MSA 2060 Linear Diskgroup and raid Priority on Tiering

[m_chavoushian]

Hi

I had two questions, thank you for answering me

In the version of SMU 4, is the concept of linear disk group completely removed? Or is there a new workaround?

Second question: If we have, for example, Raid 10 and Raid 5 in one tier and these are inside a pool, what will the MSA device do? Is there a priority to use several different tiers in one pool? Please someone tell me Tiering in each layer and between different raids.
By the way, I already know that the term tiering is used to transfer information between different disk drives, but this is important.

[SahanaR · Accepted solution]

Hello!

Good day!

MSA 2060(gen 6,latest) is the new generation flash-ready hybrid storage system that allows you to use it as only"virtual storage".

Linear(vdisks) concept is not allowed.

Storage Services

• Virtual Storage  Up to two pools (1PB each)   Automated tiering v2.0  SSD read cache extension  Thin Provisioning  Volume Copy  Snapshot capability (64 snaps standard, 512 optional snapshot per array) • Virtual Storage Disk Groups can be spanned across multiple enclosures.  • Virtual Storage RAID levels supported: 1, 5, 6, 10, MSA-DP+ • New disk group type (MSA-DP+):  Integrated sparing  Fast rebuilds  Improved sequential performance  Incremental disk group expansion

MSA device uses automated tiering engine which is responsible for ensuring the optimal location for data, including when data is first written to a volume.

For detailed ingo on tiering and raids please refer from page 7 in the below guide,

HPE MSA Gen6 Virtual Storage Technical Reference Guide

https://www.hpe.com/psnow/doc/a00103247enw

Thanks

[m_chavoushian]

Thanks
Thank you for your complete answer
I got the answer to my question

[Sunitha_Mod]

Hello @m_chavoushian, 

Excellent! 

We are glad to know your concern has been addressed.