Re: Disk/Partitions under ASM DiskGroup

Hello Shiva,
I have like this. Do you know what does this 8 represent? 
The device driver (see below).

And what do the
first and second parameter represent? Any pointers? And one more thing if I can ask, how can determine if it is a partition or a disk itself? 9At least 
in this case, all of them are partitions).
The first entry listed (sda) is the device, the subsequent entries (sda1-15) are the partitions on the device. 

[root@lin1 dev]# ls -ltr | grep sda
brw-rw----  1 root disk     8,   0 Nov 17 12:35 sda
brw-rw----  1 root disk     8,   1 Nov 17 12:35 sda1
brw-rw----  1 root disk     8,   2 Nov 17 12:35 sda2

<SNIP>
The 8 is a major number and the numbers afterwards are called minor numbers. The major number represents the device driver (in this case SCSI), the minor number represents the instance (you can have many instances). 

You might find this link helpful;

http://publib.boulder.ibm.com/infocenter/dsichelp/ds8000ic/index.jsp?topic=/com.ibm.storage.ssic.help.doc/f2c_linuxdevnaming_2hsag8.html

<SNIP>

I am not sure how to tell if it is partitioned via fdisk or not.

Randy
You can tell that by the numbers on the end of the device (sda1 is the first partition, sda2 is the second and so on). 

Kind Regards,

Nathan Dietsch




> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
> On Behalf Of Shivaswamy Raghunath
> Sent: Friday, November 17, 2006 11:47 AM
> To: oracle-l@xxxxxxxxxxxxx
> Subject: Disk/Partitions under ASM DiskGroup
>
> Hello.
>
> I have not been able to find a view or a way to list the disk/disk
> partitions under an ASM Disk group, inside Oracle. Say, on my disk
group
> ORCL:VOL1, what are the disk partitions I have. (I know it is
/dev/sda5,
> /dev/sda6). But how do I list it?
>
> Can you help me?
>
> Thanks,
> Shiva





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