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= LSI Fusion MPT SAS =

[[Image(wiki:LSI:logo_lsi.gif)]]
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= 1. Card information =

The FusionMPT SAS is a low-end card from LSI.
[[BR]]It only supports RAID0 and RAID1 an can usually be found in many 1U rackmount servers which have only two disks drives.
[[BR]]Even it's not full of features theses card appear to work fine and are supported by an '''opensource Linux driver'''.
[[BR]] An '''opensource monitoring software''' exists, however there is '''no known management tool''', even proprietary.

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= 2. Linux kernel drivers =

|| Driver || Supported cards ||
|| mptsas || LSI FusionMPT SAS cards ||
|| mptctl || Driver to handle monitoring IOCTLs ||

There are many more mpt* drivers in Linux kernel.
[[BR]]Somes seems to be required dependencies. Others looks like being real driver but we haven't used them yet.

''mptsas'' has been part of the mainstream Linux kernel for a while and should be '''available''' in all '''current Linux distributions'''.

Some ''lspci -nn'' output examples:

  * 02:08.0 SCSI storage controller ![0100]: LSI Logic / Symbios Logic SAS1068 PCI-X Fusion-MPT SAS ![1000:0054] (rev 01)
  * 07:00.0 SCSI storage controller ![0100]: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS ![1000:0058] (rev 08)

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= 3. Management and reporting tools =

There are '''no management tool'''. LSI doesn't provide any proprietary utility for FusionMPT's cards.
[[BR]]However an '''opensource reporting tool''' named ''mpt-status'' has been developped.

== 3.1. mpt-status ==

=== 3.1.1. Quickstart and output example ===

Probe controllers IDs:[[BR]]
{{{
server:~# mpt-status -p
Checking for SCSI ID:0
Found SCSI id=0, use ''mpt-status -i 0`` to get more information.
}}}

Get status of controller "0":[[BR]]
{{{
server:~# mpt-status -i 0
ioc0 vol_id 0 type IM, 2 phy, 73 GB, state OPTIMAL, flags ENABLED
ioc0 phy 1 scsi_id 32 ATA      ST3808110AS      J   , 74 GB, state ONLINE, flags NONE
ioc0 phy 0 scsi_id 1 ATA      ST3808110AS      J   , 74 GB, state ONLINE, flags NONE
}}}

In most case, your controller ID will be 0. Running ''mpt-status'' '''without any parameters''' will give you the same output example as above.

You '''MUST''' have '''mptctl''' kernel module '''loaded''' to monitor your RAID HBAs.[[BR]]
Load it by hand for the first time and add it to '''/etc/modules''' for next reboots:[[BR]]
{{{
modprobe mptctl
echo mptctl >> /etc/modules
}}}

=== 3.1.2. My opinion about mpt-status ===

Despite it seems that '''no real upstream development''' exists for this tool, it works '''fine''' and is '''reliable'''.
[[BR]]We experienced several disks failure on MPT SAS controllers and mpt-status always reported the failure and status changes. [[BR]]However don't expected verbose output.

Homepage: http://www.drugphish.ch/~ratz/mpt-status/

=== 3.1.3. Reporting with mpt-status ===

''mpt-status'' has been greatly integrated to Debian by '''Petter Reinholdtsen and Steffen Joeris'''.
[[BR]]Many thanks to them for good work !

The packages comes with an initscript that '''periodic''' run mpt-status to '''check status'''.
[[BR]]It keeps a file with latest status and thus is able to detect RAID '''status changes and/or brokeness'''.
[[BR]]It will log a ligne to '''syslog''' when something failed and will send you a '''mail'''.
[[BR]]Until arrays are healthy again a '''reminder''' will be sent each 2 hours.

In fact, I must admit all my ''"something-status"'' packages for others kind of cards are based on this work.

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= 4. BIOS upgrade from a Linux system =

Sorry, we don't have any informations about this.

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