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    SC846 with consumer motherboard

    Hi I would like to collect inside this thread list of complatible consumer boards with SM PSU/PDU. If someone successfully built such configuration please post. There are tons of topics over the internet about weird incompatibility issue between SM power supply PSU/power distributor board PDB...
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    Asus p8b ws won't boot with supermicro psu

    Hi I have strange problem. I use Asus P8B WS motherboard in Supermicro Chassis. By now I had Corsair 1000W PSU. I decided to change it to PWS-920P-SQ. But Motherboard wont boot. DIAG_CPU led is always on. Of cource I connected 8 pin cpu cable. I tested another Supermicro PSU and same result. I...
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    2 SAS Expander issue

    Hi I have MegaRAID LSI 9265-8i card and two SAS Expanders IBM (Lenovo) 03X3834 and 19 3TB disks. Question is how to properly connect two SAS Expanders to this MegaRAID card? If I just connect one cable from MegaRAID to first SAS Expander and second cable to second SAS Expander every time I boot...
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    Replacing drive starts automatically

    Hi I have MegaRAID LSI 9265-8i with few 3TB SATA drives running RAID6. And I have a strange problem. When I connect, let's say, drive A to replace drive B, replacing drive starts automatically but it replaces other random drive lets say C. Replace drive operation automatically started on PD...
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    Megaraid IBM M5016 Power on, reset, or bus device reset occurred / Diagnostics failed for PD/ PD error

    Hi, One of my RAID6 array disks (WD30EFRX) went offline because of "Power on, reset, or bus device reset occurred / Diagnostics failed for PD / PD Error". I checked media errors, SMART and everything looks fine. I made this disk online again imported foreign configuration, and for while...
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    LSI MegaRAID 9265-8i Enclosure/Backplane problem

    Hi I use MegaRAID 9265-8i with 24bay Supermicro chassis and IBM 46M0997 SAS Expander. All works smoothly however one thing drives me crazy. Why all disks have same Slot Number - 0? sudo megacli -PDList -a0 | grep -e '^Enclosure Device ID:' -e '^Slot Number:' Enclosure Device ID: 22 Slot...
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    Poor IPoIB performance on two Mellanox MHGH28-XTC ConnectX VPI Dual-Port 20Gb/s

    Hi I set up new fileserver on Gentoo linux with Supermicro case, Xeon, 12GB ECC RAM and 21TB 9265 RAID6 (read/write ~800MB/s). Supermicro SC846 24x SATA Storage Server 9650SE-24ML SAS846A 2x PWS-1K21P-1R | eBay I figured out infiniband being best method to connect it to my workstation running...