Category Archives: My projects

What is the name of a new drive in my FreeBSD box

or a quick way to list GEOM configuration in FreeBSD Drives related information questions, including that one in the title, may be tricky for a new (and sometimes for an experienced) FreeBSD user, and even Handbook advises to see the “dmesg” … Continue reading

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D81S – simple SAN visualisation tool

D81S – my SAN visualisation tool, which I develop to build a full map of a Fibre Channel Storage Area Network by tracing all paths from HBAs to storage logical devices. D81S scans SAN switches and storage systems to create a database of … Continue reading

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First sketches of the new BeaST Grid family storage system

“The BeaST Grid” is a work name of the reliable storage cluster concept. It will consist of a few Controller Nodes with optional internal drives and several Drive only Nodes. All nodes are commodity computers with internal drives. Controller Nodes will … Continue reading

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The BeaST storage system with ZFS and CTL HA, latest news

Finally, I did it! The BeaST storage system with ZFS and CTL HA works in ALUA mode with zpools balanced over controllers. The BeaST Quorum automates Failover/Failback operations. Yes, I have something to say now: Read the full description on … Continue reading

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Fighting with ZFS to make zpools failover/failback possible

After success with single zpool switching, I’m trying now to create a reliable and balanced construction with two controllers and two pools. When one of the controllers is dead, its pool successfully migrates to the other controller. But when the … Continue reading

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Fresh BSD Magazine with my article as a headline!

Boasting now as the fresh BSD Magazine puts my paper “Nearly Online Zpool Switching Between Two FreeBSD Machines” on top of the issue’s cover. My text is about problems of ZFS storage pool sharing between computers and solutions of overcoming these obstacles. To … Continue reading

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Conway’s Game of Life for Excel

I always wanted to use MS Excel for a really, really useful project! You know, something like these amazing tools, which allow you to convert a picture into an array of cells on the Excel spreadsheet. So, don’t thinking much … Continue reading

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