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Things look quiet here. But I've been doing a lot of blogging at
dan.langille.org because I prefer WordPress now.
Not all my posts there are FreeBSD related.
I am in the midst of migrating The FreeBSD Diary over to WordPress
(and you can read about that here).
Once the migration is completed, I'll move the FreeBSD posts into the
new FreeBSD Diary website.
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Adding more swapfiles
6 October 2000
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If you want to add a swapfile, perhaps you should read swap files
first. This article deals with adding a additional swapfile after adding your first
swapfile. So if you already have a swap file (and I'm not talking about a swap
partition), and you want to add another, then this is the article for you. |
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Out of swap space again
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I need yet more swap. So I went and created a new swap file:
# dd if=/dev/zero of=/usr2/swapfile bs=15m count=20
10+0 records in
20+0 records out
314572800 bytes transferred in 40.594 secs (387462 bytes/sec)
Note that the above should have give you a 300Mb file (bs=15m, count=20 or 15Mx20 =
300Mb). Enjoy. |
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Creating a new device
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Before we can use this swapfile, we need to create a new vnconfig
device. Here's how I did that:
# cd /dev
# ./MAKEDEV vn1
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Telling vnconfig about the new swapfile
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Before I started this article, my /etc/vntab contained this:
/dev/vn0c /usr4/swapfile swap
After adding the new device, here's what the config file looked like:
/dev/vn0c /usr4/swapfile swap
/dev/vn1c /usr2/swapfile swap
My thanks to Glenn Johnson for his advice on the MAKEDEV and the config file. |
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Restarting vnconfig
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Actually, I just rebooted to check some NFS issues, but I suspect the following would
be sufficient:
vnconfig -ae
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The results
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Now I have this as swap space:
$ swapinfo
Device 1K-blocks Used Avail Capacity Type
/dev/ad0s1b 70776 2128 68648 3% Interleaved
/dev/rvn0c 153472 2088 151384 1% Interleaved
/dev/rvn1c 307072 2248 304824 1% Interleaved
Total 531320 6464 524856 1%
We'll see how that goes. |
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