Data transfer en speed test

Dear all,
We are currently examining the location of a new server for BI. In order to do so, we want to know how much data is currently transferred from R/3 to BW, and also how much data is transferred when calling up a query.
We want both Europe and America to be able to have a good performance when reporting, and in the off-hours when transferring data from R/3 to BI.
Does anyone know if there are any tools in SAP to see how much data is transferred and how look in took, for front-end as well as back-end.
Best regards,
Almar van Pel

Hi,
You are suggesting that by doing the following formula:
Message RSM2 852 (data save in PSA started)
minus
Message R3 402 Information has been derived from data extraction
gives me the exact time of data tranfer from system A(R/3) to system B(BI).
I'm having serious doubts here, as I'm pretty sure there is overhead in the time calculation. (I don't want a $$ decision based on incorrect interpreted or incorrect infomation)
Though, I'm interested in the way you calculate the amount of data. In this case there are a lot of data transfers a day where the amount of records is much lower then the package, where I'm still not sure how to calculate the kb's from package size. How to calculate the size of these packages?
Regards,
Almar van Pel

Similar Messages

Time Capsule only runs with 1,1Mbit up/down during data transfer, internet speed is ok, TC is used to extend an existing network

Hello Everyone,
I have a new 2TB Time Capsule running with a MacBook Air. I want to use the TC to access data (Aperture library, iTunes library, other Files) and to backup my MacBook Air via Time Machine. I set it up, integrated the TC in my Network (FritzBox) by choosing "extend existing network" and it works. BUT only with 1.1Mbit/second while writing or reading Data to/from it. Internet speed is very good, like it was before. While the 1.1Mbit/second seem to be ok with Aperture and iTunes (streaming music and movies) it is still painfully slow and I'm not realy happy with that
I've read that:
The 1.1Mbit problem is pretty common when Time Capsule is integrated and used to extend a network (bridge modus), it also looses all ethernet connectivity then (that woul explain why connecting it by ethernet didn't help during initial setup and data transfer)
Is there a solution besides ditching the Fritzbox and using the TC to build the network? Because basicly I still need the Fritzbox for its DECT features.
Thank you for any help in advance and have a nice day,
Olli

You have double hop wireless with this setup..
You should bridge the TC.. that is router bridge not wireless bridge, and plug the TC into the Frizyboy by ethernet.
Then you can setup the TC wireless to reinforce the fritzy..
Same wireless name as SSID.
Same security settings... really should be WPA2 AES or in TC personal.
Same password..
Just different wireless channel.
Then you can use 5ghz on the TC if you are up close and personal.

How to find the max data transfer rate(disk speed) supported by mobo?

