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How do I set up the AIX 6.1 mutlipathing for Hitachi AMS 2300?
Hi there,
We are setting up a AIX 6.1 box (p710) which has two dual port HBAs directly attached to Hitachi AMS 2300. There are 8 luns presented. And lspv shows 32 new disks, so I'm guessing that LUN is seen four times, and that there is no multipathing.
For some reason I thought it was native - but perhaps that was not set up (the box came pre-installed with AIX)
Anyone have any hints on how to get started?
Thanks!
We are setting up a AIX 6.1 box (p710) which has two dual port HBAs directly attached to Hitachi AMS 2300. There are 8 luns presented. And lspv shows 32 new disks, so I'm guessing that LUN is seen four times, and that there is no multipathing.
For some reason I thought it was native - but perhaps that was not set up (the box came pre-installed with AIX)
Anyone have any hints on how to get started?
Thanks!
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Hi,
AIX's native multipathing support (MPIO) is normally active by default.
Run
lslpp -l devices.common.IBM.mpio.rt
to see if MPIO is actually there.
If it's missing - perhaps the person who installed AIX removed it?
There is no good reason to do so, however.
Install it in this case from the AIX base DVD.
If it's there you should indeed see only one hdisk per LUN, and "lspath" should show you 4 paths per hdisk.
HDS has it's own (payable) multipath device driver called "HDLM", "Hitachi Dynamic Link Manager (Advanced)".
It has some features not present in IBM's native MPIO, but is (as far as I remember) not really cheap.
http://www.hds.com/products/storage-software/hitachi-dynamic-link-manager-advanced-software.html?WT.ac=us_mg_pro_dlma&_p=v
wmp
AIX's native multipathing support (MPIO) is normally active by default.
Run
lslpp -l devices.common.IBM.mpio.rt
to see if MPIO is actually there.
If it's missing - perhaps the person who installed AIX removed it?
There is no good reason to do so, however.
Install it in this case from the AIX base DVD.
If it's there you should indeed see only one hdisk per LUN, and "lspath" should show you 4 paths per hdisk.
HDS has it's own (payable) multipath device driver called "HDLM", "Hitachi Dynamic Link Manager (Advanced)".
It has some features not present in IBM's native MPIO, but is (as far as I remember) not really cheap.
http://www.hds.com/products/storage-software/hitachi-dynamic-link-manager-advanced-software.html?WT.ac=us_mg_pro_dlma&_p=v
wmp
Thanks. The devices.common.IBM.mpio.rt
For some reason I thought it was supposed to work natively which is why I was suprised it didn't.
lspath is not showing the four paths per hdisk though.
bash-3.2# lspath
Enabled hdisk0 sas0
Enabled hdisk1 sas0
Available ses0 sas0
Available ses1 sas0
Enabled hdisk0 sas1
Enabled hdisk1 sas1
Available ses0 sas1
Available ses1 sas1
bash-3.2# lsdev -Cc disk
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
hdisk2 Available 03-00-02 Other FC SCSI Disk Drive
hdisk3 Available 03-00-02 Other FC SCSI Disk Drive
hdisk4 Available 03-00-02 Other FC SCSI Disk Drive
hdisk5 Available 03-00-02 Other FC SCSI Disk Drive
hdisk6 Available 03-00-02 Other FC SCSI Disk Drive
hdisk7 Available 03-00-02 Other FC SCSI Disk Drive
hdisk8 Available 03-00-02 Other FC SCSI Disk Drive
hdisk9 Available 03-00-02 Other FC SCSI Disk Drive
hdisk10 Available 03-01-02 Other FC SCSI Disk Drive
