Re: using PERC H700 for JBOD?

Cameron Smith <[email protected]>
Newsgroups gmane.linux.hardware.dell.poweredge
Message-ID <CABLobCNDaX=hkO7tSdm0WXq48hF=5FVt5Fx07z60_cuVpHL0Fg@mail.gmail.com>
The newish H830 offers Non-Raid (JBOD). Not a fit for your application but
just throwing this out there for others reference:
http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/Dell-PowerEdge-RAID-Controller-H830.pdf


Cameron Smith
Technical Operations Manager
Network Redux, LLC
5200 SW Macadam Ave Ste 450
Portland, Oregon 97239
Cell:   503-926-4928

On Thu, Nov 5, 2015 at 1:49 PM, Dan Yasny <[email protected]> wrote:

> 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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>
>
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