I’ve shared numerous shell scripts over the years on this blog, many of which benefit from being scheduled to run automatically on the Control Station. I’ve received emails and comments asking “How do I schedule Unix or Linux crontab jobs to run at intervals like every five minutes, every ten minutes, Every hour, etc.”? I’ll … Continue reading Using Cron with EMC VNX and Celerra →
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I recently received a comment asking for more information on EMC’s FAST Cache, specifically about why increased CPU Utilization was observed after a FAST Cache expansion. It’s likely due to the rebuilding of the cache after the expansion and possibly having it enabled on LUNs that shouldn’t, like those with high sequential I/O. It’s hard … Continue reading Best Practices for FAST Cache →
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InsightIQ includes a very useful data export tool: iiq_data_export. It can be used with any version of OneFS beginning with 7.x. While the tool is compatible with older versions of the operating system, if you’re running OneFS v8.0 or higher it offers a much needed performance improvement. The improvements allow this to be a much more functional tool that can … Continue reading Using the InsightIQ iiq_data_export Utility →
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In this post I’m going to review the most useful commands for managing SyncIQ replication jobs and SnapshotIQ snapshots on the Isilon. While this will primarily be a CLI administration reference, I’ll look at some WebUI options as well when I get to Snapshots, as well as some additional notes and caveats regarding snapshot management. I’d highly recommend reviewing … Continue reading Diving in to Isilon SyncIQ and SnapshotIQ Management →
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The biggest value of blockchain in enterprise storage will be what it enables, not what it is. While it has yet to be fully embraced by the enterprise, blockchain is well poised to change enterprise IT much like open source software did 20+ years ago. Interest is steadily rising, and there is evidence that businesses … Continue reading Blockchain and Enterprise Storage →
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Flexible IO tester (FIO) is an open-source synthetic benchmark tool first developed by Jens Axboe. FIO can generate various IO workloads: sequential reads or random writes, synchronous or asynchronous, all based on the options provided by the user. FIO provides various global options through which different type of workloads can be generated. FIO is the … Continue reading Storage Performance Benchmarking with FIO →
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Other CLI Reference Guides: Isilon CLI | EMC ECS CLI | VNX NAS CLI | ViPR Controller CLI | NetApp Clustered ONTAP CLI | Brocade FOS CLI | EMC XTremIO CLI This is a Data Domain CLI Command Reference Guide for the commands that are more commonly used. If you’re looking to automate reports for your Data Domain, see my post … Continue reading Data Domain CLI Command Reference Guide →
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This is a list of syntax examples for using uemcli on a Unity array. It covers system management, networking, host management, hardware, storage management, data protection and mobility, events and alerts, andsystem maintenance. Install the UEMCLI on your client machine or open an ssh session to the unity array as uemcli is already accessible there. This … Continue reading Dell EMC Unity Unisphere CLI Command Reference Guide (UEMCLI) →
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Other CLI Reference Guides: Isilon CLI | EMC ECS CLI | VNX NAS CLI | ViPR Controller CLI NetApp Clustered ONTAP CLI | Data Domain CLI | Brocade FOS CLI This is a quick reference guide for the EMC XTremIO CLI, including all of the commands for cluster monitoring, cluster operations, hardware management, volume operations, administration & configuration, and … Continue reading EMC XTremIO CLI Reference Guide (XMSCLI) →
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Other CLI Reference Guides: Isilon CLI | EMC ECS CLI | VNX NAS CLI | ViPR Controller CLI Data Domain CLI | Brocade FOS CLI | EMC XTremIO CLI This is a comprehensive CLI command line reference guide for NetApp Clustered Data ONTAP. The commands are based on Version 9.x. It includes a list of commands for Autobalance, Cluster, … Continue reading NetApp Clustered Data ONTAP Command Line Reference Guide (CDOT CLI) →
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The enterprise storage market has been a hotbed of innovation and entrepreneurship in the last several years. While the storage industry has consolidated with acquisitions (such as HP’s purchase of Nimble) or otherwise simply shutting down, there always seem to be new companies waiting in the wings to take over. These latest new companies are … Continue reading A Roundup of Storage Startups →
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Other CLI Reference Guides: Isilon CLI | EMC ECS CLI | VNX NAS CLI | NetApp Clustered ONTAP CLI | Data Domain CLI | Brocade FOS CLI | EMC XTremIO CLI This is a comprehensive CLI command line reference guide for EMC’s ViPR Controller. The commands in this list are based on Version 3.6.x. This reference is designed to be … Continue reading EMC ViPR Controller CLI Command Reference →
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What is Access Gateway Mode? Access Gateway mode is useful when you need to add more ports to your fabric without the additional complexity of using additional zoning configurations or additional domains. It allows us to configure an F port as N port. Other Useful Brocade related posts FOS CLI Reference Guide Automating Config Zone … Continue reading Configuring a Brocade Switch for Access Gateway (AG) Mode →
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This is a CLI command line reference guide for HP’s 3PAR OS, and is based on version 3.3.1. It is a complete list of commands and a description of their function, I’d recommend reviewing HP’s official support documentation for specific information on command line arguments and advanced functions of each command. This is designed to … Continue reading HP 3PAR CLI Reference Guide →
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