can you use multipath with an EMC DMX via ficon?
how about an EMC Clarion via fiber?
Regards,
[EMAIL PROTECTED]
NCCI
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561.893.2415
greetings / avec mes meilleures salutations / Cordialmente
mit freundlichen Grüßen / Med vänlig hälsning
David Andrews
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om> cc:
Sent by: Linux on Subject: Re: LVM multipath
question
390 Port
<[EMAIL PROTECTED]
IST.EDU>
06/24/2005 12:57
PM
Please respond to
Linux on 390 Port
On Fri, 2005-06-24 at 12:15 -0400, Perry, Melissa wrote:
> We have a STK V960, a shark-like device.
Actually, it's an Iceberg derivative, nothing much like a shark.
> is there a way under linux to make linux think it has
> more than one path to one physical device?
When you say "physical device", do you mean real rotating media? Your
V960 sprinkles data associated with a specific device address across all
its arrays -- you don't allocate device addresses to specific drawers or
RAID5 sets. So you are already getting some unit separation.
As for simultaneous I/O to a logical device, I don't think your V960
supports PAV. Probably the closest you can come is to use LVM to stripe
your logical volumes across multiple S390 device addresses.
Check the archives for gobs of PAV and LVM discussion:
http://www.mail-archive.com/linux-390%40vm.marist.edu/
And not that it applies to your case, but there is a document that
discusses Linux, VM, LVM and PAV here:
ftp://www6.software.ibm.com/software/developer/linux390/docu/lx24pav00.pdf
--
David Andrews
A. Duda and Sons, Inc.
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