Home » RDBMS Server » Server Administration » ASM Diskgroup State (Oracle 10.1.0.5, Solaris 10)
ASM Diskgroup State [message #347440] |
Thu, 11 September 2008 11:53 ![Go to next message Go to next message](/forum/theme/orafaq/images/down.png) |
deepmachine
Messages: 80 Registered: August 2008 Location: United States
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Member |
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I ran the following SQL:
SELECT
V.GROUP_NUMBER, V.NAME, V.SECTOR_SIZE,
V.BLOCK_SIZE, V.ALLOCATION_UNIT_SIZE, V.STATE,
V.TYPE, V.TOTAL_MB, V.FREE_MB
FROM SYS.V_$ASM_DISKGROUP V
...and got these results:
GROUP_NUMBER NAME SECTOR_SIZE BLOCK_SIZE ALLOCATION_UNIT_SIZE STATE TYPE TOTAL_MB FREE_MB
1 DATA 512 4096 1048576 CONNECTED EXTERN 204186 0
2 LOGS 512 4096 1048576 MOUNTED EXTERN
What can be the reasons that a diskgroup should run in MOUNTED state?
Also, why is not showing me any data against FREE_MB, and no data against second diskgroup?
Thanks!
[Updated on: Thu, 11 September 2008 11:55] Report message to a moderator
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Re: ASM Diskgroup State [message #347446 is a reply to message #347440] |
Thu, 11 September 2008 12:16 ![Go to previous message Go to previous message](/forum/theme/orafaq/images/up.png) ![Go to next message Go to next message](/forum/theme/orafaq/images/down.png) |
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Mahesh Rajendran
Messages: 10707 Registered: March 2002 Location: oracleDocoVille
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Senior Member Account Moderator |
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You must be running this query against the database instead of ASM instance.
It is one of those quirky things that drove me nuts and I never got a chance to look into further.
Long story short, connected means the database is actively using it.
You must be worried if the state is 'dismounted' or the other states.
try with AMS instance (using v$ instead of v_$) or
just try with
export ORACLE_SID=+ASM --+ASM1 OR ASM2 OR whatever in case of RAC
asmcmd lsdg
[Updated on: Thu, 11 September 2008 12:17] Report message to a moderator
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Re: ASM Diskgroup State [message #347459 is a reply to message #347446] |
Thu, 11 September 2008 13:42 ![Go to previous message Go to previous message](/forum/theme/orafaq/images/up.png) ![Go to next message Go to next message](/forum/theme/orafaq/images/down.png) |
deepmachine
Messages: 80 Registered: August 2008 Location: United States
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Member |
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Oh great.. it worked!
Here are the results.
$ export ORACLE_SID=+ASM1
$ sqlplus / as sysdba
SQL> set linesize 2000
SQL> SELECT
V.GROUP_NUMBER, V.NAME, V.SECTOR_SIZE,
V.BLOCK_SIZE, V.ALLOCATION_UNIT_SIZE, V.STATE,
V.TYPE, V.TOTAL_MB, V.FREE_MB
FROM SYS.V$ASM_DISKGROUP V;
GROUP_NUMBER NAME SECTOR_SIZE BLOCK_SIZE ALLOCATION_UNIT_SIZE STATE TYPE TOTAL_MB FREE_MB
------------ ------------------------------ ----------- ---------- -------------------- ----------- ------ ---------- ----------
1 DATA 512 4096 1048576 MOUNTED EXTERN 204186 137965
2 LOGS 512 4096 1048576 MOUNTED EXTERN 204186 203715
SQL>
Questions:
So, what's the difference between the ALLOCATION_UNIT_SIZE and TOTAL_MB?
My DB size (checked from EM) is 69G, and FREE_MB=137965 shows that I have alsmost 134G free. That means the max. size for my DISKGROUP=1 is 200G. If yes, then what's Allocation Unit Size?
Does this also mean that the total capacity of my ASM DISKGROUPS is 400G?
Also, why didn't the V$ASM_DISKGROUP show the information until the SID was set as +ASM1? I assume that information in views should remain the same regardless of the SID.
awaiting your reply...
Thanks again..
