SR1500 + 5000PAL + SAS backplane - no RAID support

supportsobaka at mail.ru supportsobaka at mail.ru
Mon Oct 23 07:12:29 PDT 2006


-----Original Message-----
#define MPI_EVENT_SAS_PHY_LINK_STATUS       (0x00000012)
#define MPI_EVENT_SAS_DISCOVERY_ERROR       (0x00000013)
#define MPI_EVENT_IR_RESYNC_UPDATE          (0x00000014)
#define MPI_EVENT_IR2                       (0x00000015)
#define MPI_EVENT_SAS_DISCOVERY             (0x00000016)

Event 0x16 just means that the card is probing for devices attached to
the PHY's 
In your case 0x12 means a device have been seen on a PHY

P.S. If you get time and want to do me a favor, configure 2 drives on
the controller in a RAID-1 configuration.
Then do a disk test on the RAID-1 volume, say with iozone or any other
method, and tell me your performance.

I get slow RAID-1 performance, still cannot figure this out, ~5
Mbytse/sec instead of ~ 30 Mbytes/sec with no volume.
With NCQ enabled it goes up to 15, but it' still not 30.

I can get faster RAID-1 performance by implementing this in software
doing parallel writes.

Johan
-----Original Message-----

How I can test it...
First of all FreeBSD should see RAID, but it only see separated HDD (da*)
This is the problem that I described



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