possible issues with Dell/Perc5 raid



Hi there,

We just purchased a Dell 860 with these specifics:
- dual core pentium 915, 2.8 GHz, 800MHz FSB
- 2x512 MB 533 MHz DDR2 RAM
- Dell's SAS/SATA drive controller(which is actually an LSILogic)
- their 5IR PCI-Express internal RAID controller
- a pair of 250 GB SATA II's set up RAID 1

After installing 6.2-RELEASE on the system I noticed, while pulling the ports
collection off the CDROM, that the speed to the drives started out just fine
but long before the ports collection was installed the transfer rate was down
to ~35kB/s. Huh. So I started paying closer attention. I installed a couple
of ports and every time there was anything but miniscule data being
transferred to/from disk the transfer rate bottomed out. I installed the
blogbench port and it confirmed the I/O as tremendously sluggish. I've
attached the output of the blogbench runs. The first is from an old 700 MHz
pc, Acer M25C mobo, with 1 IDE drive just for comparison. The second data set
is the new Dell. I've also attached the output of dmesg. Everything looks
fine except for the mpt lines. Would those be telling of something amiss or
are they innocuous barks?

I understand that RAID 1 is not the fastest but I certainly expected it to be
faster than it is, esp. with hw RAID. Are my expectations too high and this
is normal?

--
Randy (schulra@xxxxxxxxxxx) 765.983.1283 <*>

Rain puts a hole in stone because of its constancy, not its force.
- H. Joseph Gerberkappia# /usr/local/bin/blogbench -d /var/tmp

Frequency = 10 secs
Scratch dir = [/var/tmp]
Spawning 3 writers...
Spawning 1 rewriters...
Spawning 5 commenters...
Spawning 100 readers...
Benchmarking for 30 iterations.
The test will run during 5 minutes.

Nb blogs R articles W articles R pictures W pictures R comments W comments
4 22162 331 12899 371 8508 1096
7 27639 150 23482 231 13705 549
11 28428 166 23500 184 13159 529
13 30987 139 24113 203 13131 509
15 26313 124 22269 216 13258 470
18 26216 209 21735 117 13405 466
21 27787 195 21211 154 16107 505
25 24355 204 18644 119 13788 472
25 23871 158 16952 174 12002 421
29 25030 210 18663 122 12850 461
31 20698 132 14991 170 10809 421
32 22147 172 15772 139 10064 420
35 23015 170 17037 146 13516 432
37 21373 208 15879 69 10742 384
39 19989 207 13771 92 10204 391
40 20928 113 14695 182 12331 419
43 19017 145 13707 137 10117 377
45 19723 121 14704 148 10212 359
46 21868 239 15962 57 10034 393
49 20804 156 14306 108 8580 354
50 19234 86 13484 166 9285 345
52 21064 145 14912 129 11138 369
55 19927 184 14679 81 11360 353
56 18620 161 13516 101 9816 342
59 20155 112 14120 141 10450 344
61 18869 173 12958 78 8636 343
63 18008 151 12693 99 8868 326
66 19255 109 13548 143 9375 333
66 18968 130 12749 126 8524 342
68 17107 51 12086 165 8256 317

Final score for writes: 68
Final score for reads : 13925



Root Dude ? blogbench -d /var/tmp

Frequency = 10 secs
Scratch dir = [/var/tmp]
Spawning 3 writers...
Spawning 1 rewriters...
Spawning 5 commenters...
Spawning 100 readers...
Benchmarking for 30 iterations.
The test will run during 5 minutes.

