HP Cluster Test Software manual Disk Scrubber

Page 39

Disk Scrubber

The Disk Scrubber tool erases the disk contents of all the compute nodes' hard disks by running simple dd commands.

CAUTION: Make sure you back up the contents of your compute nodes, both local and attached disks, before using Disk Scrubber.

To start Disk Scrubber, select Tools→Disk Scrubber from the Cluster Test interface toolbar.

Disk Scrubber 39

Image 39

Contents HP Cluster Test Administration Guide January Contents Useful files and directories Utility commands Sample test outputDocumentation feedback Glossary Index CT Image using a network Varieties of Cluster TestCT Image RPM Running cluster tests Cluster Test GUIStarting Cluster Test Files generated by Cluster TestCluster Test GUI Running cluster tests Configuration settings Running tests in a batch Using scripts to run tests Running cluster tests CrissCross Test descriptionsNodes monitoring window Monitoring tests and viewing resultsTest output window Monitoring tests and viewing results Performance analysis Test report Checking the InfiniBand fabric Cluster Test toolbar menus Cluster Test toolbar menusAccelerator test GUI Starting accelerator testsFiles generated by accelerator test Running accelerator tests GPU detectionVerify Memory Test Sgemm Single Precision General Matrix Multiply TestDgemm Double Precision General Matrix Multiply Test BandWidth GPU Bandwidth TestNvidia Linpack Cuda Accelerated Linpack Benchmark Cluster Test procedure as recommended by HP Configuring Cluster Test when using RPMAdditional software Accelerator test procedure Cluster Test procedure as recommended by HP Cluster Test procedure # checkadm Cluster Test procedure Cluster Test procedure as recommended by HP Performance monitor utility Performance monitorPerformance Monitor toolbar menu Xperf utility Cluster Test tools Hardware InventoryFirmware Summary Server health check Excluding the head node from tests Disk Scrubber Cluster Test tools Running tests in parallel Creating and changing per node files An example per-node directoryAn example cloned per-node directory Nfs NFS performance tuningDetecting new hardware TroubleshootingCluster Test Troubleshooting Guide Troubleshooting Cluster TestContacting HP Support and other resourcesScope of this document Intended audienceWebsites New and changed information in this editionRelated information DocumentationCustomer self repair Typographic conventionsCustomer self repair Cluster Test Useful Files and Directories Useful files and directoriesAnalyze Utility commandsConrep Files generated by ibfabriccheck Inspectibfabric.pl Inspectibfabric.pl Utility commands Ipmitool Pdsh CrissCross Sample test outputSample test output Test4 Pallas Mpibyte Sample test output Stream Node24 Triad 3078.7949 3355 3488 3536 CPU Disk TestUTK LinpackPassed Passed Passed Documentation feedback CMU GlossaryIndex MPI Accelerator

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