Re: Disks not detected during ASM setup 11gR2
- From: sundar mahadevan <sundarmahadevan82@xxxxxxxxx>
- To: Sreejith Nair <sreejithsna@xxxxxxxxx>
- Date: Sat, 1 Jan 2011 23:11:19 -0500
Hi Sreejith,
Thanks for the info on grid home. Yes, I installed ASMlib but are there any
configurations to make the LUN as a candidate disk? So should I do it before
I run the grid installer? Please confirm. Thanks.
On Sat, Jan 1, 2011 at 10:05 PM, Sreejith Nair <sreejithsna@xxxxxxxxx>wrote:
> Hi Sundar,
> I have just started to setup 11gR2 RAC on 2 Linux boxes with 100gb. lun
> SAN. With 11gR2, there are a few changes like
> 1. ASM,OCR and VD is part of a single home called grid home.
> 2. Database software binaries in ORACLE_HOME.
> I have just downloaded ASMlib to mark my LUN as a candidate disk,so that my
> grid infrastructure installation could detect it. However I did not try that
> yet. Did you try with ASMlib?
>
> Cheers,
> SSN
> -- Sreejith Nair
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
>
> "sundar mahadevan" <sundarmahadevan82@xxxxxxxxx> wrote:
>
> >Hi All,
> >Wish you all a very happy new year. I am trying to setup a 11gR2 non
> >RAC
> >with ASM on OEL 5.4 I am having trouble setting up ASM. I have an ACER
> >laptop with 4GB RAM and 320 GB hard drive each. Would appreciate if you
> >could help me with the following:
> >
> >1) ASM is defined as a feature. So is there a file system underneath or
> >is
> >it working on raw devices? I did not find a straight answer for this.
> >2) To setup 11gR2 RAC with ASM and 11gR2 NON RAC with ASM, am I correct
> >in
> >understanding that 2 separate binaries are required on 2
> >laptops/servers
> >meaning there will be 4 oracle homes: 1 for ASM, 1 for RAC binary, 1
> >for Non
> >RAC binary, 1 for clusterware
> >3) I installed a 11gR2 non rac binary successfully (just the software
> >no
> >database). Now I am trying to install ASM with grid infrastructure
> >runinstaller. My disks are not detected at this stage. The default OS
> >setup
> >came with 4 logical volumes and I created a logical volume LogVol04 of
> >size
> >105GB to be used for ASM. I used iscsi initiator and detected it as
> >/dev/sdb. What am I doing wrong here. Should n't /dev/sdb1 be detected
> >by
> >asm for disks? Please advice. Many Thanks for your help.
> >
> >*Before iscsi initiator start:
> >*
> >root@sunny2 /root$ fdisk -l
> >
> >Disk /dev/sda: 320.0 GB, 320072933376 bytes
> >255 heads, 63 sectors/track, 38913 cylinders
> >Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/sda1 * 1 13 104391 83 Linux
> >/dev/sda2 14 38913 312464250 8e Linux LVM
> >root@sunny2 /root$
> >
> >*After iscsi initiator start:*
> >
> >root@sunny2 /root$ fdisk -l
> >
> >Disk /dev/sda: 320.0 GB, 320072933376 bytes
> >255 heads, 63 sectors/track, 38913 cylinders
> >Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/sda1 * 1 13 104391 83 Linux
> >/dev/sda2 14 38913 312464250 8e Linux LVM
> >
> >Disk /dev/sdb: 104.8 GB, 104857600000 bytes
> >255 heads, 63 sectors/track, 12748 cylinders
> >Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/sdb1 1 12748 102398278+ 83 Linux
> >root@sunny2 /root$
> >
> >
> >root@sunny2 /root$ ll /dev/VolGroup01/*
> >lrwxrwxrwx 1 root root 31 Jan 1 17:40 /dev/VolGroup01/LogVol00 ->
> >/dev/mapper/VolGroup01-LogVol00
> >lrwxrwxrwx 1 root root 31 Jan 1 17:40 /dev/VolGroup01/LogVol01 ->
> >/dev/mapper/VolGroup01-LogVol01
> >lrwxrwxrwx 1 root root 31 Jan 1 17:40 /dev/VolGroup01/LogVol02 ->
> >/dev/mapper/VolGroup01-LogVol02
> >lrwxrwxrwx 1 root root 31 Jan 1 17:40 /dev/VolGroup01/LogVol03 ->
> >/dev/mapper/VolGroup01-LogVol03
> >lrwxrwxrwx 1 root root 31 Jan 1 17:40 /dev/VolGroup01/LogVol04 ->
> >/dev/mapper/VolGroup01-LogVol04
> >root@sunny2 /root$
>
>
Other related posts:
