Version 21 (modified by Christian Franke, 12 years ago) (diff)

Add note about option/device name for 3ware on Windows


Checking disks behind RAID controllers

RAID controllers typically simulate a (logical) disk for each array of (physical) disks to the OS. Access to SMART functionality relies on ATA or SCSI pass through I/O controls providing direct access to each physical disk. But the standard I/O controls available are usually not designed to make this distinction between logical and physical disks. Therefore, smartmontools has to use vendor specific I/O controls. Support for disks behind RAID controllers is highly dependent on both platform and controller type.

RAID-Controller Option/
Supported in OS
Linux FreeBSD MS-Windows NetBSD/
Solaris MacOS/
3ware SATA RAID controller -d 3ware,N Yes 1 Yes 2 Yes 3 ? ? ?
Areca SATA RAID controller -d areca,N Yes 4 No No ? ? ?
HighPoint RocketRAID SATA RAID controller -d hpt,L/M/N Yes 5 Yes 6 No ? ? ?
CCISS (HP/Compaq Smart Array Controller) -d cciss,N Yes 7 Yes No ? ? ?
LSI MegaRAID SAS RAID controller
Dell PERC 5/i,6/i controller
-d megaraid,N Yes 8 Yes 9 No ? ? ?
(Intel Rapid/Matrix Storage driver)
(device name)
? ? Yes 10 ? ? ?

See the notes below and the INSTALL file for information about kernel and driver requirements on your platform. Also consult the man pages for controller specific smartmontools options or directives.


1. 3ware RAID controllers are supported on Linux since smartmontools release 5.1-18. Support for char devices /dev/tw* was added in release 5.33.
2. 3ware support on FreeBSD is available since release 5.33, multiple controller and char device support was added in release 5.36.
3. 3ware 9000 series only (added in release 5.37), requires Windows driver 9.4.0 or later. For older controllers, smartctl and smartd provide limited SMART support through tw_cli tool, see man page. Initially the SMART support was added only to the 32-bit Windows driver. According to a report on smartmontools-support mailing list SMART access works now on 64-bit Windows 7. Please note that the option -d 3ware,N is not supported/required on Windows, add the drive number to the device name instead (/dev/sdX,N).
4. Areca support on Linux added in release 5.39. The Areca controller must have firmware version 1.46 or later. Earlier versions will not return SMART information but will instead produce (harmless) SCSI error messages. Areca SAS controllers (1680 series) are not supported, see ticket #21.
5. HighPoint RocketRAID support for Linux was added in release 5.37.
6. HighPoint RocketRAID support for FreeBSD was added in release 5.39.
7. CCISS (Compaq Smart Array Controller) support for Linux was added in release 5.37.
8. Support for LSI MegaRAID controller on Linux was added in release 5.39.
9. Support of LSI MegaRaid on FreeBSD is implemented with mfip.ko module and /dev/passX devices.
10. Intel ICHxR RAID support for Windows was added in r3253 and will be included in release 5.41.