- regarding disk signature
- Posted by qwert on January 16th, 2008
Hi,
I have few doubts in disk signature.
who assigns the disk signature??
Is there any rule in which it is assigned??
I have a storage array say clarion box.will each and every LUN have a
seperate disk signature,as for as I know many LUNs combine to make a clarion
box(correct me if I am wrong)
My application(not sure whether my driver or application)fails when the disk
signature in greater than a byte(8 bits)
can I change the disk signature manually if so how(just for testing purpose)
help me out!!!!
thanks in advance
- Posted by Maxim S. Shatskih on January 16th, 2008
Disk Management tool which creates the MBR table.
??? MBR signature is always 4 bytes, period.
--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com
- Posted by qwert on January 17th, 2008
6AE69D85-FA62-4471-A5A4-05D0D7815B07
4F131157
The above the diskID of my 2 disk.
when I try reading the first ID from my application I get error.The IOCTL
IOCTL_DISK_GET_DRIVE_LAYOUT fails.
Not sure whether there is fault in driver or application.The bug was
repeated in customer place.I wanted to have a disk which have longer
signature(signature 1).Is it possible to do that.I heard that dynamic disk
dive such long signatures.
whenever I create a partition in my harddisk the signature is of same kind
as 4F131157.
I want to have signatures of such kind
(6AE69D85-FA62-4471-A5A4-05D0D7815B07) to test
Hope I have explained correctly.
Thanks in advance
"Maxim S. Shatskih" wrote:
- Posted by qwert on January 17th, 2008
By the way I tried checking if any of my disk in my system has Diskid of form
6AE69D85-FA62-4471-A5A4-05D0D7815B07(more than 8 characters in length)
but I see all the diskIDs are of 8 characters in length (say 60b94986)
when will I get such long signatures.Is it only in dynamic disk I get such
signatures or in basic disks also.
I used diskpart utility to check the diskID
Thanks in advance
"qwert" wrote:
- Posted by Maxim S. Shatskih on January 17th, 2008
This is not an MBR disk, this is GPT or Dynamic disk.
--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com
- Posted by qwert on January 18th, 2008
Thank u Maxim.
ca I create a GPT partition style disk using dispart utility in my local
hard disk???
"Maxim S. Shatskih" wrote:
