LSI FUSION-MPT DRIVER
We experienced several disks failure on MPT SAS controllers and mpt-status always reported the failure and status changes. However, there is no data redundancy; therefore, if one disk fails, that data is lost. The firmware polls each physical disk in the volume at regular intervals. The primary advantage of IS is speed, because it transfers data to or from multiple disks at once. IS provides better performance and more capacity than individual disks, without burdening the host CPU. The packages comes with an initscript that periodic run mpt-status to check status. A proprietary management tool also exists, see below.
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You need to make sure SCSI generic device driver is loaded and will be loaded at boot. Until arrays are healthy again a reminder will be sent each 2 hours. In most case, your controller ID will be 0.
The firmware supports metadata, fusin-mpt describes the IS logical drive configuration stored on each member disk. This tool comes from LSI. An opensource monitoring software exists, as well as a proprietary management tool called lsiutil. A single IS logical drive may be configured as the boot disk or as a data disk. Management and reporting tools 3.
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Linux kernel drivers 3. BIOS upgrade from a Linux system. Note – All physical disks in a volume must be connected to the same SAS controller. Overview of Integrated Striping. In general, striping is transparent to the BIOS, the drivers, and the operating system.
Its sources for Linux systems are available but the license is not specified. Disk write caching is enabled by default on all IS volumes. On Debian based system, simply run:. Running mpt-status without any parameters will give you the same output example as above. We experienced rusion-mpt disks failure on MPT SAS controllers and mpt-status always reported the failure and status changes. You can now try to run smartctl against one of the scsi generic devices you will have to figure out by yourself which one to use:.
Others looks like being real driver but we haven’t used them yet. When the system reaches the end of the disk list, it continues writing data at the next available segment of disk 1. An opensource reporting tool named mpt-status has been developped.
T and such 4. Download in other formats: Lei stripes fusikn-mpt interleaved round-robin, so that the combined storage space is composed alternately of stripes from each disk.
Despite it seems that no real upstream development exists fudion-mpt this tool, it works fine and is reliable. However don’t expected verbose output. However, there is no data redundancy; therefore, if one disk fails, that data is lost.
I haven’t use it much, so here is a quick example of what it can do:. The LSI Integrated Striping IS feature is useful for applications that require fusion-mpr faster performance and increased storage capacity of striping. Powered by Trac 1.
When the firmware is initialized, each member disk is queried to read the stored metadata to verify the configuration. In fact, I must admit all my “something-status” packages for others kind of cards are based on this work.
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The usable disk space for each IS member disk is adjusted down when the configuration is created, in order to leave room for this data. A proprietary management tool also exists, see below.
The primary advantage of IS is speed, because it transfers data to or from multiple disks at once.
IS provides better performance and more capacity than individual disks, without burdening the host CPU.