Sam Smoot sam

sam / gist:1607465

Created January 13, 2012 16:50

GeminaboxPlus Setup on OSX/JRuby

	brew install redis
	redis-cli hset services resque '["localhost"]'
	jgem install rack -v1.3.6
	jgem install jruby-rack -v1.1.1
	jgem install trinidad -v1.2.3
	git clone git://github.com/sam/geminaboxplus.git
	cd geminaboxplus
	bundle install --path vendor
	rake resque:work &
	GEMINABOX_DATA="$(pwd)/data" jruby -S trinidad

sam / gist:1622208

Created January 16, 2012 18:32

Creating a swap volume for SmartOS

	# Make sure that the swap volume is the same size as your available RAM or
	# you'll have trouble starting as many guests as you think you should have
	# RAM for.
	zfs create -oprimarycache=none -osecondarycache=none -V256G zones/swap

sam / gist:1622225

Created January 16, 2012 18:35

Move a single-disk zpool to another disk

	# Attach your new "spare" device (c0t1d0 in this example)
	# to your existing device (c0t0d0) as a mirror:
	zpool attach zones c0t0d0 c0t1d0
	# Wait until `zpool status` says resilvering is complete, then:
	zpool detach zones c0t0d0

sam / gist:1622239

Created January 16, 2012 18:37

Move dump device to a dedicated disk

dumpadm -d /dev/dsk/c0t2d0

sam / gist:1622242

Created January 16, 2012 18:38

Create new, target spool for guests with "backup" name.

	zpool create backup \
	spare c1t0d0 c1t1d0 c1t2d0 \
	raidz2 c1t3d0 c1t4d0 c1t5d0 c1t6d0 c1t7d0 c1t8d0 c1t9d0 \
	raidz2 c1t10d0 c1t11d0 c1t12d0 c1t13d0 c1t14d0 c1t15d0 c1t16d0 \
	raidz2 c1t17d0 c1t18d0 c1t19d0 c1t20d0 c1t21d0 c1t22d0 c1t23d0

sam / gist:1622261

Created January 16, 2012 18:42

Backup your "zones" spool.

	zfs snapshot -r zones@backup
	zfs send -R zones@backup \| zfs recv -Fd backup

sam / gist:1622264

Created January 16, 2012 18:43

Destroy existing zones zpool

	zpool destroy -f zones
	# If that doesn't work because some filesystems are still in use, run:
	zfs destroy -fr zones
	# That will force unmount and destroy all the filesystems.
	# Then try destroying the zpool again.

sam / gist:1622268

Created January 16, 2012 18:44

Rename a pool by exporting it and reimporting under a new name.

	zpool export backup
	zpool import backup zones

sam / gist:1622273

Created January 16, 2012 18:45

Add a spare to a zpool

zpool add zones spare c1t0d0

sam / gist:1622279

Created January 16, 2012 18:46

Example spool status