Hi all,
Can anyone explain to me, or point me to any docs that explain how the
following numbers map together?
I have multiple LUNS exported to my HBA's from multiple EMC arrays.
zpool status, and /dev/dsk show device names like:
c0t6006048000038794003753594D333837d0 ONLINE 0 0 0
c0t6006048000038794003753594D333838d0 ONLINE 0 0 0
c0t6006048000038794003753594D333839d0 ONLINE 0 0 0
c0t6006048000038794003753594D333841d0 ONLINE 0 0 0
c0t6006048000038794003753594D333842d0 ONLINE 0 0 0
c0t6006048000038794003753594D333843d0 ONLINE 0 0 0
c0t6006048000038794003753594D333844d0 ONLINE 0 0 0
but cfgadm shows disk names like:
c4::5006048dc7dfb170
c5::5006048dc7dfb17e
c7::5006048dc7dfb17e
How do these numbers break down?
I noticed the zpool or /dev/dsk nubmers all have a 'D' in them, what is
represented by the number after the 'D'?
What is the number before the 'D' made up from?
I'm guessing at least part of the number befre the 'D' comes from the
WWN of the array? Does part come from the Disk in the array? or does the
array make up part of it so that that part is unique to the LUN? Or is
all the LUN info in the number after the 'D'?
I've also noticed that if you change the leading 5 in the cfgadm output,
to a 6, then the first 7 digits of cfgadm output match up with the first
7 digits of Y in the cXtYdZ number. I've tried converting the remainder
'dc7dfb170' from Hex to Dec, and I don't get anythign that even
resembles the '000038794003753594' part of the target.
How does this work?
These LUNs are all 11GB slices from the EMC Arrays which are filled with
146GB drives. Since this is a lab environment I beleive the EMC arrays
are configured with no redundancy. What I'd like to know, is how can I
tell which LUNs might live on the same physical drives?
-Kyle
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