Arturo di Gioia wrote:
On Thu, 2003-10-30 at 09:53, Arturo di Gioia wrote:

I'm experiencing
a rough 35MB/s of sequential read speed with my current ATA133 HD.


Two numbers from hdparms, just for very rough comparison

/dev/hda:
 Timing buffer-cache reads:   888 MB in  2.00 seconds = 442.89 MB/sec
 Timing buffered disk reads:  124 MB in  3.04 seconds =  40.72 MB/sec

One can easily get better performance using software raid.


This is using ATA100 with 2 disks on the same IDE cable:

hdparm -tT /dev/md0

/dev/md0:
 Timing buffer-cache reads:   884 MB in  2.00 seconds = 442.00 MB/sec
 Timing buffered disk reads:  136 MB in  3.02 seconds =  45.03 MB/sec

If you need fast disk access string a bunch of cheap disks in RAID-5. Buy one extra for a spare for automatic failover...

--
Bryan Whitehead
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