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I'm having trouble with my SSD, it's running pretty slow.
[root@cowp ~]# hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 10 MB in 3.43 seconds = 2.91 MB/sec [root@cowp ~]#Blah .. you are kidding me right? My other 500g normal drive runs at 125MB/s (40 times faster). I did some investigating and it seems that it's using the ide driver rather than the sata one.
So the solution is to add ide0=noprobe and ide1=noprobe into the kernel settings.
#boot=/dev/sda default=0 timeout=10 splashimage=(hd0,1)/grub/ft-splash.xpm.gz hiddenmenu title CentOS (2.6.18-164.10.1.el5PAE) no probe root (hd0,1) kernel /vmlinuz-2.6.18-164.10.1.el5PAE ro root=LABEL=/ rhgb quiet ide0=noprobe ide1=noprobe initrd /initrd-2.6.18-164.10.1.el5PAE.img tand now we get much better result:
[root@cowp ~]# hdparm -t /dev/sdb /dev/sdb: Timing buffered disk reads: 500 MB in 3.00 seconds = 166.63 MB/sec [root@cowp ~]#And you can also see that the device changed. It was /dev/hda, and now it's /dev/sdb. So keep that in mind if you reference the device directly (eg in /etc/fstab)
Last Change: Monday, 11-Jan-2010 02:34:58 EST