Ethical Hacking Training at InfoSec Institute

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Computer Forensics Computer-Forensics
[Top] [All Lists]

Re: Reconstructing a Raid 0

Subject: Re: Reconstructing a Raid 0
Date: Mon, 15 Aug 2005 14:51:34 -0400
On Fri, 12 Aug 2005 12:27:41 +0200, Rik Bobbaers said:
raid0 means striping: +-50% of the data on one disk, 50% on the other, so if 
1 
disk fails, or the raid breaks, you'll lose everything!
raid1 is mirroring, which allows you to lose a disk and still retain all data

Note that "lose everything" is a relative term.

For production purposes, losing one disk of a RAID-0 pair *does* mean you've
effectively lost everything.

For forensic purposes, it means (simplifying *enormously*) that you have all
the even-numbered blocks, or all the odd-numbered blocks (depending which disk
you lost).  Effectively, you've just got handed half the capacity as slack 
space,
and can try to extract information on that basis....

Attachment: pgpaE7axKiM7a.pgp
Description: PGP signature

<Prev in Thread] Current Thread [Next in Thread>