On 12:26 Wed 30 Mar     , A. Khattri wrote:
> On Wed, 30 Mar 2005, Bill Roberts wrote:
> 
> > The only thing they have missed, IMHO, are Western Digital's SATA
> > drives. I have two of their 10,000 rpm  Raptors running on a RAID0, my
> > machine screams. These are Western Digital's effort to break into the
> > commercial, i.e., scsi, market, and are, by all reports, rugged and
> > reliable.
> 
> Hmmm... doesn't RAID 0 stripe across the disks? If so, then doesn't that
> mean if one drive fails the whole RAID array is hosed?
> 
> So maybe you're using this purely performance reasons?
> 
Exactly.

It took me a while to figure out that what I need is speed, not
redundancy. I am not running websites that require five nines
(99.999%) of uptime. I do need to protect my data, which I do by
backups, but on a day to day basis, what I want is speed.

Compiling is not only cpu intensive, but involves a great deal of
read/write. Show me any other way you can easily get the following
numbers from hdparm:

/dev/md0:
 Timing cached reads:   2868 MB in  2.00 seconds = 1432.78 MB/sec
  Timing buffered disk reads:  410 MB in  3.01 seconds = 136.05 MB/sec

Bill Roberts

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