hdisk11 Available 03-01-02 Other FC SCSI Disk Drive
hdisk12 Available 03-01-02 Other FC SCSI Disk Drive
hdisk13 Available 03-01-02 Other FC SCSI Disk Drive
hdisk14 Available 03-01-02 Other FC SCSI Disk Drive
hdisk15 Available 03-01-02 Other FC SCSI Disk Drive
hdisk16 Available 03-01-02 Other FC SCSI Disk Drive
hdisk17 Available 03-01-02 Other FC SCSI Disk Drive
hdisk18 Available 04-00-02 Other FC SCSI Disk Drive
hdisk19 Available 04-00-02 Other FC SCSI Disk Drive
hdisk20 Available 04-00-02 Other FC SCSI Disk Drive
hdisk21 Available 04-00-02 Other FC SCSI Disk Drive
hdisk22 Available 04-00-02 Other FC SCSI Disk Drive
hdisk23 Available 04-00-02 Other FC SCSI Disk Drive
hdisk24 Available 04-00-02 Other FC SCSI Disk Drive
hdisk25 Available 04-00-02 Other FC SCSI Disk Drive
hdisk26 Available 04-01-02 Other FC SCSI Disk Drive
hdisk27 Available 04-01-02 Other FC SCSI Disk Drive
hdisk28 Available 04-01-02 Other FC SCSI Disk Drive
hdisk29 Available 04-01-02 Other FC SCSI Disk Drive
hdisk30 Available 04-01-02 Other FC SCSI Disk Drive
hdisk31 Available 04-01-02 Other FC SCSI Disk Drive
hdisk32 Available 04-01-02 Other FC SCSI Disk Drive
hdisk33 Available 04-01-02 Other FC SCSI Disk Drive
bash-3.2#
Is there something else I need to do?
I will check out that that Hitachi link.
Any other ideas?
Thanks!
For some reason I thought it was supposed to work natively which is why I was suprised it didn't.
lspath is not showing the four paths per hdisk though.
bash-3.2# lspath
Enabled hdisk0 sas0
Enabled hdisk1 sas0
Available ses0 sas0
Available ses1 sas0
Enabled hdisk0 sas1
Enabled hdisk1 sas1
Available ses0 sas1
Available ses1 sas1
bash-3.2# lsdev -Cc disk
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
hdisk2 Available 03-00-02 Other FC SCSI Disk Drive
hdisk3 Available 03-00-02 Other FC SCSI Disk Drive
hdisk4 Available 03-00-02 Other FC SCSI Disk Drive
hdisk5 Available 03-00-02 Other FC SCSI Disk Drive
hdisk6 Available 03-00-02 Other FC SCSI Disk Drive
hdisk7 Available 03-00-02 Other FC SCSI Disk Drive
hdisk8 Available 03-00-02 Other FC SCSI Disk Drive
hdisk9 Available 03-00-02 Other FC SCSI Disk Drive
hdisk10 Available 03-01-02 Other FC SCSI Disk Drive
hdisk11 Available 03-01-02 Other FC SCSI Disk Drive
hdisk12 Available 03-01-02 Other FC SCSI Disk Drive
hdisk13 Available 03-01-02 Other FC SCSI Disk Drive
hdisk14 Available 03-01-02 Other FC SCSI Disk Drive
hdisk15 Available 03-01-02 Other FC SCSI Disk Drive
hdisk16 Available 03-01-02 Other FC SCSI Disk Drive
hdisk17 Available 03-01-02 Other FC SCSI Disk Drive
hdisk18 Available 04-00-02 Other FC SCSI Disk Drive
hdisk19 Available 04-00-02 Other FC SCSI Disk Drive
hdisk20 Available 04-00-02 Other FC SCSI Disk Drive
hdisk21 Available 04-00-02 Other FC SCSI Disk Drive
hdisk22 Available 04-00-02 Other FC SCSI Disk Drive
hdisk23 Available 04-00-02 Other FC SCSI Disk Drive
hdisk24 Available 04-00-02 Other FC SCSI Disk Drive
hdisk25 Available 04-00-02 Other FC SCSI Disk Drive
hdisk26 Available 04-01-02 Other FC SCSI Disk Drive
hdisk27 Available 04-01-02 Other FC SCSI Disk Drive
hdisk28 Available 04-01-02 Other FC SCSI Disk Drive
hdisk29 Available 04-01-02 Other FC SCSI Disk Drive
hdisk30 Available 04-01-02 Other FC SCSI Disk Drive
hdisk31 Available 04-01-02 Other FC SCSI Disk Drive
hdisk32 Available 04-01-02 Other FC SCSI Disk Drive
hdisk33 Available 04-01-02 Other FC SCSI Disk Drive
bash-3.2#
Is there something else I need to do?
