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- Newsgroups: comp.unix.aix
- Path: sparky!uunet!ddssuprs!fred
- From: fred@dickens.com (Fred R Stearns)
- Subject: Re: What is the VGID file in /etc/vg for?
- Message-ID: <1992Sep9.112538.24077@dickens.com>
- Date: Wed, 9 Sep 1992 11:25:38 GMT
- References: <Sep.3.12.58.34.1992.26976@gauss.rutgers.edu> <1992Sep4.223733.1530@awdprime.austin.ibm.com>
- Organization: Dickens Data Systems, Inc.
- Keywords: On exportvg should /etc/vg/vg<id_of_exported_vg> be removed?
- Lines: 34
-
- In article <1992Sep4.223733.1530@awdprime.austin.ibm.com> julie@levell.austin.ibm.com (Julie L. Craft) writes:
- >In article <Sep.3.12.58.34.1992.26976@gauss.rutgers.edu> manmetha@gauss.rutgers.edu (Rajesh Malhotra) writes:
- >>
- >>Fellow AIXers,
- >>
- >> The directory /etc/vg contains a file vg<VGID> for each
- >>of the VG in the system. What is this file for? Does'nt all the VG related
- >>info reside in the ODM?
- >
- > No, it contains basically a copy of the VGDA that is on
- > the disk. This file is maintained by liblvm.a for faster
- > response on lvm commands. That way you don't have to
- > go to the disk every time for a query. If you remove this
- > file it will be automatically rebuilt the next time you
- > run an LVM command.
-
- Now that's silly. Instead of going to the disk to get the VGDA,
- you go to the disk to get the VGDA. Okay, Okay, so maybe it will
- be buffered up in physical memory by jfs and the vmm, but it
- would seem that it would only stay buffered if you were accessing
- it alot.
-
- >
- > Later,
- > Julie
- >--
- >*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
- >Julie Levell Craft IBM AUSTIN,TX Internet: julie@aixwiz.austin.ibm.com
- >IBMNET: JULIEL at AUSVM6 2F-007/903 (512) 838-2677 (Tie 678-2677)
- >"I'm not getting defensive!"
-
- --
- Fred R. Stearns -- fred@dickens.com
- Everything's a kludge!
-