[Updated on: Thu, 11 September 2008 13:45] Report message to a moderator
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Re: ASM Diskgroup State [message #347639 is a reply to message #347461] |
Fri, 12 September 2008 08:52 ![Go to previous message Go to previous message](/forum/theme/orafaq/images/up.png) ![Go to next message Go to next message](/forum/theme/orafaq/images/down.png) |
deepmachine
Messages: 80 Registered: August 2008 Location: United States
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Member |
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Mahesh,
I had already gone through those links, and they don't have any significant information about the questions I had.
Any other material?
Thanks
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Re: ASM Diskgroup State [message #347816 is a reply to message #347651] |
Sun, 14 September 2008 04:12 ![Go to previous message Go to previous message](/forum/theme/orafaq/images/up.png) ![Go to next message Go to next message](/forum/theme/orafaq/images/down.png) |
deepmachine
Messages: 80 Registered: August 2008 Location: United States
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Member |
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I have a staging environment where I was trying to see the ASM disk space. I followed the same process of exporting the ORACLE_SID=+ASM1 and then running the SQL as mentioned in the above posts, and I get this error:
oracle@ora1-pstag:~$ export ORACLE_SID=+ASM1
oracle@ora1-pstag:~$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Sun Sep 14 05:05:16 2008
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to an idle instance.
SQL> set linesize 2000
SELECT
V.GROUP_NUMBER, V.NAME, V.SECTOR_SIZE,
V.BLOCK_SIZE, V.ALLOCATION_UNIT_SIZE, V.STATE,
V.TYPE, V.TOTAL_MB, V.FREE_MB
FROM SYS.V$ASM_DISKGROUP V;
SELECT
*
ERROR at line 1:
ORA-01034: ORACLE not available
But when I do it through ORACLE_SID=stage1, it gives me following results:
SELECT
V.GROUP_NUMBER, V.NAME, V.SECTOR_SIZE,
V.BLOCK_SIZE, V.ALLOCATION_UNIT_SIZE, V.STATE,
V.TYPE, V.TOTAL_MB, V.FREE_MB
FROM SYS.V$ASM_DISKGROUP V;
GROUP_NUMBER NAME SECTOR_SIZE BLOCK_SIZE ALLOCATION_UNIT_SIZE STATE TYPE TOTAL_MB FREE_MB
------------ ------------------------------ ----------- ---------- -------------------- ----------- ------ ---------- ----------
1 DATA 512 4096 1048576 CONNECTED EXTERN 102352 32255
2 LOGS 512 4096 1048576 CONNECTED EXTERN 102352 2734
SQL>
What's the difference, what's going on?
Thanks.
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Re: ASM Diskgroup State [message #348728 is a reply to message #347440] |
Wed, 17 September 2008 16:01 ![Go to previous message Go to previous message](/forum/theme/orafaq/images/up.png) |
mjshank
Messages: 6 Registered: August 2007
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Junior Member |
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If you like, send me the ASM entry in your oratab and I will send you a script to provide the results below:
$ asmreview.ksh
Reporting ASM stats...
Date
----------------------------------------
Report Date: 17-SEP-2008 04:54:28
Instance Version SGA MG PGA MG Total RAM MB
------------------------ --------------- ---------- ---------- ------------
@ +ASM 10.2.0.3.0 500 25 525
NAME PATH TOTAL_MB FREE_MB READS WRITES MOUNT_STATUS
--------------- -------------------------------- ------------ ------------ ---------- ---------- ------------
DATA_0003 /u01/crs/oracle/ora_links/asm200 153,588 70,915 1312927 1356888 CACHED
DATA_0004 /u01/crs/oracle/ora_links/asm201 153,588 70,915 744480 789337 CACHED
DATA_ETL_0000 /u01/crs/oracle/ora_links/asm100 102,386 45,757 152138 406310 CACHED
DATA_ETL_0001 /u01/crs/oracle/ora_links/asm101 102,386 45,771 120320 214067 CACHED
DATA_ETL_0002 /u01/crs/oracle/ora_links/asm102 102,386 45,769 128436 204394 CACHED
DATA_ETL_0003 /u01/crs/oracle/ora_links/asm103 102,386 45,772 92163 226359 CACHED
FRA_0001 /u01/crs/oracle/ora_links/asm300 51,187 50,600 132665 1093950 CACHED
------------ ------------
sum 767,907 375,499
7 rows selected.
michael dot shank at mpiresearch.com
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