LSI FUSION-MPT DRIVER
These stripes are interleaved round-robin, so that the combined storage space is composed alternately of stripes from each disk. A proprietary management tool also exists, see below. However don’t expected verbose output. The firmware polls each physical disk in the volume at regular intervals. This tool comes from LSI. Even it’s not full of features theses card appear to work fine and are supported by an opensource Linux driver.
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The IS feature writes data across multiple disks instead of onto one disk. Linux kernel drivers 3. Many thanks to them for good work! 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.
These stripes are interleaved round-robin, so that the combined storage space is composed alternately of stripes from each disk. However, there is no data redundancy; therefore, if one disk fusio-nmpt, that data is lost. Management and reporting tools 3. The primary advantage of IS is speed, because it transfers data to or from multiple disks at once.
Supermicro LSI SAS3008 HBA Review
The firmware supports metadata, which describes the IS logical drive configuration stored on each member disk. An opensource reporting tool named mpt-status has been developped.
We experienced several disks failure on MPT SAS controllers and mpt-status always reported the failure and status changes. I haven’t use it much, so here is a quick example of what it can do:.
Download in other formats: When the firmware is initialized, each member disk is queried to read the stored metadata to verify the configuration. 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:.
It will log a ligne to syslog when something failed and will send you a mail. Disk write caching is enabled lai default on all IS volumes. This includes reading the Fusion-MPT configuration to gain access to the parameters that are used to define behavior between the SAS controller and the devices connected to it.
Note – All physical disks in a volume must be connected to the same SAS controller. It includes these sections:.
The lsu polls each physical disk in the volume at regular intervals. In fact, I must admit all my “something-status” packages for others kind of cards are based on this work. Despite it seems that no real upstream development exists for this tool, it works fine and is reliable.
Overview of Integrated Striping
Powered by Trac 1. The packages comes with an initscript that periodic run mpt-status to check status.
Overview of Integrated Striping. A single IS logical drive may be configured as the fhsion-mpt disk or as a data disk. IS provides better performance and more capacity than individual disks, without burdening the host CPU.
T and such 4.
BMC-IT – Linux – RAID Monitor – LSI Fusion-MPT SAS
On Debian based system, simply run:. In most case, your controller ID will be 0. Until arrays are healthy again a reminder will be sent each 2 hours. Its sources for Linux systems are available but the license is not specified.
Hosting sponsored by http: In general, striping is transparent to the BIOS, the drivers, lso the operating system.