Date: Wed, 8 Sep 1999 19:38:43 +0800 (CST) From: Michael Robinson <robinson@netrinsics.com> To: Karl.Dietz@triplan.com Cc: freebsd-stable@freebsd.org Subject: Re: Vinum, malloc, and swap Message-ID: <199909081138.TAA01242@netrinsics.com> In-Reply-To: <37D63FAC.57842E4F@triplan.com>
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Karl Dietz <Karl.Dietz@triplan.com> writes:
>Michael Robinson wrote:
>> If not, is there any other way to prevent a system panic if a drive
>> containing a swap partition fails?
>
>So what does one get from putting swap onto vinum drives?
If a drive containing a swap partition fails, the system won't panic.
For performance, you want to spread your swap across as many spindles
as possible. For reliability, you don't want to do that. Vinum potentially
allows you to have performance and reliability.
Obviously, one would use RAID 0+1, not RAID 5, for such an application.
>BTW: Is swapping to vinum supported?
Swapping to anything is supported ("man vnconfig"). The question is this:
will swapping to a vinum volume deadlock vm under -STABLE, or has the
simple fix described in the vinum introduction been implemented?
-Michael Robinson
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