ccd usage

2005-06-23 Thread Dan Z
Greetings,

I'm planning a new install and my question regards the usage of ccd. 
I have two disks of 30G and 20G.  Is it possible to use ccd to create
a single /usr partition across these two disks?  How might this be
done?  Can it be done from the sysinstall menu off the boot disk or
will I need to do some toying around after initial install is
completed?

Also, while not part of the ccd question, if I'm not mistaken, I can
create multiple swap partitions to spread swap usage across multiple
drives.  Is this true?

Thanks in advance.

Dan Z.
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Re: ccd usage

2005-06-23 Thread Dmitry Mityugov
On 6/23/05, Dan Z [EMAIL PROTECTED] wrote:
 Greetings,
 
 I'm planning a new install and my question regards the usage of ccd.
 I have two disks of 30G and 20G.  Is it possible to use ccd to create
 a single /usr partition across these two disks?  How might this be
 done?  Can it be done from the sysinstall menu off the boot disk or
 will I need to do some toying around after initial install is
 completed?
 
 Also, while not part of the ccd question, if I'm not mistaken, I can
 create multiple swap partitions to spread swap usage across multiple
 drives.  Is this true?

Yes, this is true. From
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-initial.html:

On larger systems with multiple SCSI disks (or multiple IDE disks
operating on different controllers), it is recommend that a swap is
configured on each drive (up to four drives). The swap partitions
should be approximately the same size. The kernel can handle arbitrary
sizes but internal data structures scale to 4 times the largest swap
partition. Keeping the swap partitions near the same size will allow
the kernel to optimally stripe swap space across disks

Hopefully your first question will be answered by somebody else.

-- 
Dmitry

We live less by imagination than despite it - Rockwell Kent, N by E
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Re: ccd usage

2005-06-23 Thread Anatoliy Dmytriyev

Dan Z wrote:


Greetings,

I'm planning a new install and my question regards the usage of ccd. 
I have two disks of 30G and 20G.  Is it possible to use ccd to create

a single /usr partition across these two disks?  How might this be
done?  Can it be done from the sysinstall menu off the boot disk or
will I need to do some toying around after initial install is
completed?



http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/raid.html



--
Anatoliy Dmytriyev
[EMAIL PROTECTED]


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