Re: What still uses the block layer?

Alan Cox wrote:

You can pull a Model and Serial number via hdparm -i, but it's not as
easy to manipulate as a fixed-length MAC address.  That's why people

tend to use filesystem UUID's.

ATA8 at the moment looks set to add a true "MAC" or "WWN" type identifier
to each device.. Right now model/serial is not always unique.

WWN was added in ATA-7, AFAICS.

However, I've seen quite a few ATA-7 devices that do not bother to fill it in. I wonder if ATA-8 device firmwares will act with similar slackness. :)

	Jeff



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• References:
  • What still uses the block layer?
    • From: Rob Landley <[email protected]>
  • Re: What still uses the block layer?
    • From: Rob Landley <[email protected]>
  • Re: What still uses the block layer?
    • From: Theodore Tso <[email protected]>
  • Re: What still uses the block layer?
    • From: Rob Landley <[email protected]>
  • Re: What still uses the block layer?
    • From: Theodore Tso <[email protected]>
  • Re: What still uses the block layer?
    • From: Alan Cox <[email protected]>

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