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MSA 2060 assign lun on good raid group

 
MrChegrik
Occasional Visitor

MSA 2060 assign lun on good raid group

Good morning,

We are moving from an MSA 2040 bay to a 2060.
I apologize in advance for the question, I have read the documentation of the MSA 2060 well, but it is possible that I did not understand something. My English was not very good.

I created 3 disk groups:
• MSA-SP+: with 15K speed disks to store production servers
• RAID 6: with these 10K speed disks to store Vms without the need for performance or for archiving
• RAID5 SSD: to store servers with very high performance requirements

I cannot manage on the 2060 array to assign a volume to the desired disk group.
This was possible on the 2040 array.

How can I be sure that the servers on such LUN will end up on the desired disk group?

For example It is very important to us that a production server runs on 15k speed disks for example, or that a VM dedicated to archiving is stored on 10k speed disks. Same for SSD.

Can you help me on this point please?

Good day

3 REPLIES 3
support_s
System Recommended

Query: MSA 2060 assign lun on good raid group

System recommended content:

1. HPE MSA 1060/2060/2062 Storage Management Guide

2. HPE MSA 1060/2060/2062 Storage Arrays Best Practices

 

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MrChegrik
Occasional Visitor

Re: Query: MSA 2060 assign lun on good raid group

Good morning,
I have read these documentations, but I did not understand this point.
Could you help me to understand please?

JonPaul
HPE Pro

Re: Query: MSA 2060 assign lun on good raid group

@MrChegrik 
It sounds like you are moving from an MSA 2040 with Linear Storage to an MSA 2060 with Virtual storage and there are some significant changes between the different storage configurations.
Here is a document which will help with understanding Virtual Storage:  https://www.hpe.com/psnow/doc/a00103247enw
In short the individual RAID sets (VDISKs/Disk-Groups) now make up a Pool of storage (or 2 Pools).  Volumes are then carved out of the Pool and the system determines where the actual data lands.
In your configuration,  I would recommend having 2 different Pools (the maximum number of Pools is 2).  Using the 15k and SSDs in one Pool and the 10k drives in the other Pool -- this is because the 10k and 15k drives are in the same Tier (Standard) in the Pool and would be 'wide-striped' with differing performance between the 2 disk-groups.
For volumes which are for servers for 'very high performance' make sure to choose the Performance Tier Affinity when creating the volume.  You could also select the Archive Tier Affinity for other volumes on the same Pool which do not require the max performance.  This will not guarantee data locations but is the best you could do. 
There are other ways to configure your hardware and trade-offs for each, the Virtual Storage Technical Guide will help with the concepts of virtual storage and could guide you to a different solution for your installation.

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