Skip to contentSkip to conversation

RFC: Add WWN in superblock

DISCUSSION Jianpeng Ma 2 participants 2 messages Aug 13, 2012 MD RAID

lore
Share & tools
lore

Jianpeng Ma

author
#0 lore raw

Hi neil:
In mailist, many people ask the question about disk order.
But because the reboot or anthor probelm, the disk-name maybe change.
So we can't get disk-order.But if we can add WWN(Now,most harddisk has this attribute), we can find the orders anything.

Thanks!

#1 lore raw
Quoted 7 lines · On Mon, 13 Aug 2012 18:29:31 +0800 "Jianpeng Ma" <[email protected]> wrote:

Hi neil:
In mailist, many people ask the question about disk order.
But because the reboot or anthor probelm, the disk-name maybe change.
So we can't get disk-order.But if we can add WWN(Now,most harddisk has this attribute), we can find the orders anything.

Thanks!

What exactly do you propose doing with a WWN - how would you use it.

The metadata already contains enough information to determine the correct disk order.

NeilBrown