Didn't know that I had Zettabytes!

I was in the process of securely wiping some disks on a Linux box when I did a df and got the following output:

demo@x225:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 130G 2.7G 120G 3% /
none 1003M 372K 1003M 1% /dev
none 1007M 248K 1007M 1% /dev/shm
none 1007M 96K 1007M 1% /var/run
none 1007M 0 1007M 0% /var/lock
none 1007M 0 1007M 0% /lib/init/rw
none 130G 2.7G 120G 3% /var/lib/ureadahead/debugfs
/dev/sdb1 43Z 43Z 0 100% /u1
/dev/sdc1 4.0Z 4.0Z 0 100% /u2

The last two disks, sdb1 and sdc1 are being securely erased and they are reporting 43ZB and 4ZB respectively – yes, ZETTABYES. I really wish it was true!

According to Wikipedia, a zettabyte is “… is equal to 1,073,741,824 (~ 1 billion) terabytes” and “As of April 2012, no storage system has achieved one zettabyte of information. The combined space of all computer hard drives in the world was estimated at approximately 160 exabytes in 2006.”

About Mike Pelley

Let’s see… A little about me… I’ve been around information technology since 1983 with computers such as DEC Rainbows (weird machine – the standard DOS couldn’t format its own floppy disks – remember them? – and I had to format them on a friend’s IBM PC) to Radio Shack TRS-80 to Apple ][e and Apple //c in the beginning. I have programmed in 8-bit assembly language on 6502, FORTRAN and COBOL on IBM System/370 (and I still hate JCL), VAX BASIC and COBOL (and a weird and massive WordPerfect 4.0 macro) on DEC VMS (Alpha), C/C++ on Digital Unix (ALPHA), and C/C++, Perl (it may be powerful but I still hate it), PHP on Linux (Red Hat, Centos, Ubuntu, etc.). I have work with databases such as Digital RDB (later to become Oracle RDB), Oracle DBMS, Microsoft SQL Server, MySQL and PostgreSQL on VAX, Alpha, Sun and Intel. Check out my professional profile and connect with me on LinkedIn. See http://lnkd.in/nhTRZe I still think that Digital created some of the best ideas in the world: VAX clustering, DSSI disks (forerunner to SCSI) and the Alpha processor (first commercial 64-bit processor – Red Hat screamed on an Alpha!). DEC just could not seem to be able to give air conditioners away to someone lost in the Sahara Desert! VMware is one of the best ways to get the most out of an x64 server. And I have tried Oracle VM, Virtual Box and Microsoft Virtual Server. Outside of that I am a huge military history buff starting in the early 20th century. I love Ford Mustangs (my ’87 Mustang GT was awesome) and if I had the money I would have a Porsche 928S4. If I had a lot of money I would have a Porsche 911 Turbo. I also play too much AmrA 3 Exile mod. Over 5,000+ hours... I have a wonderful son, Cameron. I have a long suffering (Do you really need all that computer junk?) wife, Paula. I live in Paradise, Newfoundland and Labrador.
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