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What is LVMREC?

 
SM_3
Super Advisor

What is LVMREC?

What is LVMREC?

I'm sure it's part of the LVM header.

It's a term that I cannot see defined anywhere.
5 REPLIES 5
T G Manikandan
Honored Contributor

Re: What is LVMREC?

//*LVMREC The LVM record, which is an identifier that is set on each disk when it is initialized the first time by LVM. There are two copies of the LVMREC; one is at sector 8, while the other is at sector 72

*//
SM_3
Super Advisor

Re: What is LVMREC?

Mmm

Any more info.
sector 8 72???

What is contained in this identifier?
George Petrides_1
Honored Contributor

Re: What is LVMREC?

LVMREC contains info regarding the LVM info on a physical volume. When doing for example a vgscan, it actually reads the lvmrec labels from each drive and tries to put volume groups together. LVMREC is created by the pvcreate command and it can be re-initialized by the same command if the -f option is used (don't try this at home...). If you are curious, try the dd command against a raw disk drive and you'll see some of the contents of LVMREC.
Hope this helps,
George
Ken Hubnik_2
Honored Contributor

Re: What is LVMREC?

I got some hits on the search on www.docs.hp.com
Cheryl Griffin
Honored Contributor

Re: What is LVMREC?

defined here:
http://www.docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/5187-1372/5187-1372_top.html&con=/hpux/onlinedocs/5187-1372/00/00/37-con.html&toc=/hpux/onlinedocs/5187-1372/00/00/37-toc.html&searchterms=LVMREC&queryid=20021018-134532

"LVMREC The LVM record, which is an identifier that is set on each disk when it is initialized the first time by LVM. There are two copies of the LVMREC; one is at sector 8, while the other is at sector 72."

Cheryl
"Downtime is a Crime."