Date: Thu, 29 Mar 2001 13:20:56 -0800 From: Hal Weaver <hweaver@pinetel.com> To: freebsd-questions@FreeBSD.ORG Subject: Slow, noisey hard drive activity Message-ID: <3AC3A738.B73B0404@pinetel.com>
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I've installed the following FreeBSD release on two different removable
hard drives used in the same laptop (IBM Thinkpad 760 ED):
--------------------------------------------------
# uname -a
FreeBSD 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Mon Nov 20 13:02:55 GMT
2000 jk
h@bento.FreeBSD.org:/usr/src/sys/compile/GENERIC i386
--------------------------------------------------
Builds, boots, and other intense hard drive activity takes about twice
as long on the larger hard drive (5G) than it does on the smaller
(1.2G). There is also a ticking noise accompanying the hard drive
activity on the slower drive.
Besides size, what distinguishes the slower drive is that FreeBSD shares
the drive with Win98 and another OS:
---------------------------------------------------
# fdisk
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=662 heads=240 sectors/track=63 (15120 blks/cyl)
parameters to be used for BIOS calculations are:
cylinders=662 heads=240 sectors/track=63 (15120 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 11,(DOS or Windows 95 with 32 bit FAT)
start 63, size 2494737 (1218 Meg), flag 0
beg: cyl 0/ sector 1/ head 1;
end: cyl 164/ sector 63/ head 239
The data for partition 2 is:
sysid 76,(unknown)
start 2494800, size 211680 (103 Meg), flag 0
beg: cyl 165/ sector 1/ head 0;
end: cyl 178/ sector 63/ head 239
The data for partition 3 is:
sysid 165,(FreeBSD/NetBSD/386BSD)
start 2706480, size 7302960 (3565 Meg), flag 80 (active)
beg: cyl 179/ sector 1/ head 0;
end: cyl 661/ sector 63/ head 239
The data for partition 4 is:
<UNUSED>
------------------------------------------
After the first installation of FreeBSD on this drive, I removed it and
then successively tried two Linux distributions, SuSe 6.3 and Slackware
7.1. Both of these behaved well within the same partition where FreeBSD
had been.
However, I prefer FreeBSD and have reinstalled it. Any suggestions
about how to make FreeBSD to run better while sharing the disk with
other OSs?
Thanks in advance.
Hal
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