Re: using PERC H700 for JBOD?

Dan Yasny <[email protected]>
Newsgroups gmane.linux.hardware.dell.poweredge
Message-ID <CALLXwb5=EaEkBqixOEpX0p=52KY-5RXq9sGpB_xm=JGNj=U5WA@mail.gmail.com>
You can definitely create a bunch of raid0 using single drives. However,
this is not going to give the host kernel and it's modules (ZFS etc) direct
access to the disks and isn't really JBOD. You are still going through the
controller, using the controller cache.

This is not a great solution for ZFS, and it has been mentioned as such too
many times over the years.

I wish Dell finally came through with a real JBOD mode in those PERCs, but
afaik it's still low priority for them.

On Thu, Nov 5, 2015 at 4:37 PM, Bond Masuda <[email protected]> wrote:

> I've read in various places online that it is not possible to use PERC
> H700 for JBOD for folks who want to use LVM2 or ZFS to glue their own
> storage together instead of RAID in the H700. I recall with the old
> PERC6/E, I could simply create a RAID-0 VD with 1 disk and in effect
> access each of those disks individually. I remember specifically doing
> this on a PE2970 connected to a MD1000 array. Is that not possible with
> the H700?
>
> Bond
>
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