I plan on replacing my current HDD with a new and bigger HDD.
For this I need to know the max data transfer rate(disk speed) that my mobo will support. However, dmidecode is not telling me that. Am I missing something?
Here's dmidecode:
# dmidecode 2.11
SMBIOS 2.5 present.
80 structures occupying 2858 bytes.
Table at 0x000F0450.
Handle 0xDA00, DMI type 218, 101 bytes
OEM-specific Type
Header and Data:
DA 65 00 DA B2 00 17 4B 0E 38 00 00 80 00 80 01
00 02 80 02 80 01 00 00 A0 00 A0 01 00 58 00 58
00 01 00 59 00 59 00 01 00 75 01 75 01 01 00 76
01 76 01 01 00 05 80 05 80 01 00 D1 01 19 00 01
00 15 02 19 00 02 00 1B 00 19 00 03 00 19 00 19
00 00 00 4A 02 4A 02 01 00 0C 80 0C 80 01 00 FF
FF 00 00 00 00
Handle 0xDA01, DMI type 218, 35 bytes
OEM-specific Type
Header and Data:
DA 23 01 DA B2 00 17 4B 0E 38 00 10 F5 10 F5 00
00 11 F5 11 F5 00 00 12 F5 12 F5 00 00 FF FF 00
00 00 00
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: Dell Inc.
Version: A17
Release Date: 04/06/2010
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 4096 kB
Characteristics:
PCI is supported
PNP is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
ESCD support is available
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
BIOS Revision: 17.0
Handle 0x0100, DMI type 1, 27 bytes
System Information
Manufacturer: Dell Inc.
Product Name: OptiPlex 755
Version: Not Specified
UUID: 44454C4C-5900-1050-8033-C4C04F434731
Wake-up Type: Power Switch
SKU Number: Not Specified
Family: Not Specified
Handle 0x0200, DMI type 2, 8 bytes
Base Board Information
Manufacturer: Dell Inc.
Product Name: 0PU052
Version:
Handle 0x0300, DMI type 3, 13 bytes
Chassis Information
Manufacturer: Dell Inc.
Type: Space-saving
Lock: Not Present
Version: Not Specified
Asset Tag:
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
Handle 0x0400, DMI type 4, 40 bytes
Processor Information
Socket Designation: CPU
Type: Central Processor
Family: Xeon
Manufacturer: Intel
ID: 76 06 01 00 FF FB EB BF
Signature: Type 0, Family 6, Model 23, Stepping 6
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Not Specified
Voltage: 0.0 V
External Clock: 1333 MHz
Max Speed: 5200 MHz
Current Speed: 2666 MHz
Status: Populated, Enabled
Upgrade: Socket LGA775
L1 Cache Handle: 0x0700
L2 Cache Handle: 0x0701
L3 Cache Handle: Not Provided
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 2
Core Enabled: 2
Thread Count: 2
Characteristics:
64-bit capable
Handle 0x0700, DMI type 7, 19 bytes
Cache Information
Socket Designation: Not Specified
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: None
System Type: Data
Associativity: 8-way Set-associative
Handle 0x0701, DMI type 7, 19 bytes
Cache Information
Socket Designation: Not Specified
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Varies With Memory Address
Location: Internal
Installed Size: 6144 kB
Maximum Size: 6144 kB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: <OUT OF SPEC>
Handle 0x0800, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: PARALLEL
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: DB-25 female
Port Type: Parallel Port PS/2
Handle 0x0801, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SERIAL1
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: DB-9 male
Port Type: Serial Port 16550A Compatible
Handle 0x0802, DMI type 126, 9 bytes
Inactive
Handle 0x0803, DMI type 126, 9 bytes
Inactive
Handle 0x0804, DMI type 126, 9 bytes
Inactive
Handle 0x0805, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB1
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0806, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB2
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0807, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB3
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0808, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB4
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0809, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB5
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x080A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB6
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x080B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB7
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x080C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB8
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x080D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: ENET
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: RJ-45
Port Type: Network Port
Handle 0x080E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: MIC
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x080F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LINE-OUT
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x0810, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LINE-IN
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x0811, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: HP-OUT
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x0812, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: MONITOR
