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[zfs-discuss] Online zpool expansion feature in Solaris 10 9/10

Subject: [zfs-discuss] Online zpool expansion feature in Solaris 10 9/10
From: James Patterson
Date: Tue, 12 Oct 2010 23:14:38 PDT
Iâm testing the new online zpool expansion feature of Solaris 10 9/10.  My 
zpool was created using the entire disk (ie. no slice number was used).  When I 
resize my LUN on our SAN (an HP-EVA4400) the EFI label does not change.

On the zpool, I have autoexpand=on, and Iâve tried using zpool online âe.  But 
of course, unless the EFI label gets updated in response to the LUN size 
change, the higher layers (zpool, zfs) will see no change.

Bug ID 6475340 (âZFS needs to write a new EFI label describing the new size, 
before it can use the new space)â was meant to fix this â and a fix was 
delivered in the 09/10 kernel patch 142909-17 which Iâm running.

Is the design of these changes such that itâs meant to automatically update the 
EFI label?
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