ASM Configuration in Oracle 10g

[Siva Prasad]

I am trying to configure ASM for one of my database. I selected the ASM option in DBCA. It successfully created the ASM instance it does not show any disks for selection. I have a disk from the XP array. So Do i need to do any configuration on the disk to appear in DBCA wizard. I am doing it in HPUX 11.11 PA risc machine. Pleas help me ?

Thanks in advance,
Siva

[Arunvijai_4]

Hi Siva,

http://www.oracle.com/technology/pub/articles/smiley_10gdb_install.html
http://www.puschitz.com/InstallingOracle10gRAC.shtml

-Arun

[Siva Prasad]

Hi Arun,
I want the command sspecific to HPUX . The documents u specified refers to linux. Which is the depot i need to install on HPUX for ASM

Regards,
Siva Prasad

[Arunvijai_4]

Hi Siva,

Some more links of HP-UX specific,

http://h71028.www7.hp.com/enterprise/downloads/Oracle_10g_ASM_w_HP_StorageWorks_Arrays_on_HP-UX.pdf
http://h71028.www7.hp.com/ERC/downloads/4AA0-2030ENW.pdf
http://forums.oracle.com/forums/thread.jspa?threadID=335854&tstart=30

-Arun

[Steven E. Protter]

Siva,

A few docs that deal with HP-UX specifically.

http://h71028.www7.hp.com/enterprise/downloads/Oracle_10g_ASM_w_HP_StorageWorks_Arrays_on_HP-UX.pdf

http://h71028.www7.hp.com/ERC/downloads/4AA0-2030ENW.pdf

Probably very good.
http://www.mindiq.com/ilt/database/dp250.php

http://www.mcse.ms/archive26-2005-2-1432649.html

You need to consult metalink.oracle.com for specifics on depots and patches required for this.

HP-UX ASM patches
http://www1.itrc.hp.com/service/patch/search.do?BC=patch.breadcrumb.main|&pageContextName=hpux:::
Search for ASM

Always pays to read the question prior to posting links.

I hope these help.

SEP

[Yogeeraj_1]

hi siva,

see also metalink note: 265633.1 ASM Technical Best Practices

It is stated that disks (e.g. c3t19d5s4, c3t19d16s4, c3t19d17s4, c3t19d18s4) should be identified, and their ownership set to the correct â oracle:dbaâ .

Also, these disks can be defined in the init.ora parameter, asm_diskstring.

e.g.
*.asm_diskstring='/dev/rdsk/c3t19d*s4'.

When ASM scans for disks, it will use that string, and find any devices that it has permissions to open.

Upon successful discovery, the V$ASM_DISK view on the ASM instance, will now reflect which disks were discovered. Note, henceforth, all views, unless otherwise stated, are examined from the ASM instance and not from the database instance.

hope this helps too!

kind regards
yogeeraj

[Bob_Vance]

1) Be sure to use the raw device names
2) Be sure ownership and perms are correct.

This is what I do (on all nodes):

1) I create a directory

## mkdir /dev/oracle

2) Then I make symbolic links from from within there to the actual raw disk device names

## ln -s /dev/rdsk/c4t0d0 /dev/oracle/rawCSSVotingDisk
## ln -s /dev/rdsk/c4t0d1 /dev/oracle/rawOCR_File
## ln -s /dev/rdsk/c4t0d2 /dev/oracle/gp1ASM1
## ln -s /dev/rdsk/c4t0d3 /dev/oracle/gp1ASM2

3) Change own/perms (I do both the link and the target).

## chown -h oracle:dba /dev/oracle/*
## chown oracle:dba /dev/oracle/*
## chown -h root:oinstall /dev/oracle/rawOCR_File
## chown root:oinstall /dev/oracle/rawOCR_File
## chmod 660 /dev/oracle/*
## chmod 640 /dev/oracle/rawOCR_File


## ll /devoracle/
lrwxrwxrwx 1 oracle dba ......... gp1ASM1 -> /dev/raw/raw3
lrwxrwxrwx 1 oracle dba ......... gp1ASM2 -> /dev/raw/raw4
lrwxrwxrwx 1 oracle dba ......... rawCSSVotingDisk -> /dev/raw/raw2
lrwxrwxrwx 1 root.. oinstall ..... rawOCR_File -> /dev/raw/raw1


Now, I can reference the devices with convenient names and know exactly which are for what.
For example, the ASM discovery string for disk group1 would simply be:

/dev/oracle/gp1ASM*


bv

[tcsa]

I you have a chance check this site too.


http://dizwell.com/main/content/view/76/116/