Nb blogs R articles W articles R pictures W pictures R comments W comments
0 1505 101 0 16 0 181
0 2163 66 37 35 1940 142
0 1671 42 127 33 1304 109
1 2228 11 1008 84 2482 144
1 2027 34 1173 61 3059 145
1 1407 22 1291 32 628 70
3 3306 71 3330 39 1323 156
4 3080 91 3058 22 2152 149
4 1453 36 1306 16 596 64
5 3190 56 2595 50 1423 144
6 3299 50 2073 59 834 134
6 1625 23 978 33 488 68
6 2954 35 2032 73 1065 142
8 3157 36 2198 78 1307 140
9 1124 19 767 24 592 56
9 2837 45 2093 64 1442 142
11 2798 50 2124 63 1753 143
12 1395 30 1181 23 776 69
13 3312 87 2696 24 1283 143
13 3105 102 2517 12 1546 146
13 1670 43 1129 22 1266 80
14 2248 32 1594 63 1900 119
16 2876 78 2268 22 1608 136
16 1797 52 1244 16 1168 89
16 2142 48 1466 35 1649 106
17 2903 45 2123 58 1406 131
18 2096 22 1536 56 1096 97
19 2091 30 1310 44 1076 100
20 3152 41 2117 68 1127 138
21 2510 52 1578 34 1294 115

Final score for writes: 21
Final score for reads : 2442


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FreeBSD 6.2-STABLE #0: Mon May 7 20:16:35 EDT 2007
root@xxxxxxxxxxxxxxxx:/usr/obj/usr/src/sys/maxu.070507
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) D CPU 2.80GHz (2800.11-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf64 Stepping = 4
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36
,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xe49d<SSE3,RSVD2,MON,DS_CPL,EST,CNTX-ID,CX16,<b14>,<b15>>
AMD Features=0x20100000<NX,LM>
AMD Features2=0x1<LAHF>
Cores per package: 2
real memory = 1073479680 (1023 MB)
avail memory = 1041326080 (993 MB)
ACPI APIC Table: <DELL PE_SC3 >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
ioapic0: Changing APIC ID to 2
ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <DELL PE_SC3> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <PCI-PCI bridge> at device 0.0 on pci1
pci2: <PCI bus> on pcib2
mpt0: <LSILogic SAS/SATA Adapter> port 0xec00-0xecff mem 0xfeafc000-0xfeafffff,0xfeae0000-0xf
eaeffff irq 16 at device 8.0 on pci2
mpt0: [GIANT-LOCKED]
mpt0: MPI Version=1.5.13.0
mpt0: mpt_cam_event: 0x16
mpt0: Unhandled Event Notify Frame. Event 0x16 (ACK not required).
mpt0: mpt_cam_event: 0x12
mpt0: Unhandled Event Notify Frame. Event 0x12 (ACK not required).
mpt0: mpt_cam_event: 0x12
mpt0: Unhandled Event Notify Frame. Event 0x12 (ACK not required).
mpt0: mpt_cam_event: 0x16
mpt0: Unhandled Event Notify Frame. Event 0x16 (ACK not required).
pcib3: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 28.4 on pci0
pci4: <ACPI PCI bus> on pcib4
bge0: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xfe6f0000-0xfe6fffff irq 16 at device 0.0
on pci4
miibus0: <MII bus> on bge0
brgphy0: <BCM5750 10/100/1000baseTX PHY> on miibus0
brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge0: Ethernet address: 00:18:8b:f8:e6:8c
pcib5: <ACPI PCI-PCI bridge> at device 28.5 on pci0
pci5: <ACPI PCI bus> on pcib5
bge1: <Broadcom BCM5750 B1, ASIC rev. 0x4101> mem 0xfe4f0000-0xfe4fffff irq 17 at device 0.0
on pci5
miibus1: <MII bus> on bge1
brgphy1: <BCM5750 10/100/1000baseTX PHY> on miibus1
brgphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge1: Ethernet address: 00:18:8b:f8:e6:8d
pcib6: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci6: <ACPI PCI bus> on pcib6
pci6: <display, VGA> at device 5.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH7 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc
0f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 2000
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc8fff,0xc9000-0xc9fff,0xd0000-0xd17ff,0xec000-0xef
fff on isa0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
acd0: CDROM <HL-DT-ST GCR-8240N/1.10> at ata0-master UDMA33
SMP: AP CPU #1 Launched!
da0 at mpt0 bus 0 target 0 lun 0
da0: <Dell VIRTUAL DISK 1028> Fixed Direct Access SCSI-5 device
da0: 300.000MB/s transfers, Tagged Queueing Enabled
da0: 237464MB (486326272 512 byte sectors: 255H 63S/T 30272C)
Trying to mount root from ufs:/dev/da0s1a
bge0: link state changed to UP

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