Newsletter

FEBRUARY 2019

LINBIT NEWSLETTER

As we embrace 2019, the LINBIT® team is positioned to support you in the New Year.

In this issue, we offer tips on how to minimize downtime during maintenance, replicate storage volumes on a SCALEWAY ARM with LINSTOR®, and extend LINSTOR-managed DRBD® volumes to a Disaster Recovery (DR) node.

WHAT’S NEW AT LINBIT

Minimize Downtime During Maintenance

System maintenance, whether planned or in response to failure, is a necessary part of managing infrastructure. Everyone hopes for the former, rather than the latter. We do our system maintenance quarterly here at LINBIT in hopes that the later is avoided. These maintenance windows are where we install hardware and software updates, test failovers, and give everything a once over to ensure configurations still make sense.

Replicating Storage Volumes on SCALEWAY ARM with LINSTOR

I’ve been using Scaleway for a while as a platform to spin-up both personal and work machines, mainly because they’re good value and easy to use. Scaleway offers a wide selection of Aarch64 and x86 machines at various price points, however none of these VMs are replicated – not even with RAID at the hardware level – you’re expected to handle that all yourself. Since ARM servers have been making headlines for several years as a competing architecture to x86 in the data center, I thought it would be interesting to set up replication across two ARM Scaleway VMs with DRBD and LINSTOR.

DEMO OF EXTENDING LINSTOR MANAGED
DRBD VOLUME TO A DR NODE

In this video Matt Kereczman from LINBIT combines components of LINBIT SDS and LINBIT to demonstrate extending an existing LINSTOR managed DRBD volume to a disaster recovery node, located in a geographically-separated datacenter via LINSTOR and DRBD proxy.