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Hw raid10 hdparm

post #1 of 4
Thread Starter 
Hi guys, I have a server in a DC with 8[eight] x 1[one] TB HDD in a RAID10 configuration.
That's 8 spindles.

When I run hdparm -tT [harddrive]

/dev/cciss/c0d0p1:
Timing cached reads: 20308 MB in 1.99 seconds = 10213.31 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
Timing buffered disk reads: 300 MB in 3.00 seconds = 99.99 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device

Does that sound about right? 100 MB/sec? That looks pretty low for buffered reads on 8 spindles.
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post #2 of 4
Really depends on the drives you're running...could you post the make, speed and cache of the drives you have in RAID 10? After that Post a HDTune benchmark here.
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by Razultull View Post
Really depends on the drives you're running...could you post the make, speed and cache of the drives you have in RAID 10? After that Post a HDTune benchmark here.
The drives are 7200RPM 32MB cache drives I believe. I can't post HDTune as these are running CentOS in a DC about 2 continents away from me.
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post #4 of 4
Is it always 99.99MB/sec? Always 300MB in 3.00 seconds?

Might be a benchmark glitch.
     
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CPUMotherboardGraphicsRAM
FX-8350 @ 4.6ghz 1.425v Sabertooth 990FX Zotac GTX 1070 Amp! 32GB (4x8GB) Kingston Fury 1866mhz CL10 1T 1.5v 
Hard DriveHard DriveHard DriveHard Drive
Hitachi 2TB - HDS723020BLA64 Crucial M500 960GB - CT960M500SSD1 WD 4TB Black - WD4001FAEX WD 4TB Black - WD4001FAEX 
Hard DriveHard DriveHard DriveHard Drive
Seagate 2TB - ST2000DM001 WD 640GB Black - WD6401AALS Seagate 6TB - ST6000DM001 Micron M500 - MTFDDAK480MAV 
Optical DriveOptical DriveOptical DriveOptical Drive
Pioneer DVR-115DBK Samsung SH-S243D/BEBE LG GH22NS90 Lite-On EBAU108 External DVD 
CoolingCoolingCoolingOS
Noctua NH-D15 Fractal Design 140mm Fan - FD-FAN-140 Fractal Design 120mm Fan - FD-FAN-120 Windows 7 
OSMonitorMonitorKeyboard
Ubuntu 14.04 LTS Samsung 2343BWX 23" (2048x1152) BenQ GW2765HT 27" IPS LCD Monitor (2560x1440) Genius Keyboard KB-G235 PA 
PowerCaseMouseMouse Pad
Seasonic Platinum 1000w PSU - SS-1000XP Fractal Design Define R5 Steelseries Rival 6500 dcpi Mousepad + Desk 
AudioAudioOtherOther
Onboard Realtek® ALC 892 Cyber Acoustics CA-2992 2.0 Speakers Razer Krait 1600 DPI nGear G-C1601 Card Reader 
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Pisen Card Reader Gigabyte M7 Thor 
CPUMotherboardGraphicsRAM
VIA Eden C7 1200mhz Jetway J7F4K1G2ES-LF VIA Onboard 512MB PC2-4200 
Hard DriveOptical DriveCoolingOS
A-Data FlashDrive None Fanless Linux 
MonitorKeyboardPowerCase
Headless None 65w Power Brick Antec ISK300-65 
MouseAudio
None Onboard VIA 
CPUMotherboardGraphicsRAM
Barton XP-M 2400+ FJQ4C Asus A7N8X-E Deluxe 256MB BFG 7800GS OC 2x512MB Samsung PC3200 
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