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тАО11-09-2005 02:27 PM
тАО11-09-2005 02:27 PM
What difference between small PE size and big PE size?
I sam the default PE size in vg00 is 4MB,but if I modify it ,the size can extend to 8 or 16 ... . I want to know if I extend the size of the PE ,the big PE can improv the performance. in othe words, if different PE size can affect the performance .
Thanks for your help.
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тАО11-09-2005 02:44 PM
тАО11-09-2005 02:44 PM
Re: What difference between small PE size and big PE size?
I don't think a big PE size can provide a performance improvement.
But when you create a vg by large disks, you have to increase the PE size, that not for a good performance, but for the limitation of the PE number per disk.
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тАО11-09-2005 03:11 PM
тАО11-09-2005 03:11 PM
Re: What difference between small PE size and big PE size?
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тАО11-09-2005 11:53 PM
тАО11-09-2005 11:53 PM
Re: What difference between small PE size and big PE size?
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тАО11-09-2005 11:58 PM
тАО11-09-2005 11:58 PM
Re: What difference between small PE size and big PE size?
Many have asked including myself.
There is no evidence that increasing PE size helps performance. It can help with PE allocation issues but there are better ways to do that with vgcreate.
Good Luck,
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
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Founder http://newdatacloud.com