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Results 1921 - 1930 of 2026

  1. KB1515 - Spurious interrupt messages

    Summary The kernel log may contain VSL driver messages similar to the following: Warning: Voltage 'aux' spurious intr. Affected Versions All VSL driver releases, all operating systems. Detailed...

  2. KB1204 - Monitoring Transfer Rates and Transfers per Second using iostat

    iostat monitors both transfer rates and transfers per second,commonly called IO's per second (IOPS). For example: # Monitor all block devices $ iostat -dk 1 # Monitor a single block device $ iostat...

  3. KB1197 - Filesystem Tuning

    Including enabling Trim (discard),and setting stride size and stride width when using RAID. XFS is currently the recommended filesystem. It can achieve up to 3x the performance of a tuned ext2/ext3...

  4. KB314 - ioTurbine defaults to 1GB of caching if not configured correctly

    Summary When configuring ioTurbine for a VM under the ioSphere VM Edition configuration tab, you can assign a Volume Filter, Disk Filter or File Filter shares. If you do not assign a share, ioTurbine...

  5. KB1232 - VM migration fails for actively caching guest

    A VM migration from host to host will fail for the following circumstances: ioTurbine software not installed on the destination host with caching device ioTurbine software is in an unconfigured state...

  6. KB883 - RHEL6 warn_slowpath Message During Device Attach

    Affected Configurations Product: VSL software, all devices Versions: All versions Platforms: Linux distributions Summary When attaching an ioMemory device under RHEL6, you may find log messages...

  7. KB1780 - PSOD on ESXi 6 with VSL 4.3.0

    Summary We have received reports of a “PSOD” (purple screen of death) while running the VSL 4.3.0 driver on ESXi 6, which has then correlated to devices being unable to recover in the field and...

  8. KB1268 - Verifying Linux System Performance

    The information has moved to the Peak Performance Guide article: KB1252 - Peak Performance Testing Procedure . Be sure to first follow the instructions in the KB1251 - Installing fio article. In...

  9. KB250 - Creating a RAID10 Array using the ioDrive on Linux

    How to create a RAID 10 array on Linux using the CLI,and how to make the mirror persistent. To create a RAID10 array on Linux using the ioDrive, enter the command: $ mdadm --create /dev/md0 -v...

  10. KB885 - kdump crashkernel requires additional memory for the ioMemory VSL Software

    Affected Configurations Product: VSL software, all devices Versions: All versions Platforms: Linux distributions Summary With the ioMemory VSL installed, kdump may fail to generate a complete dump...