Re: Disk/Partitions under ASM DiskGroup

Nathan,

I am so thankful to you! Wondeful explanation and very useful link!

Have a wonderful weekend.

Thanks,
Shiva

On 11/18/06, Nathan Dietsch <njd_at_ndietsch.com> wrote:
>
> 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_at_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_at_freelists.org
> >> [mailto:oracle-l-bounce_at_freelists.org]
> >> > On Behalf Of Shivaswamy Raghunath
> >> > Sent: Friday, November 17, 2006 11:47 AM
> >> > To: oracle-l_at_freelists.org
> >> > 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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