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Dec 21, 2006

Solaris ZFS Tips & Tricks

Configure the /devices directory to make physical disks available for use:

# drvconfig

Creates /dev entries for hard disks attached to the system:

# disks

List available disks and format them:

# format

You can activate the ZFS web gui:

# /usr/sbin/smcwebserver start

Access it via your browser:

https://:6789

Create a mirrored disk:

/usr/sbin/zpool create -f testfs mirror c0d1 c1d1

Replace device in mirror:

/usr/sbin/zpool replace -f testfs c1d1

Create the snapshot:

/usr/sbin/zfs snapshot testfs@test_snap

Access a snapshot through the .zfs/snapshot directory at the root of the filesystem.

Excellent ZFS cheat-sheet over at Unix Admin Corner.

A useful step-through for adding disks to Solaris over at KernelTrap.

Great blog with tips on using Zones with ZFS and securing your Solaris system - Clingan.

[/tech/unix/solaris] | [permalink] | [2006.12.21-22:24.00]

Data Visualisation

A couple of really interesting data visualisation blogs -

* Infosthetics - look for the Information Cocktail which mixes a drink based on events (in this case a Netherlands/Germany soccer match).

* Datamining - interesting charts based on publicly available data - check the GIS section for some 3d mapping comparisons between Google Earth, Microsoft Virtual Earth, Yahoo Maps etc

[/misc] | [permalink] | [2006.12.21-21:22.00]

Taxes + More

Looks like we may get a $10 a week tax cut. Rod Dury (of Aftermail/Archivemail fame) points out that from a business perspective giving some tax breaks may improve the economy as it would increase spending/saving and provides an interesting chart which indicates NZer's work harder but are less productive than their OECD counterparts (debunked in the comments). Rod also links to an amusing tale of the way taxation works in terms of dis-enchanting high-income earners. I always thought once you got to a certain income level it just meant you ended up getting an accountant who could do some creative tax avoision (smash together avoidance & evasion) so you pay less tax anyway ?

Handy - 10 Good Unix Habits.

Interesting - How Microsoft deals with network attacks.

Classic - You Park Like An Asshole. Someone needs to come up with some of these sites in NZ so people can send pxts of moronic behaviour - youdrivelikeanidiot.co.nz / suicidalcyclists.co.nz / insanepedestrian.co.nz / suvdriversfeelinadequate.co.nz. I wonder when cars will come with built in cameras to record trips ?

Definitely need to get a decent turntable - Walt Mossberg reviews two Vinyl to CD turntables. Bet they're direct drive (evil) rather than belt (good) . . .

Interesting - Brian Eno - 77 Million Paintings. Looks like a great way to use a plasma screen while its idling :-)

[/links/2006] | [permalink] | [2006.12.21-00:06.00]