Entries by matt

Albireo Virtual Data Optimizer (VDO) on DRBD

TL;DR: Pairing DRBD with VDO reduces the replication network and storage utilization by ~85% while increasing load by ~0.8. VDO (Virtual Data Optimizer)[1] is a ready-to-run software package that delivers block-level deduplication, compression, and thin provisioning capabilities to Linux. VDO operates inline at a 4 KB granularity, delivering the best possible balance of performance and […]

DRBD 9 over RDMA with Micron SSDs

We have been testing out some 240GB Micron M500DC SSDs with DRBD 9 and DRBD’s RDMA Transport layer.  Micron, based in Boise Idaho, is a leader in NAND, flash production and storage.  We found that that their M500DC SSD’s are write optimized for data center use cases and in some cases exceeded the expected performance.