
> issues leading to availability issues, which is something that bit us hard
> with FreeNAS/ZFS on this box.  I know the kernel devs have blessed it in
> 3.10, but RH left it out of RHEL 7​, but the only reason I have seen so far
> being it was not in the Fedora 19 kernel and RHEL 7 is based on Fedora 19.
>  They brought in a newer kernel for RHEL 7 but left some of the new
> features behind.
>
> I have a lot of FUD that is making me not want to use it, mostly driven by
> a terrible couple of years with FreeNAS/ZFS.  So, what I'm looking for is
> some REASON not to use it.  If we can't find any, we will probably give it
> a go, but the history of this box makes any "new-to-us" feature or
> technology very uncomfortable.
>
> So, does anyone have any bcache horror stories that might not be addressed
> in the 3.13 kernel?  Anyone know any additional details about why RH left
> it out?  Any other relevant information?
>
> ________________
>  Alan Johnson
> alan at datdec.com
> Date Format PSA <http://xkcd.com/1179/>
>
>
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>


-- 
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