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List:       aix-l
Subject:    Re: File on which LP
From:       Hans-Dieter Kutz <hdkutz () HDKUTZ ! DE>
Date:       2006-09-15 16:01:01
Message-ID: 20060915160030.GK30139 () pago ! de
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On Fri, Sep 15, 2006 at 11:33:03AM -0400, Paul Guglielmino wrote:
> Sorry. Here's take 2, hit send too fast.
> 
> Interesting question. I'm not sure if this works (or if there is a better way
> - which there probably is) but here's a stab at it using /etc/passwd as an
> example. Some output delete for easier reading.
> 
> 1. fileplace -p /etc/passwd
> File: /etc/passwd  Size: 53603 bytes  Vol: /dev/hd4
> Blk Size: 4096  Frag Size: 4096  Nfrags: 14   Compress: no
> 
>   Physical Addresses (mirror copy 1)                                   Logical
> Fragment
>   ----------------------------------
> ----------------
>   11449289-11449292  hdisk0            4 frags    16384 Bytes,  28.6%
> 0111017-0111020
>   11449299-11449308  hdisk0           10 frags    40960 Bytes,  71.4%
> 0111027-0111036
> 
> 2. frag size = 4k and starting frag is 0111017. 0111017*4/1024 = 433M. The
> file starts 433M into the filesystem.
> 
> 3. Run lspv hdisk0 to get PP size.
> lspv hdisk0
> PP SIZE:            128 megabyte(s)
> 
> 4. lslv -m hd4
> hd4:/
> LP    PP1  PV1               PP2  PV2               PP3  PV3
> 0001  0329 hdisk0            0329 hdisk1
> 0002  0330 hdisk0            0330 hdisk1
> 0003  0331 hdisk0            0331 hdisk1
> 0004  0350 hdisk0            0350 hdisk1
> 0005  0365 hdisk0            0365 hdisk1
> 0006  0366 hdisk0            0366 hdisk1
> 0007  0367 hdisk0            0367 hdisk1
> 0008  0368 hdisk0            0368 hdisk1
> 0009  0369 hdisk0            0369 hdisk1
> 
> This is a map of LPs to PPs. 433M into the file at 128M/PP means you are on
> the 4rd PP (0350) of the filesystem to get the file. That translates into LP4
> in our example. (433/128 = 3.38 which is just past PP 3)
> 
> What do others think? Does this sound correct? Is there a better way?
> 
> Very interesting question!
> 
> Paul
Thanx for the quick answer.
Thumbling over some hotspot Reports from lvmstat of an Oracle Database on
JFS2. Just want to know what lies on my hotspot-LV's to move them to another
Disk.

Cheers,
ku

-- 
http://www.hdkutz.de
Luke Skywalker:
	How did my father die?
Ben (Obi-Wan) Kenobi:
	A young Jedi named Darth Vader, who was a pupil
	of mine until he turned to evil, helped the
	Empire hunt down and destroy the Jedi knights.
	He betrayed and murdered your father.
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