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11-19-2013 04:46 AM
11-19-2013 04:46 AM
Hi
I have 2 absolutely same rx4640 servers with same hardware. Today I reboot one server and see that it's HDD works on low speed (80 MB/s). I made an ivstigation and find this result:
Server 1:
# mptconfig /dev/mpt2
Device File : /dev/mpt2
Hardware Path : 0/1/1/0
---- BUS PARAMETERS ----------------------------------------------------------
Initiator SCSI ID : 7
SCSI Bus Rate : Ultra320
SCSI Bus Width : Wide
---- TARGET PARAMETERS -------------------------------------------------------
Target Description Firmware In Use In Use
Id Version Rate Width
------------------------------------------------------------------------------
0 ST373454LC HPC2 Ultra320 Wide
1 ST373454LC HPC2 Ultra320 Wide
------------------------------------------------------------------------------
Server 2:
# mptconfig /dev/mpt2
Device File : /dev/mpt2
Hardware Path : 0/1/1/0
---- BUS PARAMETERS ----------------------------------------------------------
Initiator SCSI ID : 7
SCSI Bus Rate : Ultra2
SCSI Bus Width : Wide
---- TARGET PARAMETERS -------------------------------------------------------
Target Description Firmware In Use In Use
Id Version Rate Width
------------------------------------------------------------------------------
0 ST373454LC HPC2 Ultra2 Wide
1 ST373454LC HPC2 Ultra2 Wide
Hardware is same.
Why one server 2 SCSI Bus Rate is Ultra2?
Solved! Go to Solution.
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11-19-2013 04:54 AM
11-19-2013 04:54 AM
SolutionTry to set a new value.
# mptconfig
Usage: mptconfig [options] <dev_file>
<dev_file> = /dev/mptX
Options:
-i initiator_id = 0 to 15
-t target_id = 0 to 15
-r rate = ultra|ultra2|ultra160|ultra320
-w width = narrow|wide
-d set default values for scsi bus
default values are:
initiator_id = 7
rate = ultra320
width = wide
and check if it stays with the values.
Hope this helps!
Regards
Torsten.
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11-19-2013 05:32 AM
11-19-2013 05:32 AM
Re: rx4640 ULTRA320 SCSI ADAPTER HDD speed
Thank you. This helps.