IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS

NTDEV
1

Hi,

can anybody give me a hint whether the physical extents
returned by IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS are in
logical order? I would assume they are as this ioctl is
sent to the (logical?) volume device, but no documentation
I could find on this ioctl anywhere is explicit about the
ordering in which the list of extents is returned.

Thanks lots in advance!

Christian

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2

No they aren’t. If u need to get the effective size of a logical volume then
use IOCTL_GET_PARTITION_INFO(which is also used by format command).The
ordering of physcial extents returned by
IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS is not guranteed to be any order.

Thanks,

Pashupati Kumar
Engineering - Celestra1.7
New Delhi, India.

xxxxx@legato.com
Ph: +91-11-6826622/410/846(ext-165)

----- Original Message -----
From: “Christian Bolik”
To: “NT Developers Interest List”
Sent: Saturday, June 16, 2001 2:39 AM
Subject: [ntdev] IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS

> Hi,
>
> can anybody give me a hint whether the physical extents
> returned by IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS are in
> logical order? I would assume they are as this ioctl is
> sent to the (logical?) volume device, but no documentation
> I could find on this ioctl anywhere is explicit about the
> ordering in which the list of extents is returned.
>
> Thanks lots in advance!
>
> Christian
>
> —
> You are currently subscribed to ntdev as: xxxxx@Legato.COM
> To unsubscribe send a blank email to leave-ntdev-$subst(‘Recip.MemberIDChar’)@lists.osr.com

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