OpenShift Container Storage 対応するワークロード • Primary for DB and Transactional workloads • Low latency • Messaging Persistent Volume • POSIX-compliant shared file system • Interface for legacy workloads • CI/CD Pipelines • AI/ML Data Aggregation • Messaging Shared File System Block • Media, AI/ML training data, Archiving, Backup, Health Records • Great Bandwidth performance • Object API (S3/Blob) Object Service
https://docs.openshift.com/container-platform/4.1/scalability_and_performance/optimizing-storage.html#specific-application-storage-recommendations • Lots of Storage Administrative Toil 1 ◦ Manual share provisioning and PV definition ◦ Custom security contexts • No “true” RWO 1 ◦ No access enforcement when accessMode: RWO • Reclaim caveats 2 ◦ Must not re-use PVC names or risk errors / data loss • Not recommended for master services - Registry, Quay, Metrics, Logging 3
• Does not provide regional availability or portability • Volume size limit - 16TB 1 • Instance attachment limits - 28 for most common instance families (c5/m5/c5) 2 ◦ Includes EBS volumes, Network interfaces, NVMe devices 1. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_constraints.html 2. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_limits.html
Red Hat OpenShift Container Platform m5.xlarge us-west-2b m5.xlarge m5.xlarge us-west-2c m5.xlarge m5.xlarge M M OSD OSD OSD OSD OSD OSD OSD OSD OSD Storage classes: regional-rbd, regional-cephfs Red Hat OpenShift Container Storage us-west-2a Pod PVC Pod PVC