I will check out that that Hitachi link.
Any other ideas?
Thanks!
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Just found that you must set host mode option "0F" when registering AIX servers in the AMS host group.
Has this been done? Don't know if this would really apply to AMS systems, however.
http://www.hitachi-storage.com/content/host-mode-option-settings
wmp
Has this been done? Don't know if this would really apply to AMS systems, however.
http://www.hitachi-storage.com/content/host-mode-option-settings
wmp
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Hey guys... have an answer
The "common" answer (via google and the first call to Hitachi) is to pay for Hitachi Dynamic Link Manager a.k.a. HDLM (Hitachi's version of EMC Powerpath)
Turns out that there is also a free AIX ODM update courtesy of Hitachi which runs over the native MPIO and this works.
Got it Kyle- instead of Hitachi's pay product HDLM (Hitachi Dynamic Link Manager) you just use these AIX ODM updates
Link here:
https://tuf.hds.com/gsc/bin/view/Main/AIXODMUpdates
The readme is in the zip file but the summary is:
1) In zip file there is a file HTC_MPIO_MODULAR_ODM_6000I
2) cd /usr/sys/inst.images
3) inutoc .
4) smitty install
Select and install the software (like normal installation)
5) Now lslpp will show:
bash-3.2# lslpp -l | grep -i hitachi
devices.fcp.disk.Hitachi.m
6.0.0.0 COMMITTED AIX MPIO Support for Hitachi
bash-3.2#
6) remove previous hitachi devices (they will say "Other FC SCSI Disk Drive" for example, like in my case)
rmdev -dl hdiskX
7) reboot AIX
8) lsdev -Cc disk will now show:
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
hdisk2 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk3 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk4 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk5 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk6 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk7 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk8 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk9 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
In my case now there are 8 disks, by default single path failover. Then I can proceed as normal.
Thanks guys for the tips on looking at the vendor, etc
The "common" answer (via google and the first call to Hitachi) is to pay for Hitachi Dynamic Link Manager a.k.a. HDLM (Hitachi's version of EMC Powerpath)
Turns out that there is also a free AIX ODM update courtesy of Hitachi which runs over the native MPIO and this works.
Got it Kyle- instead of Hitachi's pay product HDLM (Hitachi Dynamic Link Manager) you just use these AIX ODM updates
Link here:
https://tuf.hds.com/gsc/bin/view/Main/AIXODMUpdates
The readme is in the zip file but the summary is:
1) In zip file there is a file HTC_MPIO_MODULAR_ODM_6000I
2) cd /usr/sys/inst.images
3) inutoc .
4) smitty install
Select and install the software (like normal installation)
5) Now lslpp will show:
bash-3.2# lslpp -l | grep -i hitachi
devices.fcp.disk.Hitachi.m
6.0.0.0 COMMITTED AIX MPIO Support for Hitachi
bash-3.2#
6) remove previous hitachi devices (they will say "Other FC SCSI Disk Drive" for example, like in my case)
rmdev -dl hdiskX
7) reboot AIX
8) lsdev -Cc disk will now show:
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
hdisk2 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk3 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk4 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk5 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk6 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk7 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk8 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
hdisk9 Available 03-00-02 Hitachi MPIO Disk AMS.SMS.WMS (Fibre)
In my case now there are 8 disks, by default single path failover. Then I can proceed as normal.
Thanks guys for the tips on looking at the vendor, etc
SHORT VERSION: note that it is AIX native MPIO installed with a vendor ODM update so yes the native worked with an ODM update. Though I'm sure you get much more features with paid HDLM. Our sales rep even said we had to use HDLM. As did the first Hitachi engineer I talked to. So I don't think this AIX ODM update is that well known
Contributors helped me think where to look, ended up pointing me to the correct solution which I documented as my final comments.
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