Difference between revisions of "- 2. IBM Cloud Scale-out Block Storage Cluster"

Revision as of 13:40, 22 April 2019

Key Features

QuantaStor’s scale-out block storage configurations provide highly-available iSCSI block storage suitable for a variety of use cases. Each appliance contains SSD to accelerate write performance and each cluster must contain a minimum of 3x appliances. QuantaStor’s web-based management interface, REST APIs and QS CLI make storage provisioning and automation easy.

QuantaStor Scale-out iSCSI Block Storage Features

• S3 & SWIFT Compatible REST API support
• Hybrid HDD + SSD configuration to boost write performance
• Easy web-based management of all appliances with built-in QuantaStor storage grid technology.
• Easy expansion by adding appliances and/or drives.

Expandable

Add additional drives and/or additional appliances to expand capacity. Drives can be different sizes, appliances can have different numbers of drives but for optimal performance uniform drive count and capacities per QS server/appliance are recommended.

Performance

Adding appliances will boost performance as the configuration scales-out. Small 3x appliance configurations will deliver between 400MB/sec and 1.2GB/sec sequential throughput depending on block size and number of concurrent client connections. Erasure-coding is recommended for best write performance and replica mode is recommended for best read performance.

Quick Configurations Steps

Step One: Storage Management Tab → Create Grid → Click OK
Step Two: Storage Management Tab → Add Grid Node → Enter 2nd Appliance IP → Click OK
Step Three: Storage Management Tab → Add Grid Node → Enter 3nd Appliance IP → Click OK
Step Four: Storage Management Tab → Modify Storage System → Set Domain Suffix → Click OK (do this for each appliance)
Step Five: Storage Management Tab → Controllers & Enclosures → right-click Controller → Configure Pass-thru devices → Select all → Click OK (do this for each appliance)
Step Six: Scale-out Block & Object Storage Tab → Ceph Cluster → Create Ceph Cluster → Select all appliances → Click OK
Step Seven: Scale-out Block & Object Storage Tab → Ceph Cluster → Multi-Create OSDs → Select SSDs as journals, HDDs as OSDs → Click OK
Step Eight: Scale-out Block & Object Storage Tab → Storage Pools (Ceph) → Create Storage Pool → Select Erasure Coding Mode → Click OK
Step Nine: Cluster Resource Management → Create Site Cluster → Select All → Click OK
Step Ten: Cluster Resource Management → Add Site Interface → Enter IP address for iSCSI Access → Click OK
Step Eleven: Storage Management Tab → Hosts → Add Host → Enter host IQN → Click OK (do this for each host)
Step Twelve: Storage Management Tab → Storage Volumes → Create Storage Volume → Enter volume name, select a size, → Click OK
Step Thirteen: Storage Management Tab → Hosts → Right-click Host → Assign Volumes → Select volumes → Click OK

Reference Configurations

Scale-out iSCSI Block Storage Configuration Options

Small Tier - Hybrid Block Storage – 16TB	Use Cases	System View
2x E5-2650v4 or 4110, 64GB RAM, 8x 2TB SATA, QS Small Tier License, 1x 800GB SSDs (write log), 2x 1TB SATA (mirrored boot), 2x 10GbE Private Network ports	Highly-available block storage for virtualization (VMware, Hyper-V, XenServer) Scale-out block storage with Cinder integration for KVM based OpenStack deployments Highly-available block storage for databases	View Design Provisioning Guide Deploy