Good day.
Just one more happy unraid (4.5.6) on microserver user.
Made some upgrade: added 4Gb memory, attached APC UPS, HP DeskJet printer and sold 160Gb original disk
Got 4 hdd installed:
2Tb Seagate 7200 RPM for parity
2Tb, 1Tb, 750Gb WD green for data.
Parity check goes at 70 Mbytes/sec.
Network (samba) data upload to the servers goes at about 20Mbytes/sec.
Now trying to add fifth hdd - 640Gb WD AAKS to the ODD sata port.
This port is actually PATA-SATA bridge.
atiixp 0000:00:14.1: IDE controller (0x1002:0x439c rev 0x40)
ATIIXP_IDE 0000:00:14.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
atiixp 0000:00:14.1: not 100%% native mode: will probe irqs later
ide0: BM-DMA at 0xff00-0xff07
ide1: BM-DMA at 0xff08-0xff0f
Probing IDE interface ide0...
...
hdb: WDC WD6400AAKS-00A7B0, ATA DISK drive
hdb: host max PIO4 wanted PIO255(auto-tune) selected PIO4
hdb: UDMA/100 mode selected
..
hdb: max request size: 512KiB
hdb: Host Protected Area detected.
^Icurrent capacity is 1250261615 sectors (640133 MB)
^Inative capacity is 1250263728 sectors (640135 MB)
hdb: 1250261615 sectors (640133 MB) w/16384KiB Cache, CHS=65535/255/63
hdb: cache flushes supported
I started preclear and read was Ok - around 95Mbytes/sec
But zeroing is done at only 9Mbytes/sec ! No errors in syslog.
Please, can someone confirm normal write speeds on ODD port ?
Maybe the problem is hdd itself. Or I have to buy pci-e sata controller to add more disks.
And the best solution would be some tweak in atiixp driver..
Thanks, Evgeny
Model=WDC WD6400AAKS-00A7B0, FwRev=01.03B01, SerialNo=WD-WCASY0012037
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1250261615
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
AdvancedPM=no WriteCache=disabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7