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тАО03-17-2009 01:22 PM
тАО03-17-2009 01:22 PM
Redundancy on DS2405
I have a DS2405 disk system with dual controllers connected to an rp7420 server (hpux 11.23). It currently has 2 disks, using mirrorux to mirror the 1st disk to the 2nd. I have 2 available fiber ports on this server, and I would like to have a redundant HW path if possible. How do do this (using PVlinks is assume)? thanks
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тАО03-17-2009 08:35 PM
тАО03-17-2009 08:35 PM
Re: Redundancy on DS2405
let's assume you connect only 1 cable first.
You will see 2 disks. Create your VG and LVOLs. Now connect the second cable. You will see "another" 2 disk devices. Now simply vgextend these devices to your existing VG and you will have your alternate pathes in vgdisplay (this is PVLINKS).
Hope this helps!
Regards
Torsten.
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тАО03-18-2009 03:46 AM
тАО03-18-2009 03:46 AM
Re: Redundancy on DS2405
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тАО04-01-2009 02:43 PM
тАО04-01-2009 02:43 PM
Re: Redundancy on DS2405
When I removed the 2nd cable, I now see two sets of paths, but there is only one cable - to port 0 on the first controller. I am attaching ioscan showing these paths. There are actually 4 disks, though only 2 are in use.
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тАО04-01-2009 07:53 PM
тАО04-01-2009 07:53 PM
Re: Redundancy on DS2405
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО04-02-2009 03:55 AM
тАО04-02-2009 03:55 AM
Re: Redundancy on DS2405
Check that the port 0 module on the side that shows NO_HW has good connectivity and link lights on both the server side and the 2405 side. Both sides of the 2405 should have identical status lights. Check your cables and SFPs in case any of them are bad. You can pull the SFPs from port 1 and use them in port 0 if one of them is bad. I do have a 2405 and port 1 does not even have SFPs installed and both controllers are set to 0 on the rotary switch. The two controllers are separate fabrics so the address being the same is not an issue.