I have 2x3TB disks with GPT and a zpool with uses a 2.7TB partition on the first disk (sda4) and 1TB on the second disk (sdb4).
Reason is that initially both disks were just 1TB and I sequentially replaced both of them with 3TB. But during the time I had 1x1TB and 1x3TB I used the remainder of the 3TB for a different partition which I want to delete now.
I use the latest ZFS on Linux (0.6.5.7-8-wheezy). What is the correct way to resize the pool to the full 2.7TB?
autoresize is currently off. This is the current output of
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 2,7T 0 disk ├─sda1 8:1 0 1M 0 part ├─sda2 8:2 0 14,5G 0 part │ └─md0 9:0 0 14,5G 0 raid1 / ├─sda3 8:3 0 4,2G 0 part │ └─md2 9:2 0 4,2G 0 raid1 [SWAP] └─sda4 8:4 0 2,7T 0 part sdb 8:16 0 2,7T 0 disk ├─sdb1 8:17 0 1M 0 part ├─sdb2 8:18 0 14,5G 0 part │ └─md0 9:0 0 14,5G 0 raid1 / ├─sdb3 8:19 0 4,2G 0 part │ └─md2 9:2 0 4,2G 0 raid1 [SWAP] ├─sdb4 8:20 0 912,9G 0 part └─sdb5 8:21 0 1,8T 0 part # zpool status pool: zpradix1imain state: ONLINE status: Some supported features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(5) for details. scan: resilvered 687G in 6h2m with 0 errors on Fri Dec 26 18:39:27 2014 config: NAME STATE READ WRITE CKSUM zpradix1imain ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ata-WDC_WD30EZRZ-00WN9B0_WD-WCC4E7CL5U9D-part4 ONLINE 0 0 0 ata-WDC_WD30EZRX-00D8PB0_WD-WMC4N0E6K1AW-part4 ONLINE 0 0 0
As a first step, I would delete sdb5 and resize sdb4 (via gdisk) to 2.7TB and rescanning the partition table (both disks would have identical partition layout then).