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Hello,
can anyone provide me the steps to find the diffrence B/w LUN and Local disk in host like windows2003,windows 2008,solaris,linux with the help of HUK and also without it?
Cheers,
Saran
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migration has accepted the solution
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You can also find the vendor of the LUN and the id by executing "cat /proc/scsi/scsi" in RHEL
[root@warspite ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM-ESXS Model: CBR036C31210ESFN Rev: DFQG
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: IBM-ESXS Model: ST336607LC FN Rev: B25H
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 08 Lun: 00
Vendor: IBM Model: 25P3495a S320 1 Rev: 1
Type: Processor ANSI SCSI revision: 02
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi3 Channel: 00 Id: 00 Lun: 01
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi3 Channel: 00 Id: 00 Lun: 03
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Thanks,
Arun
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Are you looking to identify which are local disk and whichare LUINS presented on that host ?
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Yeah, i am looking for that info
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If you look in Device Manager at the Disk Drives - the manufacteur of the disk is usually listed - so Netapp disks would be a NetApp LUN, for example.
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Thanks for the info!
That things will be used in windows,for unix host like LINUX,Solaris what would be the method/cmd to find out?
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HI,
For Linux, install sansurfer package and say “sanlun lun show”. Hope this is useful.
Thanks,
Arun
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.
I am bit curious to know how could we differentiate LUN and Local disk ,without a HUK / Sansurfer packages installed ?.We came across such a difficulty in an incompatible machine that doesnt have any package to install.
Cheers,
Saran
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Hi,
So you want to find the LUN’s connected without any external packages like sansurfer being installed.
Try out: ls -l /sys/block/*/device
Thanks,
Arun
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To give you an analogy:
[root@warspite ~]# ls -l /sys/block/*/device
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/hda/device -> ../../devices/ide0/0.0
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sda/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.0/0000:04:01.0/host0/target0:0:0/0:0:0:0
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdb/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.0/0000:04:01.0/host0/target0:0:1/0:0:1:0
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdc/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:0
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdd/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:1
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sde/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:3
[root@warspite ~]# sanlun lun show
controller: lun-pathname device filename adapter protocol lun size lun state
cos: /vol/NikhilSetupVMware/vcslun1 /dev/sdc host3 FCP 30g (32212254720) GOOD
cos: /vol/NikhilSetupVMware/vcslun2 /dev/sdd host3 FCP 10g (10737418240) GOOD
cos: /vol/NikhilSetupVMware/OC50VCS /dev/sde host3 FCP 10g (10737418240) GOOD
The ones that are bolded from the command " ls -l /sys/block/*/device" are the LUNs connected - which are also shown in sanlun lun show.
Thanks,
Arun
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Thanks arun!
What is the way to find the LUN exactly,when the host contains multiple LUN's with same size.?
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HI,
See, with sansurfer or other software it should be easy. Otherwise, I am not very sure but can give you a hint:
In the output I gave you for analogy:
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdc/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:0
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdd/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:1
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sde/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:3
were the 3 LUNs mapped to the host.
Now From filer view, the id’s of these 3 Luns mapped to this host are as follows:
Lun name - vcslun2 Lun id - 1
vcslun1 - 0
OC5OVCS – 3
If you see thelast digit of the output above (target mapped to):
ie.
target3:0:0/3:0:0:0
target3:0:0/3:0:0:1
target3:0:0/3:0:0:3
and map the Lun id, you should be able to differentiate.
So,
lrwxrwxrwx 1 root root 0 Aug 20 00:20 /sys/block/sdd/device -> ../../devices/pci0000:00/0000:00:04.0/0000:03:00.2/0000:05:01.0/host3/rport-3:0-2/target3:0:0/3:0:0:1
i.e device sdd should be the LUN vcslun2
Thanks,
Arun
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You can also find the vendor of the LUN and the id by executing "cat /proc/scsi/scsi" in RHEL
[root@warspite ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM-ESXS Model: CBR036C31210ESFN Rev: DFQG
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: IBM-ESXS Model: ST336607LC FN Rev: B25H
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 08 Lun: 00
Vendor: IBM Model: 25P3495a S320 1 Rev: 1
Type: Processor ANSI SCSI revision: 02
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi3 Channel: 00 Id: 00 Lun: 01
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Host: scsi3 Channel: 00 Id: 00 Lun: 03
Vendor: NETAPP Model: LUN Rev: 7330
Type: Direct-Access ANSI SCSI revision: 04
Thanks,
Arun
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Arun,
is it possible by anyway to find the LUN using a serial number in it?
Cheers,
Saran
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HI,
LUN id is the unique identifier between the host and the filer (storage) to differentiate between LUNs. There should be a way to find the LUN using serial number. I am currently not aware of it. Will let you know if I find anything.
Thanks,
Arun
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Arun,
We have used luxadm in solaris to find out the serial no with the help of that we can match the LUN with Serial No.
# luxadm display /dev/rdsk/c0t600015D0002028000000000000001142d0s2
DEVICE PROPERTIES for disk: /dev/rdsk/c0t600015D0002028000000000000001142d0s2
Vendor: SUN
Product ID: SE6920
Revision: 0202
Serial Num: 00500057
Unformatted capacity: 10240.000 MBytes
Read Cache: Enabled
Minimum prefetch: 0x0
Maximum prefetch: 0xffff
Device Type: Disk device
Path(s):
/dev/rdsk/c0t600015D0002028000000000000001142d0s2
/devices/scsi_vhci/disk@g600015d0002028000000000000001142:c,raw
Controller /dev/cfg/c4
Device Address 213600015d207200,0
Host controller port WWN 210100e08b206812
Class primary
State ONLINE
Controller /dev/cfg/c11
Device Address 213600015d207200,0
Host controller port WWN 210100e08b30a2f2
Class primary
State ONLINE
Cheers,
Saran
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Thanks
There is an equavelant way by using lscfg in Linux. Guess, I need to install couple of rpm's to make it work.
Thanks,
Arun