[Asterisk-Users] RAID affecting X100P performance...

[Andrew Kohlsmith]

On Thursday 22 July 2004 05:46, Kevin Walsh wrote:

Some datapoints of my own:

Supermicro motherboard, single Xeon 2.6 (HT), software RAID1 on SCSI  using 
Seagate ST39173LC drives:

# hdparm -tT /dev/md0

/dev/md0:
 Timing buffer-cache reads:   128 MB in  0.36 seconds =355.56 MB/sec
 Timing buffered disk reads:  64 MB in  2.94 seconds = 21.77 MB/sec

# hdparm -tT /dev/sda

/dev/sda:
 Timing buffer-cache reads:   128 MB in  0.38 seconds =336.84 MB/sec
 Timing buffered disk reads:  64 MB in  1.54 seconds = 41.56 MB/sec

Now of course with a half gig of memory the buffered reads are gonna be a 
little skewed.  bonnie++ should be used for these tests.

-A.