Upgrading from RAID 4 to RAID DP

Checking the RAID type and config In this example the aggregate has two disks and is a R4 configuration. testfiler01*> aggr status -r aggr1 Aggregate aggr1 (online, raid4) (block checksums) Plex /aggr1/plex0 (online, normal, active, pool0) RAID group /aggr1/plex0/rg0 (normal, block checksums) RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys ...

Different Storage Configurations

Overview Starting in Data OnTap 7.3.1.1 additional information was added to the sysconfig command for the Storage Configuration. Possible System Storage Configurations:   Configuration Type Description Single-Path All storage in system is single-pathed Mixed-Path Some storage is single-pathed, some is multi-pathed Multi-Path All storage in system is multi-pathed Single-Path HA All storage in this system ...

Disks sizing & types

RAID basics

I have learned a lot from this site in my early days. This really explains RAID in good detail. This is from acnc.com They have done a good job at trying to explain the different RAID levels and how they work.   Note: Click on the site to access the tutorial.      

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