Question : Slow disk performance on HP DL 380G5 SAS RAID1+0

Dear all,

I have three HP DL 380 G5 servers, all with a RAID1+0 configuration. They all experience slow disk performance, especially when transferring large files.

No errors show up on the event log or in the HP Insight Diagnostics.

Any clues?


Hereunder the details of the storage configuration.


Array Controller, HP P400, Slot 1 - HP P400
Model HP P400
Firmware 5.20
Configured logical drives 2
Total Memory Size 512 Mbytes
Installed Memory 512 Mbytes
Usable Cache RAM 464 Mbytes
Battery 1 OK
Serial Number PAFGK0P9VWO6XA
PCI Slot Number 1
World Wide Name 50014380028C32D8
BIOS boot device order 1
Logical Volume 0, Controller Slot 1 Bus 0 - 73.4 Gbytes RAID 1
Status Code 0
Status Description OK
Model HP LOGICAL VOLUME
Firmware 5.20
Capacity 73.4 Gbytes
Device Path \\.\SCSI2:
Volume ID 0
Fault Tolerance RAID 1
Logical Drive Parameters
Controller Drive Count 4
Volume Drive Count 2
Drive Parameter Table
Stripe Size (physical blocks) 256
Physical Hard Drive 1, Controller Slot 1 - 73.4 Gbytes 15K RPM - HP DH072ABAA6
Model HP DH072ABAA6
Firmware HPD9
Capacity 73.4 Gbytes
Controller Array Controller, HP P400, Slot 1
Rotation Rate 15K RPM
Serial Number 3PD0KL6H00009802FDZS
Temperature 32 Degrees Celsius
Cable Configuration Not available
Connector 2I
Enclosure Number 1
Enclosure Bay 1
Drive type SAS Hard Drive
Negotiated link rate 3.0 Gbps
Read Errors Hard 00000000
Read Errors Retry Recovered 00000000
Write Errors Hard 00000000
Write Errors Retry Recovered 00000000
Predictive Failure Errors 00000000
Drive Present and Operational Yes
Sectors Written 0000000153b0e20f
Physical Hard Drive 2, Controller Slot 1 - 73.4 Gbytes 15K RPM - HP DH072ABAA6
Model HP DH072ABAA6
Firmware HPD9
Capacity 73.4 Gbytes
Controller Array Controller, HP P400, Slot 1
Rotation Rate 15K RPM
Serial Number 3PD0KA1Y00009802DTV2
Temperature 31 Degrees Celsius
Cable Configuration Not available
Connector 2I
Enclosure Number 1
Enclosure Bay 2
Drive type SAS Hard Drive
Negotiated link rate 3.0 Gbps
Read Errors Hard 00000000
Read Errors Retry Recovered 00000000
Write Errors Hard 00000000
Write Errors Retry Recovered 00000000
Predictive Failure Errors 00000000
Drive Present and Operational Yes
Sectors Written 000000014b265311
Logical Volume 1, Controller Slot 1 Bus 0 - 146.8 Gbytes RAID 1
Status Code 0
Status Description OK
Model HP LOGICAL VOLUME
Firmware 5.20
Capacity 146.8 Gbytes
Device Path \\.\SCSI2:
Volume ID 0
Fault Tolerance RAID 1
Logical Drive Parameters
Controller Drive Count 4
Volume Drive Count 2
Drive Parameter Table
Stripe Size (physical blocks) 256
Physical Hard Drive 3, Controller Slot 1 - 146.8 Gbytes 10K RPM - HP DG146BAAJB
Model HP DG146BAAJB
Firmware HPD9
Capacity 146.8 Gbytes
Controller Array Controller, HP P400, Slot 1
Rotation Rate 10K RPM
Serial Number P4WV49JA
Temperature 34 Degrees Celsius
Cable Configuration 16 bit wide data path on a cable with 16 SCSI IDs supported
Connector 1I
Enclosure Number 1
Enclosure Bay 7
Drive type SAS Hard Drive
Negotiated link rate 3.0 Gbps
Read Errors Hard 00000000
Read Errors Retry Recovered 00000000
Write Errors Hard 00000000
Write Errors Retry Recovered 00000000
Predictive Failure Errors 00000000
Drive Present and Operational Yes
Sectors Written 0000000090a8c491
Physical Hard Drive 4, Controller Slot 1 - 146.8 Gbytes 10K RPM - HP DG146BAAJB
Model HP DG146BAAJB
Firmware HPD9
Capacity 146.8 Gbytes
Controller Array Controller, HP P400, Slot 1
Rotation Rate 10K RPM
Serial Number P4WUAL2A
Temperature 35 Degrees Celsius
Cable Configuration 16 bit wide data path on a cable with 16 SCSI IDs supported
Connector 1I
Enclosure Number 1
Enclosure Bay 8
Drive type SAS Hard Drive
Negotiated link rate 3.0 Gbps
Read Errors Hard 00000000
Read Errors Retry Recovered 00000000
Write Errors Hard 00000000
Write Errors Retry Recovered 00000000
Predictive Failure Errors 00000000
Drive Present and Operational Yes
Sectors Written 0000000090a8c463
Logical Disks
C: Logical Disk 1 ~ 73.37GB
Volume Name
File System NTFS
Size (Byte) 73368432640
Free Space (Byte) 41185562624
D: Logical Disk 2 ~ 146.77GB
Volume Name
File System NTFS
Size (Byte) 146774487040
Free Space (Byte) 47386877952

Answer : Slow disk performance on HP DL 380G5 SAS RAID1+0

Considering the amount of I/O it's creating I'd take it off at least as an experiment. I doubt it was insatlled when the servers were first set up since it's fairly new.