Re: Harddisk Problem

• Previous message: Lachlan: "RE: Harddisk Problem"
• In reply to: Lachlan: "RE: Harddisk Problem"
• Next in thread: Simon: "Re: Harddisk Problem"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Date: Fri, 10 Oct 2003 22:12:54 -0400
To: freebsd-isp@freebsd.org

When asked his whereabouts on Sat, Oct 11, 2003 at 11:57 ,
Lachlan took the fifth, drank it, and then slurred:

This really isn't an ISP related issue and more probably it should
have been posted to FreeBSD-questions - but:

> On some hdd's there is an option on the jumper settings next to
> master and slave. That for some reason, limits the size of the
> hdd. I don't know why this option exists, but it does. Also,
> you never get 70GB out of a 70GB hdd. Once again, i don't know
> why. It's just the way it is.

He really should try df with the -H option <note CAPITAL H>

He may find his space is there. Note this system as below - with
the first output using -h and the second using -H.

Note particularl /dev/ad0s2g. Add the total of used and available
and you come up with 28.8G total space with -h but you
get 31.1G with the -H. Extroplating that to his larger
drive I suspec he will see the correct amount.

The -H is 'human readble' and it is a decimal byte count - the way
manufacturers show their drives with 1,000,000 bytes equalling 1MB,
while the -h used blocks of 1024 and thus will look like there is
less space.

Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s2a 123M 43M 70M 38% /
/dev/ad0s2g 32G 3.8G 25G 13% /usr
/dev/ad0s2f 3.9G 2.0K 3.6G 0% /usr2
/dev/ad0s2e 123M 30M 83M 27% /var
procfs 4.0K 4.0K 0B 100% /proc

Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s2a 129M 45M 73M 38% /
/dev/ad0s2g 34G 4.1G 27G 13% /usr
/dev/ad0s2f 4.2G 2.0K 3.9G 0% /usr2
/dev/ad0s2e 129M 31M 87M 27% /var
procfs 4.1K 4.1K 0B 100% /proc
>
> -----Original Message-----
> From: owner-freebsd-isp@freebsd.org [mailto:owner-freebsd-isp@freebsd.org]On
> Behalf Of PsYxAkIaS (FreeBSD)
> Sent: Saturday, October 11, 2003 7:30 AM
> To: freebsd-isp@freebsd.org
> Subject: Harddisk Problem
>
>
> Hello,
>
> We just installed and mounted a 2nd HDD(secondary ide channel) on a
> Dedicated Server on FreeBSD 4.8 and look what it gives:
>
> ] df
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/ad0s1a 2015918 52114 1802532 3% /
> /dev/ad0s1f 22479870 16924774 3756708 82% /usr
> /dev/ad0s1e 4031950 73418 3635976 2% /var
> procfs 4 4 0 100% /proc
> /dev/ad2s1e 76958474 4 70801794 0% /drive2
>
> ] df -h
> Filesystem Size Used Avail Capacity Mounted on
> /dev/ad0s1a 1.9G 51M 1.7G 3% /
> /dev/ad0s1f 21G 16G 3.6G 82% /usr
> /dev/ad0s1e 3.8G 72M 3.5G 2% /var
> procfs 4.0K 4.0K 0B 100% /proc
> /dev/ad2s1e 73G 4.0K 68G 0% /drive2
>
> ] cat /etc/fstab
> # See the fstab(5) manual page for important information on automatic mounts
> # of network filesystems before modifying this file.
> #
> # Device Mountpoint FStype Options Dump
> Pass#
> /dev/ad0s1b none swap sw 0 0
> /dev/ad0s1a / ufs rw 1 1
> /dev/ad0s1f /usr ufs rw 2 2
> /dev/ad0s1e /var ufs rw 2 2
> /dev/acd0c /cdrom cd9660 ro,noauto 0 0
> proc /proc procfs rw 0 0
> /dev/ad2s1e /drive2 ufs rw 2 2
>
> The problem is that from 73GB (80gb hdd) it only sees free 68GB.
>
> How can i check if it has bad sectors? A friend suggested me low-level
> format but I never done that before under unix.
>
> Also, do i need to be in single-user (I dont have physical access, only
> remote root via ssh).
>
>
> Thank you.
> _______________________________________________
> freebsd-isp@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-isp
> To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org"
>
>
>
> _______________________________________________
> freebsd-isp@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-isp
> To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org"

-- 
Bill Vermillion - bv @ wjv . com
_______________________________________________
freebsd-isp@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-isp
To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org"

• Previous message: Lachlan: "RE: Harddisk Problem"
• In reply to: Lachlan: "RE: Harddisk Problem"
• Next in thread: Simon: "Re: Harddisk Problem"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]