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: DB-15 female
Port Type: Video Port
Handle 0x090A, DMI type 9, 13 bytes
System Slot Information
Designation: SLOT1
Type: x1 Proprietary
Current Usage: In Use
Length: Long
Characteristics:
PME signal is supported
Handle 0x0901, DMI type 126, 13 bytes
Inactive
Handle 0x0902, DMI type 9, 13 bytes
System Slot Information
Designation: SLOT2
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 2
Characteristics:
5.0 V is provided
3.3 V is provided
PME signal is supported
Handle 0x0903, DMI type 126, 13 bytes
Inactive
Handle 0x0904, DMI type 126, 13 bytes
Inactive
Handle 0x0905, DMI type 126, 13 bytes
Inactive
Handle 0x0906, DMI type 126, 13 bytes
Inactive
Handle 0x0907, DMI type 126, 13 bytes
Inactive
Handle 0x0908, DMI type 126, 13 bytes
Inactive
Handle 0x0A00, DMI type 10, 6 bytes
On Board Device Information
Type: Video
Status: Disabled
Description: Intel Graphics Media Accelerator 950
Handle 0x0A02, DMI type 10, 6 bytes
On Board Device Information
Type: Ethernet
Status: Enabled
Description: Intel Gigabit Ethernet Controller
Handle 0x0A03, DMI type 10, 6 bytes
On Board Device Information
Type: Sound
Status: Enabled
Description: Intel(R) High Definition Audio Controller
Handle 0x0B00, DMI type 11, 5 bytes
OEM Strings
String 1: www.dell.com
Handle 0x0D00, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Long
Installable Languages: 1
en|US|iso8859-1
Currently Installed Language: en|US|iso8859-1
Handle 0x0F00, DMI type 15, 29 bytes
System Event Log
Area Length: 2049 bytes
Header Start Offset: 0x0000
Header Length: 16 bytes
Data Start Offset: 0x0010
Access Method: Memory-mapped physical 32-bit address
Access Address: 0xFFF01000
Status: Valid, Not Full
Change Token: 0x00000018
Header Format: Type 1
Supported Log Type Descriptors: 3
Descriptor 1: POST error
Data Format 1: POST results bitmap
Descriptor 2: System limit exceeded
Data Format 2: System management
Descriptor 3: Log area reset/cleared
Data Format 3: None
Handle 0x1000, DMI type 16, 15 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 8 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x1100, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM_1
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Manufacturer: AD00000000000000
Handle 0x1101, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM_3
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Handle 0x1102, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM_2
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Handle 0x1103, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM_4
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Handle 0x1300, DMI type 19, 15 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FDFFFFFF
Range Size: 4064 MB
Physical Array Handle: 0x1000
Partition Width: 1
Handle 0x1400, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0007FFFFFFF
Range Size: 2 GB
Physical Device Handle: 0x1100
Memory Array Mapped Address Handle: 0x1300
Partition Row Position: 1
Interleave Position: 1
Interleaved Data Depth: 1
Handle 0x1401, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00080000000
Ending Address: 0x000FDFFFFFF
Range Size: 2016 MB
Physical Device Handle: 0x1101
Memory Array Mapped Address Handle: 0x1300
Partition Row Position: 1
Interleave Position: 1
Interleaved Data Depth: 1
Handle 0x1402, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0007FFFFFFF
Range Size: 2 GB
Physical Device Handle: 0x1102
Memory Array Mapped Address Handle: 0x1300
Partition Row Position: 1
Interleave Position: 2
Interleaved Data Depth: 1
Handle 0x1403, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00080000000
Ending Address: 0x000FDFFFFFF
Range Size: 2016 MB
Physical Device Handle: 0x1103
Memory Array Mapped Address Handle: 0x1300
Partition Row Position: 1
Interleave Position: 2
Interleaved Data Depth: 1
Handle 0x1410, DMI type 126, 19 bytes
Inactive
Handle 0x1800, DMI type 24, 5 bytes
Hardware Security
Power-On Password Status: Enabled
Keyboard Password Status: Not Implemented
Administrator Password Status: Enabled
Front Panel Reset Status: Not Implemented
Handle 0x1900, DMI type 25, 9 bytes
System Power Controls
Next Scheduled Power-on: *-* 00:00:00
Handle 0x1B10, DMI type 27, 12 bytes
Cooling Device
Type: Fan
Status: OK
OEM-specific Information: 0x0000DD00
Handle 0x1B11, DMI type 27, 12 bytes
Cooling Device
Type: Fan
Status: OK
OEM-specific Information: 0x0000DD01
Handle 0x1B12, DMI type 126, 12 bytes
Inactive
Handle 0x1B13, DMI type 126, 12 bytes
Inactive
Handle 0x1B14, DMI type 126, 12 bytes
Inactive
Handle 0x2000, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected
Handle 0x8100, DMI type 129, 8 bytes
OEM-specific Type
Header and Data:
81 08 00 81 01 01 02 01
Strings:
Intel_ASF
Intel_ASF_001
Handle 0x8200, DMI type 130, 20 bytes
OEM-specific Type
Header and Data:
82 14 00 82 24 41 4D 54 01 01 00 00 01 A5 0B 02
00 00 00 00
Handle 0x8300, DMI type 131, 64 bytes
OEM-specific Type
Header and Data:
