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all suggestions without any warranty Controller Avoid expensive Hardware-Raid controller or you will loose a lot of ZFS Advantages. Prefer cheap JBOD (just a bunch of disc) Controller. Spend your money for CPU-Power and especially for (best ECC) RAM Mainboard Sata use AHCI-Mode (Hotplug) Mainboard with ICH10 Chipset (max 6x SATA SAS-I/Sata Controller (no longer suggested, max 2 TB disks) LSI 1068E Chipset /3 Gbit: example: Intel SASUC8I see http://www.intel.com/products/server/raid-controllers/SASUC8I/SASUC8I-overview.htm SuperMicro AOC-USASLP-L8i, 8 Channel intern, IT-Mode Firmware, ca 120 Euro, ("left" mounted UIO-Modell !!!) or LSI Models see also http://www.servethehome.com/intel-sasuc8i-lsi-lsi-sas3081er-lsi-1068e-based-raid-controller-review/ RAID Modes of USALP8i (see forums.overclockers.com) There are three RAID modes that are supported by the AOC-USAS-L8i Add-on Card: SAS-2/ Sata 6G Controller (Disks > 2 TB, use them with expanders) best are HBA with LSI 2008 chipset in IT mode http://www.lsi.com/products/storagecomponents/Pages/HBAs.aspx LSI 9211-8i SuperMicro AOC-USAS2-L8e (wrong side mounted) • IT Mode (Initiator and Target Mode): This is the default mode for the AOC-USAS-L8i Add-on Card. The maximum support for this mode is up to 122 hard disk drives under expander topology. This mode does not support hardware RAID. (only jbod => this is best for zfs, use it!!) If nor set, This mode requires an IT mode firmware flash to the BIOS and an IT mode driver installation to the OS. (download firmware from supermicro) see also: http://www.servethehome.com/flashing-intel-sasuc8i-lsi-firmware-guide/ • IR Mode (Integrated RAID Mode): In Integrated Raid™ mode the integrated ARM chip on the AOC-USAS-L8i Add-on Card creates Integrated Mirroring™ (IM, RAID 1), Integrated Mirroring Enhanced (IME, RAID 1E) and Integrated Striping (IS, RAID 0) through the chipset"s BIOS and the system"s OS. The maximum support for this IR mode is up to 63 hard disk drives under an expander topology. do not use with zfs! • SR (Software RAID): In this mode you must buy the I-Button feature from SuperMicro to enable RAID level 5 use. First you must create RAID level 0, 1, 5 or 10 from the MegaRAID BIOS Configuration Utility in order for the OS to see the hard disk drives (this can be done via MSM too, so necessary need to be done in MegaRAID Configuration Utility). The maximum support for this RAID mode is up to eight (8) hard disk drives under expander topology. This RAID mode requires an SR mode firmware flash to the BIOS and an SR mode driver installation to the OS. This mode also requires that the SWR5 jumper on the AOC-USAS-L8i Add-on Card is enabled (see Section 2-2: "Front Jumper Locations and Pin Definitions" on page 2-3 for details). NOTE: MegaRAID Storage Manager (MSM) software version 2.60 or later supports both SR and IR Mode in both Windows and Linux. MSM does not support IT Mode since IT is only an initiator and target mode, and therefore it does not required storage management utility. do not use with zfs! SAS-II Controller / 6Gb LSI 2008 Chipset (HBA, IT mode) LSI SAS 9211-8i (mostly use this one!) SuperMicro AOC-USAS2-L8e (wrong side mounted) PCI-X/ SATA Controller (obsolet) SuperMicro AOC-SAT2-MV8 8 x SATA Ethernet Controller 1Gb: Intel 10Gb: CX4 with Intel Chipsatz 82598EB (z.B. von SuperMicro ca 380 Euro) + 10Gb Switch ex HP Procurve 2910
napp-it 20.04.2012