From: Jef Peeraer (my.name_at_telenet.belgium)
Date: Mon, 10 May 2004 19:15:31 GMT
i have a system with 2 RAID-1 , the first with two raptors from WD ( 10000
rpm ), the second two HD's 120 Gb from maxtor ( 7200 rpm ). Both are SATA
and controlled by a 3ware 8506 raid card.
i am running kernel 2.6.4
the raptors are identified as /dev/sda and the maxtors as /dev/sdb. When i
measure speed with hdparm, the maxtors seems faster than the raptors. what
am i missing, or are these raptors really crap ?
hdparm -tT /dev/sda:
Timing buffered-cache reads : 1956 MB in 2.00 seconds = 977.66 Mb/sec
Timing buffered reads : 144 MB in 3.01 seconds = 47.80 MB /sec
hdparm -tT /dev/sdb:
Timing buffered-cache reads : 1832 MB in 2.00 seconds = 913.85 Mb/sec
Timing buffered reads : 172 MB in 3.03 seconds = 56.77 MB /sec