83 40 00 83 14 00 00 00 00 00 C0 29 05 00 00 00
F8 00 4E 24 00 00 00 00 0D 00 00 00 02 00 03 00
19 04 14 00 01 00 01 02 C8 00 BD 10 00 00 00 00
00 00 00 00 FF 00 00 00 00 00 00 00 00 00 00 00
Handle 0x8800, DMI type 136, 6 bytes
OEM-specific Type
Header and Data:
88 06 00 88 5A 5A
Handle 0xD000, DMI type 208, 10 bytes
OEM-specific Type
Header and Data:
D0 0A 00 D0 01 03 FE 00 11 02
Handle 0xD100, DMI type 209, 12 bytes
OEM-specific Type
Header and Data:
D1 0C 00 D1 78 03 07 03 04 0F 80 05
Handle 0xD200, DMI type 210, 12 bytes
OEM-specific Type
Header and Data:
D2 0C 00 D2 F8 03 04 03 06 80 04 05
Handle 0xD201, DMI type 126, 12 bytes
Inactive
Handle 0xD400, DMI type 212, 242 bytes
OEM-specific Type
Header and Data:
D4 F2 00 D4 70 00 71 00 00 10 2D 2E 42 00 11 FE
01 43 00 11 FE 00 0F 00 25 FC 00 10 00 25 FC 01
11 00 25 FC 02 12 00 25 FC 03 00 00 25 F3 00 00
00 25 F3 04 00 00 25 F3 08 00 00 25 F3 0C 07 00
23 8F 00 08 00 23 F3 00 09 00 23 F3 04 0A 00 23
F3 08 0B 00 23 8F 10 0C 00 23 8F 20 0E 00 23 8F
30 0D 00 23 8C 40 A6 00 23 8C 41 A7 00 23 8C 42
05 01 22 FD 02 06 01 22 FD 00 8C 00 22 FE 00 8D
00 22 FE 01 9B 00 25 3F 40 9C 00 25 3F 00 09 01
25 3F 80 A1 00 26 F3 00 A2 00 26 F3 08 A3 00 26
F3 04 9F 00 26 FD 02 A0 00 26 FD 00 9D 00 11 FB
04 9E 00 11 FB 00 54 01 23 7F 00 55 01 23 7F 80
5C 00 78 BF 40 5D 00 78 BF 00 04 80 78 F5 0A 01
A0 78 F5 00 93 00 7B 7F 80 94 00 7B 7F 00 8A 00
37 DF 20 8B 00 37 DF 00 03 C0 67 00 05 FF FF 00
00 00
Handle 0xD401, DMI type 212, 172 bytes
OEM-specific Type
Header and Data:
D4 AC 01 D4 70 00 71 00 03 40 59 6D 2D 00 59 FC
02 2E 00 59 FC 00 6E 00 59 FC 01 E0 01 59 FC 03
28 00 59 3F 00 29 00 59 3F 40 2A 00 59 3F 80 2B
00 5A 00 00 2C 00 5B 00 00 55 00 59 F3 00 6D 00
59 F3 04 8E 00 59 F3 08 8F 00 59 F3 00 00 00 55
FB 04 00 00 55 FB 00 23 00 55 7F 00 22 00 55 7F
80 F5 00 58 BF 40 F6 00 58 BF 00 EB 00 55 FE 00
EA 00 55 FE 01 40 01 54 EF 00 41 01 54 EF 10 ED
00 54 F7 00 F0 00 54 F7 08 4A 01 53 DF 00 4B 01
53 DF 20 4C 01 53 7F 00 4D 01 53 7F 80 68 01 56
BF 00 69 01 56 BF 40 FF FF 00 00 00
Handle 0xD402, DMI type 212, 152 bytes
OEM-specific Type
Header and Data:
D4 98 02 D4 70 00 71 00 00 10 2D 2E 2D 01 21 FE
01 2E 01 21 FE 00 97 00 22 FB 00 98 00 22 FB 04
90 00 11 CF 00 91 00 11 CF 20 92 00 11 CF 10 E2
00 27 7F 00 E3 00 27 7F 80 E4 00 27 BF 00 E5 00
27 BF 40 D1 00 22 7F 80 D2 00 22 7F 00 45 01 22
BF 40 44 01 22 BF 00 36 01 21 F1 06 37 01 21 F1
02 38 01 21 F1 00 39 01 21 F1 04 2B 01 11 7F 80
2C 01 11 7F 00 4E 01 65 CF 00 4F 01 65 CF 10 D4
01 65 F3 00 D5 01 65 F3 04 D2 01 65 FC 00 D3 01
65 FC 01 FF FF 00 00 00
Handle 0xD403, DMI type 212, 157 bytes
OEM-specific Type
Header and Data:
D4 9D 03 D4 70 00 71 00 03 40 59 6D 17 01 52 FE
00 18 01 52 FE 01 19 01 52 FB 00 1A 01 52 FB 04
1B 01 52 FD 00 1C 01 52 FD 02 1D 01 52 F7 00 1E
01 52 F7 08 1F 01 52 EF 00 20 01 52 EF 10 21 01
52 BF 00 22 01 52 BF 40 87 00 59 DF 20 88 00 59
DF 00 E8 01 66 FD 00 E9 01 66 FD 02 02 02 53 BF
00 03 02 53 BF 40 04 02 53 EF 00 05 02 53 EF 10
06 02 66 DF 00 07 02 66 DF 20 08 02 66 EF 00 09
02 66 EF 10 17 02 66 F7 00 18 02 66 F7 08 44 02
52 BF 40 45 02 52 BF 00 FF FF 00 00 00
Handle 0xD800, DMI type 126, 9 bytes
Inactive
Handle 0xDD00, DMI type 221, 19 bytes
OEM-specific Type
Header and Data:
DD 13 00 DD 00 01 00 00 00 10 F5 00 00 00 00 00
00 00 00
Handle 0xDD01, DMI type 221, 19 bytes
OEM-specific Type
Header and Data:
DD 13 01 DD 00 01 00 00 00 11 F5 00 00 00 00 00
00 00 00
Handle 0xDD02, DMI type 221, 19 bytes
OEM-specific Type
Header and Data:
DD 13 02 DD 00 01 00 00 00 12 F5 00 00 00 00 00
00 00 00
Handle 0xDE00, DMI type 222, 16 bytes
OEM-specific Type
Header and Data:
DE 10 00 DE C1 0B 00 00 10 05 19 21 01 00 00 01
Handle 0x7F00, DMI type 127, 4 bytes
End Of Table
Hdparm also does not tell me the max data transfer rate (disk speed) of my current drive although this link : www.wdc.com/en/library/sata/2879-001146.pdf says that it is 3.0Gb/s
and here's hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: WDC WD800JD-75JNC0
Firmware Revision: 06.01C06
Standards:
Supported: 6 5 4
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
CHS current addressable sectors: 16514064
LBA user addressable sectors: 156250000
Logical/Physical Sector size: 512 bytes
device size with M = 1024*1024: 76293 MBytes
device size with M = 1000*1000: 80000 MBytes (80 GB)
cache/buffer size = 8192 KBytes
Capabilities:
LBA, IORDY(can be disabled)
Standby timer values: spec'd by Standard, with device specific minimum
R/W multiple sector transfer: Max = 16 Current = 8
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
SET_MAX security extension
Automatic Acoustic Management feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* SMART error logging
* SMART self-test
* Gen1 signaling speed (1.5Gb/s)
* Host-initiated interface power management
* SMART Command Transport (SCT) feature set
* SCT Long Sector Access (AC1)
* SCT LBA Segment Access (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
Checksum: correct
Last edited by Inxsible (2011-03-27 04:40:49)

