Mike, I think you need to address your PAV concerns to [EMAIL PROTECTED]
They're the developers and they say that PAV's are not supported.
Regards, Jim
Linux S/390-zSeries Support, SEEL, IBM Silicon Valley Labs
t/l 543-4021, 408-463-4021, [EMAIL PROTECTED]
*** Grace Happens ***
Michael
MacIsaac/Poughkeepsi To: [EMAIL PROTECTED]
e/[EMAIL PROTECTED] cc:
Sent by: Linux on Subject: Re: Parallel Access
Volumes with SLES7
390 Port
<[EMAIL PROTECTED]
.EDU>
06/20/2003 06:58 AM
Please respond to
Linux on 390 Port
> We are considering doing a write up how to use PAV under z/VM using LVM
> (requires SLES 8). Under LPAR we currently don't have the necessary Linux
> support in place.
>
> Would be good to hear from you how important you consider it.
My two cents:
What would be good to know is the best way to exploit the famed zSeries I/O
capabilities. I have questions like:
- How many PAV "paths" should I use for optimal I/O?
- What does the IOCDS configuration look like?
- What has to be done differently on the z/VM user ID?
- On Linux, does the logical volume still have to be striped?
- Can I have a non-striped logical volume with PAV and still get an I/O
performance boost?
- If so, can the logical volume be extended with vgextend?
- Can I have a 1TB logical volume with PAV?, 2TB?
Such a HOWTO would be a great resource for the zLinux community!
-Mike MacIsaac, IBM mikemac at us.ibm.com (845) 433-7061
