Googles Filesystem WAS : [ILUG] Google Job

[Justin MacCarthy]

Here are 2 interesting articles from my bookmarks on google, first is a
dicussion of the filesystem they use, the second on how the first version of
the search worked,



1) www.cs.rochester.edu/sosp2003/papers/p125-ghemawat.pdf (PDF viewer req)
2) http://www7.scu.edu.au/programme/fullpapers/1921/com1921.htm

Justin


-----Original Message-----
From: ilug-bounces at linux.ie [mailto:ilug-bounces at linux.ie]On Behalf Of
Conor Wynne
Sent: 02 April 2004 12:38
To: P at draigBrady.com
Cc: ilug at linux.ie
Subject: Re: [ILUG] Google Job


>>>El Reg reckons that 1GB of storage only costs Google circa $2. So, the
>>>scenario you mention is very plausible.
>>

Sounds wrong to me.

> and the maintenance costs (I wonder how many disks would be/are
> replaced a day in google), ....

The MTF for that many disks would be hours or even minutes ;--)
But then again they would be under warranty. Then you have maintenence
contracts, which can cost a pretty penny. 2 yoyo's a drive sounds like
wishfull thinking, or marketing.

Storage is bloddy expensive, and google would be using fibre arrays I
would imagine and they can cost millions - vendor depending.
But they have obviously thought this through, and its april 2nd so we know
its not bull ;--0

Conor Wynne
Dublin
Irlande.
--
Irish Linux Users' Group
http://www.linux.ie/mailman/listinfo/ilug/