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тАО08-19-2009 02:33 PM
тАО08-19-2009 02:33 PM
problems with EVA4100 y multipath i see each device 4 times
i have the following software installed:
-HPDMultipath-4.3.0
-hp-lpfc-8.0.16.40_p2-1
this are some of the screens:
# ls /dev|grep sd
# multipath -l
# cat/proc/scsi/scsi|less
ksh: cat/proc/scsi/scsi: not found
# cat /proc/scsi/scsi | less
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: HP Model: HSV200 Rev: 6110
Type: RAID ANSI SCSI revision: 05
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: HP Model: HSV200 Rev: 6110
Type: RAID ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: HP Model: HSV200 Rev: 6110
Type: RAID ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 01 Lun: 00
Vendor: HP Model: HSV200 Rev: 6110
Type: RAID ANSI SCSI revision: 05
# hp_rescan -a
Adding legacy tape devices to /proc/scsi/device_info
Scanning /sys/class/scsi_host/host0
Scanning /sys/class/scsi_host/host1
Scanning /sys/class/scsi_host/host2
Scanning /sys/class/scsi_host/host3
scsi0 00 00 00 HP HSV200 6110 RAID
scsi0 00 01 00 HP HSV200 6110 RAID
scsi0 00 00 01 HP HSV200 6110 Direct-Access
scsi0 00 01 01 HP HSV200 6110 Direct-Access
scsi2 00 00 00 HP HSV200 6110 RAID
scsi2 00 01 00 HP HSV200 6110 RAID
scsi2 00 00 01 HP HSV200 6110 Direct-Access
scsi2 00 01 01 HP HSV200 6110 Direct-Access
# ls /dev | grep sd
sda
sdb
sdc
sdd
# multipath -ll
mpath11 (3600508b40006cd4f0000b000001a0000)
[size=1 GB][features="1 queue_if_no_path"][hwhandler="0"]
\_ round-robin 0 [prio=100][enabled]
\_ 0:0:0:1 sda 8:0 [active][ready]
\_ 2:0:0:1 sdc 8:32 [active][ready]
\_ round-robin 0 [prio=20][enabled]
\_ 0:0:1:1 sdb 8:16 [active][ready]
\_ 2:0:1:1 sdd 8:48 [active][ready]
thanking all your help
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тАО08-19-2009 04:40 PM
тАО08-19-2009 04:40 PM
Re: problems with EVA4100 y multipath i see each device 4 times
And yes, it does not works as the Qlogic failover driver, but it works.
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тАО08-19-2009 05:44 PM
тАО08-19-2009 05:44 PM
Re: problems with EVA4100 y multipath i see each device 4 times
but im confused, this device has 4 paths (sda, sdb, sdc, sdd)like you said to me, but there is no way to see this device only by 1 path, because is the same disk seen 4 times by the four channels of the 2 controllers
thanking all your help
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тАО08-19-2009 11:01 PM
тАО08-19-2009 11:01 PM
Re: problems with EVA4100 y multipath i see each device 4 times
lssd also shows all the physical paths.
I dont know about a command which shows only the LUN.
Check your mpath devices by
#ll /dev/mpath
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тАО08-20-2009 05:04 AM
тАО08-20-2009 05:04 AM
Re: problems with EVA4100 y multipath i see each device 4 times
thanking all your help
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тАО08-20-2009 05:35 AM
тАО08-20-2009 05:35 AM
Re: problems with EVA4100 y multipath i see each device 4 times
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тАО08-20-2009 06:11 AM
тАО08-20-2009 06:11 AM
Re: problems with EVA4100 y multipath i see each device 4 times
There really are four paths.
You use the path Ivan specified because that will work if any of the 4 actual paths are up.
Server has two hba cards.
Fiber network has two channels.
Four paths.
You want to see them in case you have troubles and need to diagnose.
SEP
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