I just checked my BIOS and my current setting is set at IDE although it also mentions that the default should be AHCI. Currently I have a dual boot of Windows 7 (need it for Tax software) and Arch
So I guess, when I get the new HDD, I will first set it to AHCI and then install the OSes on it. See if NCQ helps any, and if not I will turn it back and re-install (if I have to). I am planning to have Windows only in virtualbox in the new drive.
Anyhoo, while I was in the BIOS I found two things which I had questions about :
1) Under Onboard Devices --> Integrated NIC , my setting is currently set at "On w/PXE" and it says the default should be just "On". Would it be ok to change it back to On since its a single machine and its not booting an OS on any server. I just don't want to have to re-install anything now since I will be doing that in the new HDD.
2) How would I know whether my BIOS would support a 64 bit OS in Virtualbox? I checked some setting under Virtualization, but they weren't very clear.
I will edit this post and let you know exactly what settings were present under the Virtualization sub-section.

How to increase AFP data transfer speed?

When I connect to our server from a WAN source outside of our facility the file data transfer rate is extremely slow. We just upgraded to a 10Mps fiber service and that has dematically increased our website data tranfer speed. I would like to find a way to access the file server from remote location and work, but the data transfer rate makes productivity impossible. I would appreciate hearing how other organizations are set-up and functioning with file transfer sizes at an average of 10 to 15 Mb.
Thanks,
Brian
OS10.6.8 Server,

If you don't have enough network bandwidth for your time requirements, you have little chance of success with the direct approach. Techniques such as file compression and such can only provide limited help. If you're transfering multiple copies of the files, then you can push one copy of the file to a hosted provider, and then serve additional copies from there.
As for your network, a ten million bits per second network connection is the speed of first-generation Ethernet. That Ethernet was a fast network, back in 1985. In the era of a one billion bits per second Gigabit Ethernet and increasingly commonly with the ten gigabit Ethernet links, a 10 Mb link is glacial.
A typical DSL network is asymmetric, meaning you'll have 10 Mb down (theoretically) and some fraction of that up. So you might not be getting that 10 Mb in the direction you're coppying files. And this is best case; various of the ISP network links around aren't providing their rated speeds.
AFP stinks on a network, and you're also opening up your file system to remote attackers.
As for WebDAV, read this. In addition to WebDAV, you can also try an sftp or other "simpler" copy command as a test, and see what you get for that. (sftp is also encrypted, which has benefits, though the encryption also requires more processing time.)
But beyond techniques such as data compression (and which may or may not be an option here) or incremental or "delta" changes to the data (which probably isn't an option here) or working locally and batching over the changes, there are few good ways to contend with a too-slow-for-your-needs link.

Very slow network directory listing - but fast data transfer speed once listed?

Hello,
I have really tried to sort this myself before opening up to the community, however I have run out of ideas, and hope someone can offer the magic solution I have missed.
I am currently using the 3.4ghz i7 iMac on a 1GB LAN, running OSX10.7.2 - connecting to a Windows Server 2008 (Running Release 2) over ethernet.
If i go to a network directory that i haven't recently accessed it can take up to 60 seconds to show the contents of that directory. Once i have accessed that folder, if i come out of it and go back in it will be instant again - but the first time it lists the directory it looks like i have opened an empty folder - which after anything from 10seconds to 1 minute will suddenly show the files that are there.
Internet connectivity is fast through the network, and file transfers across the LAN are fast. (showing as approx 300mb per second) I can play and edit HD content across the network with no slowdown so I am confident that this issue is not related to the network speed itself, and is more to do with a setting on this mac.
Symptoms are very similar to this post: https://discussions.apple.com/message/12245148?messageID=12245148&amp%3b#1224514 8 - however i understand that in OSX Lion - SMB was removed - so i cannot find this file to edit.
I have tried bypassing additional hubs in the network by wiring direct cables to the switch that is connected to the file server, this made no difference.
I have also tried disconnecting the ethernet cable, and running over wifi. This fixes the listing problem, but when editing HD content over a network drive, this connection is not fast enough to carry the data without interruption (some projects are linked to up to 900gb of hd video content!)
Using ethernet, I have tried DHCP, DHCP with manual address, and manual mode. All reproduce this problem. i have tried using the windows workgroup, and tried without it.
I have also followed this suggestion: https://discussions.apple.com/thread/2134936?threadID=2134936&tstart=45 and used OpenDNS. this did not fix the issue.
For argument sake, I have also just tested a Macbook Pro running Snow Leopard to see if it was OS related. This reproduces the exact same problem, near instant directory listing on the wifi, a long and arduous wait on ethernet.
I cannot work out why directory listing is instant over wifi, but not over ethernet on 2 different macs, running 2 different versions of OSX. I also do not understand why if the network is having trouble listing the directories - the data transfer speed is 300mbps when i copy files across the wired network from the file server to the mac.
Does anyone have any other ideas as to what could be the problem here? We are about to start work on a very large project, where the content we are editing is spread out across around 200 different network folders (different shoots captured over the past 2 years). We really don't have the time to wait 60 seconds each time we need to access one of those directories to look for a file, and I am very close to pulling all my hair out!
I really look forward to hearing from anyone who can offer any insight.

