Hello storage-discuss,
I have a server with quite a lot of LUNs presented to it.
Now I want to create a zpool in a RAID-10 configuration with exact
LUN pairs. LUNs are under MPxIO.
With currently available tools when MPxIO is involved the procedure
is a little bit annoying.
bash-3.00# fcinfo remote-port -p 210000e08b9cb7cb -s | head -20
Remote Port WWN: 5006016041e03566
Active FC4 Types:
SCSI Target: yes
Node WWN: 50060160c1e03566
LUN: 0
Vendor: DGC
Product: RAID 5
OS Device Name: /devices/scsi_vhci/[EMAIL PROTECTED]:c,raw
LUN: 1
Vendor: DGC
Product: DISK
OS Device Name: /dev/rdsk/c6t6006016062231B000ABBBE8517D9DB11d0s2
LUN: 2
Vendor: DGC
Product: DISK
OS Device Name: /dev/rdsk/c6t6006016062231B001A70C49C17D9DB11d0s2
LUN: 3
Vendor: DGC
Product: DISK
OS Device Name: /dev/rdsk/c6t6006016062231B00C497C0AB17D9DB11d0s2
bash-3.00#
Now what if you have lot of these LUNs? Finding MPxIO device name
assigned to a specific LUN from that output is annoying.
Now consider different output (custom tool):
bash-3.00# ./hba_inq -l | tail -10
bus 4 target 239 lun 9
"/dev/rdsk/c6t6006016062231B00E839171618D9DB11d0s2"
bus 4 target 239 lun 8
"/dev/rdsk/c6t6006016062231B008666F90918D9DB11d0s2"
bus 4 target 239 lun 7
"/dev/rdsk/c6t6006016062231B005A25D1FE17D9DB11d0s2"
bus 4 target 239 lun 6
"/dev/rdsk/c6t6006016062231B00E2F7A4DA17D9DB11d0s2"
bus 4 target 239 lun 5
"/dev/rdsk/c6t6006016062231B00DCEA12D017D9DB11d0s2"
bus 4 target 239 lun 4
"/dev/rdsk/c6t6006016062231B003C3032C517D9DB11d0s2"
bus 4 target 239 lun 3
"/dev/rdsk/c6t6006016062231B00C497C0AB17D9DB11d0s2"
bus 4 target 239 lun 2
"/dev/rdsk/c6t6006016062231B001A70C49C17D9DB11d0s2"
bus 4 target 239 lun 1
"/dev/rdsk/c6t6006016062231B000ABBBE8517D9DB11d0s2"
bus 4 target 239 lun 0 "/devices/scsi_vhci/[EMAIL PROTECTED]:c,raw"
bash-3.00#
That's much easier.
IMHO it would be great if fcinfo and/or mpathadm could print device
name with lun and target name all in one line per device.
What do you think?
--
Best regards,
Robert mailto:[EMAIL PROTECTED]
http://milek.blogspot.com
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