Category Archives: Storage

LLFD – Link, Login, Fabric, Devices

Have just prepared a brief cheat sheet to remind which processes begin when we connect an HBA with the Brocade Fiber Channel switch port, in other words, when a device joins a fabric. LINK Signal transition (light/electrical) Speed negotiation Character … Continue reading

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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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Accessing IBM SVC/Storwize devices with Python and SSH

Recently I have posted a simple example of how to fetch storage related data from IBM Spectrum Control with the help of Python and REST API. Now lets turn the power of Python to access IBM Storwize or SVC system … Continue reading

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Getting data from IBM Spectrum Control. RESTful API usage example in Python

Searching for a handy way to fetch data from IBM Spectrum Control (earlier versions are called Tivoli Storage Productivity Center (TPC)), I have found a perfect IBM storage blog: https://storagemvp.wordpress.com. Among other interesting topics it describes several methods to export … 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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