June 15, 201214 yr I just ran a full parity check on my 5.0 rc4 system with simple features installed. The Tower has 5 2TB Hitachi Deskstar data disks and 1 2TB Hitachi Deskstar parity disk. It took 5 hours and 40 minutes with an average speed of 98mb/s. This compares to about 16 hours on my prior 4.7 system.
June 15, 201214 yr 5 hours 40 minutes is very respectable. My times are similar. I assume that something else (disk interface hardware?) changed from your 4.7 build.
June 15, 201214 yr Author No, nothing changed hardware wise. Just switched from 4.7 to 5.0 and installed SimpleFeatures after removing unMenu.
June 15, 201214 yr The increase in speed may be due to a newer disk interface driver in the newer Linux kernel. Clearly it's now working well.
June 15, 201214 yr Do you guys adjust the "tunable" disk settings to get better performance? And if so what numbers are used?
June 15, 201214 yr Author No I did not tune the unit in any way. It is unRaid 5.0 RC4 out of the box. My home is 100 MB/s wired for all inter computer communications and wi-fi for all hand held devices. I wouldn't even know where to "Tune" the disks as I am weak in Linux. The hardware is as follows: Motherboard Gigabyte GA-MA785GM-US2H Processor AMD Athlon II x2 240 Memory Kingston DDR2 4x 1Gig 800 mhz SAS/SATA HBA SuperMicro AOC SASLP MV8 SAS-SAS Cables 3 Ware SFF-8087 to SFF-8087 System Case Chenbro 3012 Power Supply Zippy R2W6500P SAS-SATA Cable SFF-8087- 4x SATA SATA Drives (9) Hitachi Deskstar 2TB 2700 RPM (parity, 5 in array, 3 pre cleared installed but not in Array) The mobo has 1 PCIe x16, 1 PCIe x1, 2 PCI, LAN O/B, Video O/B, 1 IDE, 5 SATA, 1 eSATA, 6 USB The system case is 3Ux26" with 12 Hot Swap drive bays, internal Space for 2 Drives (I Sata, 1 IDE), 1 slim CD ROM The PSU is 2U/3U Redundant @ 500 Watts per unit. All is now assembeled and running with 6 2TB HDD's (5 in the array and one Parity). Four of the drives in the array are connected to the motherboard Sata ports and the remainder are connected to the SASLP MVA HBA.All internal cabling (controllers to drives) is in place. The server rack has a 1500 VA UPS. With all the equipment in the rack and auxiliary home automation devices it is loaded at 54% of capacity. Half of the house has a power buss with a 15KW standby generator. Naturally the server room is powered from that buss. The generator kicks in after 20 seconds of utility power loss and the UPS starts to charge again. I live in Central FL USA so power outages are quite prevalent. My only issues have to do with wake up after sleep. The system sleeps and wakes up from a magic packet or keyboard touch. The Monitor does not come on, and I am not sure if the KBD is working, LAN is working, but can not access from browser. Any advice appreciated, but I suspect a MoBo issue
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