Thanks Sreejith. You provided me with the hint and I just configured and created the asmdisk with asmlib and there it was detected. I did not know that I have to configure asmlib before starting the installer. Thanks a lot. On Sat, Jan 1, 2011 at 11:11 PM, sundar mahadevan < sundarmahadevan82@xxxxxxxxx> wrote: > 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$ >> >> >