If you are suspecting that the Windows update had something to do with your LAN going slow, then try the following:
1. Look for updates for your clients LAN NIC driver; or
2. Un-install the updates.

Internal Disk to Disk Data Transfer Speed Very Slow

I have a G5 Xserve running Tiger with all updates applied that has recently started experiencing very slow Drive to Drive Data transfer speeds.
When transferring data from one drive to another ( Internal to Internal, Internal to USB, Internal, Internal to FW, USB to USB or any other combination of the three ) we only are getting about 2GB / hr transfer speeds.
I initially thought the internal drive was going bad. I tested the drive and found some minor header issues etc... that were able to be repaired so I replace the internal boot drive
I tested and immediately got the same issue.
I also tried booting from a FW drive and I got the same issue.
If I connect to the server over the ethernet network, I get what I would expect to be typical data transfer rates of about 20GB+ / hr. Much higher than the internal rates and I am copying data from the same internal drives so I really don't think the drive is the issue.
I called AppleCare and discussed the issue with them. They said it sounded like a controller issue so I purchased a replacement MLB from them. After replacing the drive data transfer speeds jumped back to normal for about a day maybe two.
Now we are back to experiencing slow data transfer speeds internally ( 2GB / hr ) and normal transfer speeds ( 20GB+ / hr ) over the network.
Any ideas on what might be causing the problem would be appreciated

As suggested, do check for other I/O load on the spindles. And check for general system load.
I don't know of a good GUI in-built I/O monitor here (and particularly for Tiger Server), though there is iopending and DTrace and Apple-provided [performance scripts|http://support.apple.com/kb/HT1992] with Leopard and Leopard Server. top would show you busy processes.
Also look for memory errors and memory constraints and check for anything interesting in the contents of the system logs.
The next spot after the controllers (and it's usually my first "hardware" stop for these sorts of cases, and usually before swapping the motherboard) are the disks that are involved, and whatever widgets are in the PCI slots. Loose cables, bad cables, and spindle-swaps. Yes, disks can sometimes slow down like this, and that's not usually a Good Thing. I know you think this isn't the disks, but that's one of the remaining common hardware factors. And don't presume any SMART disk monitoring has predictive value; SMART can miss a number of these cases.
(Sometimes you have to use the classic "field service" technique of swapping parts and of shutting down software pieces until the problem goes away. Then work from there.)
And the other question is around how much time and effort should be spent on this Xserve G5 box; whether you're now in the market for a replacement G5 box or a newer Intel Xserve box as a more cost-effective solution.
(How current and how reliable is your disk archive?)

NSS2000 - Data transfer speeds over gigabit ethernet

I've just installed a NSS2000 on a gigabit network. I'm aware that some of the promised features (like support for jumbo frames) are not currently supported by the current firmware (version 1.13).
However, even without jumbo frames, I'm puzzled of why I am seeing data transfer speeds of only 50megabits per second, or about 5% utilization of the 1000Mb/s connection. I was expecting at least 20% utilization.
Is this another limitation of the current firmware version, or is there a setting somewhere on the NSS2000 which I need to to tweak to increase data transfer speeds?
More background - it is the only significant traffic on the network during test, the ethernet controller driver on my PC is the latest available, and the NSS reports that it is connected at 1000MB/sec. The unit has two 1.5Tb SATA drives in it, which are configuered as RAID1.
Also - does anyone know when the next firmware version is going to be available, and which of the current known issues it is likely to address?
thanks
Graham

I should mention that the volume I am writing to is encrypted - is the answer simply that this is the fastest that the onboard CPU can decrypt the content?
An experiment to an unencrypted volume increased the LAN utilization to around 10% - so an improvement, but still not as high as I had hoped.
thanks
Graham

Problems with Photoshop performance and data transfer speed on iMac

Two months ago, I started noticing slow performances using Photoshop (above all using clone stamp tool) on my 27" iMac (late 2012). I did the AHT and I found that 8GB of 32GB RAM were broken.
I removed them but the problem didn't disappered, I also noticed that data transfer speed (both copy and paste from/to internal HD and from CF card/external HD) was really slow.
I tried many solutions suggested by Apple support, none of them worked out. At the end, I tried uninstalling and re-installing Photoshop: no more problems!!!
10 days ago, I received a new 8GB RAM module and so I installed it back... suddenly, the problem came back, I tried re-installing again Photoshop but the problem, this time, still persist!
Does anyone had the same experience? All other CC programs work well (LR, AE, Premiere...)

yes, it does!
what seems to be very strange to me is how data trasnfer speed could be affected!
(just to say, I've already tried reset of SMC and PRAM, I've tried with different accounts and I've also re-installed the OS, next step would be formatting the disk and installing the OS from zero)

How can i improve speed of my application and reduce data transfer time ?

Hello,
My web application is adobe flex application which is build in flash builder 4.0 and use flex 4.0 SDK.
I am using asp.net web service and cairngorm architecture in my project.
Front : asp.net c# web project
Middle : asp.net c# web service
back : MS Sql server 2005
When i run my applicaiton then i show that data transfer time between USA server to Indian client is so huge.
Please suggest me all solutions approach so i am increase the speed of my application and reduce data transfer time.
And please let me know how all approaches is reduce my data transfer speed.
Thanks,
Mohit.

Hello,
Thank you for your response,
If i am using remote object insted of web services, can this will increase my application speed i
It is big change so please give me guidance.
My application have different type of request, some are very small request and transfer little amout of data from server to client, some request are send very huge amount of data from server to client .
I am using JSON from data transfer in my current web service.
Please provide some guidance on this.
Thanks,
Mohit

Whats the maximum achievable speed of data transfer from RT to host PC

Hi
Anybody can tell me whats the maximum achievable speed of data transfer from RT to host PC, in case of both PXI and CompacRIO.
Regards
Visuman

Hi visuman,
To be honest, the dataspeed is dependent on how you architect the code, and the data communication channels that you use.
There are many factors that influence the maximum transfer rate, including network topology, types of interface used, OS, ambient network traffic etc.
You can control two things, packet size, and amount of sleep time between transmissions.
By altering the delay between consecutive TCP/IP transmissions and by varying the packet sizes sent from the embedded side to the host side, you can obtain a clear picture of network characteristics between the two devices. The end result is a report of the optimal TCP/IP configuration, that is packet size and sleep time.
Check out : Developer Zone : Measuring the Maximum Amount of Data Sent Out of a Real-Time Target Device
Here are some other links that maybe useful for you.
KB 2M9ARPEW : Real-Time VI to Host VI Communication Methods
Developer Zone : Real-Time FIFO for Deterministic Data Transfer Between VIs
Hope this helps!
Ashish Naik
Field Sales Engineer
National Instruments UK

I have problem with data transfer between Windows Server 2012RT and Windows7 (no more than 14kbps) while between Windows Sever 2012RT and Windows8.1 speed is ok.

I have problem with data transfer between Windows Server 2012RT and Windows7 (no more than 14kbps) while between Windows Sever 2012RT and Windows8.1 speed is ok.

Hi,
Regarding the issue here, please take a look at the below links to see if they could help:
Slow data transfer speed in Windows 7 or in Windows Server 2008 R2
And a blog here:
Windows Server 2012 slow network/SMB/CIFS problem
Hope this may help
Best regards
Michael
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I am wondering if the data from data speed test apps affects my overall usage from my plan

Yesterday as we were coming home on the highway, i decided to test the connection speed using an app from the google play store. I downloaded it because I had about 11MB or so used that day and decided to use my data. Once it finished downloading and installed I opened it and begun a test. It gave me a 15mb download and 2mb upload result so I did one more test. As I was doing the second test I get an alert about my data limit I set up for the day to pace out the 2GB I have for the month. I went to check my apps and saw I used about 40-50MB since using the data speed test app. Do these tests count against my actual plan?

Yes speed tests count against your cap if as Ann says you;re using them to test you mobile data. I think this where I see people complaining about their caps being exceeded but claim they don't do anything. People don't realize that speed tests are going to use 50 MB and even up to 80 MB of data. You do just 1 speed test in a day and you will use 1.5 GB to 2.5 GB a month. And some people feel the need to do 3, 5, 10 tests a day.

NI8451 SPI data transfer speed and SCLK setup time adjustment

I'm using NI USB-8451 SPI bus to do communication. I can not reach the speed of communication 4MHz (NI USB-8451 module advertises speeds up to 12MHz). Actrually the data transfer speed is much slower than 4/8 Mb/s. The 16k*16bit data cost around 800ms while it should be 128ms if the data transfer achieves 4Mhz speed. In the manual there is a SPI timing clock figure like this:
In the 4Mhz communication case, the t2 should be 0.25us. I wonder whether the low data transfer speed is due to t1,t3 and t4 since they occupy too much "dead time". If my guess is right, is there any method to reduce the t1,t3 or t4, espetially t3? I know that in the advanced API there is a way to add delay while I did not figure out how to reduce delay(t3). If my guess is wrong, what is the exactly maximum data transfer speed NI8451 can support? (not the clock rate)
Thanks for help.

