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Want to creare RAID 0+1 on EVA4400

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Aungshuman Paul
Regular Advisor

Want to creare RAID 0+1 on EVA4400

Hi,

Can anyone help on following issue :

I want to create VRAID10 ( RAID 1+0). But I did not find any option on Command View EVA for create VRAID10.

Waiting for reply.

Aungshu
15 REPLIES
Torsten.
Acclaimed Contributor

Re: Want to creare RAID 0+1 on EVA4400

The vraid1 is what you are looking for.

Hope this helps!
Regards
Torsten.

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Aungshuman Paul
Regular Advisor

Re: Want to creare RAID 0+1 on EVA4400

But in the Quick Spec. See attached doc ( page 3) Vraid1, Vraid 0+1 mention separatly.

But in the Command View EVA we found only VRAID0, VRAID1, VRAID5 and VRAID6.

That made us confused. Any idea?

Aungshu
Torsten.
Acclaimed Contributor

Re: Want to creare RAID 0+1 on EVA4400

I don't know what should be the difference between raid1 and raid0+1 on an eva.

However, the specs are likely the only source that mentioned these raid levels, but I'm only aware of vraid0, vraid1, vraid5 and depending on FW level vraid6.

Hope this helps!
Regards
Torsten.

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Aungshuman Paul
Regular Advisor

Re: Want to creare RAID 0+1 on EVA4400

We create VRAID1. But customer refer us this document and want to create VRAID0+1.

But I did not find any option for create it.

So totally confused . And dont know how to convinced customer.

Aungshu



Torsten.
Acclaimed Contributor
Solution

Re: Want to creare RAID 0+1 on EVA4400

In general a RAID1 is a mirrored disk, a RAID0+1 or RAID10 is usually a striped mirrored disk.


A vraid1 is always a striped mirrored disk (using all disks in a disk group), so you can compare to a RAID0+1.

Hope this helps!
Regards
Torsten.

__________________________________________________
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Steven Clementi
Honored Contributor

Re: Want to creare RAID 0+1 on EVA4400

vRAID6 may also be available on your 4400 depending upon the firmware version.

As stated.. vRAID1 on the EVA is effectively RAID0+1.


Steven
Steven Clementi
HP Master ASE, Storage and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5)
RHCE
NPP3 (Nutanix Platform Professional)
Torsten.
Acclaimed Contributor

Re: Want to creare RAID 0+1 on EVA4400

There are some documents about this on the web, for example

http://www2.openvms.org/kparris/eva_intro.ppt

(old but still valid)

or just search for something like

"eva distributed virtual raid"

Hope this helps!
Regards
Torsten.

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Aungshuman Paul
Regular Advisor

Re: Want to creare RAID 0+1 on EVA4400

Can we declare any hot spare disk in EVA?
Torsten.
Acclaimed Contributor

Re: Want to creare RAID 0+1 on EVA4400

No dedicated disk, but reserved space on all disks (protection level).

Hope this helps!
Regards
Torsten.

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Daniel_279
Advisor

Re: Want to creare RAID 0+1 on EVA4400


On the EVA product range, data is spread across all disks in a disk group. So there is no difference between vraid1 and vraid0+1. vraid1 on EVA implies varid0+1

Vraid0 - one copy of the data is spread across all the disks in a disk group.
Vraid1 - two copies of the data is spread across all the disks in a disk group
CLEB
Valued Contributor

Re: Want to creare RAID 0+1 on EVA4400

Latest quick specs:

http://tiny.cc/i92x5
Oscar_Maimó
Regular Advisor

Re: Want to creare RAID 0+1 on EVA4400

When you set the protection level it means:
Single: The firmware reserve a space = twice the largest disk drive in the group. This space is distributed among all disk in the group to make faster the leveling.
Doble:The same, but it reserve double space than single.
How ever, if you have enough free space in a group, the EVA will use it before sapare.

If the answer is helpful, please submit points.
Ah, please visit my blog, to include it in search engines indexes :)
Greetings
Oscar Maimó
http://oscarmaimo.blogspot.com
Aungshuman Paul
Regular Advisor

Re: Want to creare RAID 0+1 on EVA4400

Thanks. I understod about EVA's VRAID. Thanks everyone for participate in my thread.
Karmak Inc
Occasional Visitor

Re: Want to creare RAID 0+1 on EVA4400

What is the larged RAID 0+1 drive I can create on an EVA4400 and present to a VMS Integrity server runnung 8.3-1H1?
Uwe Zessin
Honored Contributor

Re: Want to creare RAID 0+1 on EVA4400

As far as I know, 1023GB (I would NOT use an 1024GB vDisk!) and the limit was raised to 2047GB in 8.4.
.