Hello,
I've recently acquired a Promise VTrak 8110 (3x250Gb in RAID5) with an
LSI 53c1030 card. The configuration was tested on a desktop machine (AMD
2500+, standard 32/33 PCI) and reached about 30-40MB/sec. I installed
the card into a Sun X4100 (4 CPU, 4Gb mem, 64/133 PCI-X) with the
storage behind it, and got surprised that the maximum speed of the card
in the box topped at 3-3.5MB/sec, with a load of 5, vmstat shows a
constant 50% iowait, filesystem is ext3, some debug info is below. It
might be interesting that the box has an LSI SAS1064 controller onboard.
Does anyone have an idea what am I doing wrong?
# lspci -vvv
0000:06:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 08)
Subsystem: LSI Logic / Symbios Logic: Unknown device 1060
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (4000ns min, 1500ns max), Cache Line Size: 0x10 (64
bytes)
Interrupt: pin A routed to IRQ 209
Region 0: I/O ports at c800 [size=256]
Region 1: Memory at fe8e0000 (64-bit, non-prefetchable) [size=128K]
Region 3: Memory at fe8c0000 (64-bit, non-prefetchable) [size=128K]
Expansion ROM at fe400000 [disabled] [size=4M]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [68] PCI-X non-bridge device.
Command: DPERE- ERO- RBC=0 OST=4
Status: Bus=6 Dev=1 Func=0 64bit+ 133MHz+ SCD- USC-,
DC=simple, DMMRBC=2, DMOST=4, DMCRS=1, RSCEM-
# uname -a
Linux ivymike 2.6.16.16-grsec #1 SMP Tue Jun 27 19:01:53 CEST 2006
x86_64 GNU/Linux
# cat /proc/scsi/mptspi/1
ioc1: LSI53C1030, FwRev=01030f00h, Ports=1, MaxQ=222
Regards,
-w-
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