Hi everyone. Im using the SPI communication with 8451 and Im having the same situation., since the serial flash memory I need to program is big enough, t3 (SCLK Setup time) and other "dead time" which I think is the time when buffer on the 8451 needs to be re-filled those are killing my expectation on the final results. I can't see a way to decrease t3 (~10uSec) and in the same way Im seeing something like buffering up to 100~110 bytes then, a ~1.5mSec delay appears on the signal waveforms. Did somebody have good results trying to avoid this?
Thank you.
Javier
Attachments:
t3 - SCLK setup time.jpg ‏156 KB
Data byte Transfer_109.jpg ‏137 KB

IPad4 wi-fi+celluar data transfer speed on 3g+ network.

I use iPad4 wi-fi+celluar in the HSDPA, HSUPA, Dual-Carrier network. Download speed is not more than 2,5Mbit/s, when Nokia Lumia 920 gives me 10+Mbit/s (same microSIM, same location, same hours). Tried different carriers - same. Please, help me understand - why I can't use internet at full speeds.
Thanks anyway.

Here's an article that discusses the third generation iPad with WiFi+cellular. As you can see, it reports much higher speeds than you have. So it must depend on environment, how you're testing, etc.
The article discusses "New iPad 4G" - but again that was the third generation iPad which was introduced in March, 2012.
http://news.cnet.com/8301-17938_105-57400288-1/new-ipad-4g-real-world-speed-test -youre-the-winner/

Bottleneck in Data Transfer

We run a small network in our office consisting mainly of Intel iMacs we purchased several months ago. The server computer is a brand new Intel Mac Pro server with 4 500 gig drives raided together, two 2.66GHz dual core intel processors, all the other bells and whistles we could think of, etc. We added in two fiber-optic switches: one in the server room, one in the office. The switches connect to each other and the server with fiber optic cables, but the iMacs connect with ethernet cables.
We had the iMacs for a while but we just recently got the new server and upgraded our old 100 base switches. Afterwards we wanted to test out the data transfer speeds, as we plan to back up to the server frequently. We were dismayed to find that transfer rates capped out at 60 MegaBytes/sec according to the Activity Monitor's Network Activity tab. In fact, it would range mostly from 40-45MB/sec. None of us here have much experience with networking, but that seemed a tad too slow. My basic math tells me that a byte is 8 bits, and from that a Gigabit network should transfer data at 120 MegaBytes/sec, which is three times the speeds we were actually seeing.
We sent data both to and from the server in order to test this. Thinking it was perhaps a problem with the ethernet itself, we grabbed an external FireWire hard drive and transferred data from one of the iMacs directly to it and noticed exactly the same transfer rates. We plugged two iMacs directly into each other and transferred at the same rate, ~45MB/sec.
Well this was highly frustrating. All Macs supposedly ship with Gigabit ethernet since, what, 2002? Earlier? Why are our speeds so slow? We thought the hard drives might be slow, so we got info on the drives and googled them for their tech specs. The iMacs' Western Digital drives are capable of much much faster speeds according to everything we've read.
We started reading anything we could online that addressed this issue. Some information read the problem might be that the optical DVD-R/CD-R drive was only capable of slower transfer speeds. Since the optical drive and the hard drive are on the same bus it would slow down the hard drive's maximum transfer rate, much like having a Gigabit hub with a 10 base computer plugged into it would slow the entire network down (which is of course why we use switches instead of hubs). Is there any truth to this? If this is, in fact, the case, can we bypass this bottleneck somehow? I'm not talking about opening the computer and manually disabling the optical drive, as that's a waste of a perfectly good DVD-R/CD-R drive.
Also, if this is true, why in blue blazes is Apple flaunting Gigabit ethernet if the computer can only take advantage of 1/3 the speeds Gigabit ethernet has to offer?! I'll happily provide any more information that's relevant to the problem at hand.
Thank you
Mac OS X (10.4.8)

Here's the specs for the default Hard Drive that Apple put in here:
http://www.westerndigital.com/en/products/Products.asp?DriveID=137
From that page
Buffer To Host (Serial ATA) 300 MB/s (Max)
Buffer To Disk 748 Mbits/s (Max)
I have no idea what signaling overhead for my data transfer protocol means.
The ethernet cords are no longer than 20 feet, are all Cat5E, and are well shielded. There is little to no ElectroMagnetic interference in any area they run. The longest cable is the Fiber Optic one, which runs about... oh... 40 yards? These were all installed by professionals.
I feel it's important to stress the fact that we tested an isolated direct computer to computer transfer with a single 6 foot Cat5E Ethernet cable and still experienced the same speeds that we experienced over the network. We tested multiple computers, multiple cables, multiple files.

Data transfer en speed test

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