Storage features

- Invista is correct
- LUN migration from 1 RG to another
- Connectrix MDS (= Cisco). Brocade also has something like that called lsan's, but you need an MPR for this, like the MP7500.

Thanks

Regarding Lun migration from 1 RG to another, you mean if
I have a Lun in RAID 5 for exemple, it will be converted to RAID 10
when migrated to a RG in Raid 10 ?

Regards

Consty

Correct. It's not the LUN that "decides" what RAID level it's on, but the Raid Group, so if you migrate LUN's from a RAID5 Raid Group to a RAID10 Raid Group, they will be "converted" to RAID10.
Furthermore, you can also migrate a metaLUN to another LUN which is not a metaLUN and you end up with a less complex LUN (this might have an performance impact as the components in a metaLUN can be on several Raid Groups and if you migrate to a single new LUN, it's on only 1 Raid Group. More Raid Groups can contain more disks and perform better, but it's all in the design

You may also want to look at PowerPath Migration Enabler, which can be used for "enabling non-disruptive data migrations through the host in heterogeneous environments, without the need for an underlying migration technology".

Short overview here;
http://www.emc.com/products/detail/software/powerpath-migration-enabler.htm
plus more information available on Powerlink.

Regards,
DGM

Consty,
Your questions have been answered already, I just wanted to add a few thoughts.


All CLARiiON arrays running current FLARE code use what EMC terms the Virtual LUN technology. Any LUN you create is technically a virtual LUN that can be non-disruptively migrated within the array using the built in capabilities of the array. If you are asking about mirroring/cloning a LUN within the array then that is built into the CLARiiON line as well using SnapView or SANCopy. If you are asking about mirroring LUNs between arrays then MirrorView is a CLARiiON based tool for that. Invista is a SAN fabric based storage virtualization solution that enables you to virtualize entire arrays.


Yes, the CLARiiON can non-disruptively migrate a LUN from on RAID group of a certain type to another RAID group of the same or different type. The destination LUN can even be larger than the source allowing you to grow the LUN.


This is a SAN fabric technology/concept no a storage array function. Cisco switches have VSAN capabilities built in.

Is there something specific you are trying to address? If you could provide more information I think you will get some more specific answers.

Aran

Hi all,

Thank you all for all your answers.

Good summary Aran, unfortunaltely I wanted to use Brocade switches (no
Vsan)

Regards

Consty